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[PATCH] mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer

by Christophe Kerello

Avoid below overlapping mappings by using a contiguous non-cacheable buffer. [ 4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST, overlapping mappings aren't supported [ 4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300 [ 4.097071] Modules linked in: [ 4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1 [ 4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT) [ 4.118824] Workqueue: events_unbound deferred_probe_work_func [ 4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.131624] pc : add_dma_entry+0x23c/0x300 [ 4.135658] lr : add_dma_entry+0x23c/0x300 [ 4.139792] sp : ffff800009dbb490 [ 4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000 [ 4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8 [ 4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20 [ 4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006 [ 4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e [ 4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec [ 4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58 [ 4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000 [ 4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000 [ 4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40 [ 4.214185] Call trace: [ 4.216605] add_dma_entry+0x23c/0x300 [ 4.220338] debug_dma_map_sg+0x198/0x350 [ 4.224373] __dma_map_sg_attrs+0xa0/0x110 [ 4.228411] dma_map_sg_attrs+0x10/0x2c [ 4.232247] stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc [ 4.237088] stm32_fmc2_nfc_seq_read_page+0xc8/0x174 [ 4.242127] nand_read_oob+0x1d4/0x8e0 [ 4.245861] mtd_read_oob_std+0x58/0x84 [ 4.249596] mtd_read_oob+0x90/0x150 [ 4.253231] mtd_read+0x68/0xac Signed-off-by: Christophe Kerello <christophe.kerello(a)foss.st.com> Cc: stable(a)vger.kernel.org Fixes: 2cd457f328c1 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver") --- drivers/mtd/nand/raw/stm32_fmc2_nand.c | 28 +++++++++------------------- 1 file changed, 9 insertions(+), 19 deletions(-) diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c index a960403081f11091837b73b8610231fe421d0c05..222c3c3b684841879a55835e802dcf9983860c28 100644 --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -272,6 +272,7 @@ struct stm32_fmc2_nfc { struct sg_table dma_data_sg; struct sg_table dma_ecc_sg; u8 *ecc_buf; + dma_addr_t dma_ecc_addr; int dma_ecc_len; u32 tx_dma_max_burst; u32 rx_dma_max_burst; @@ -902,17 +903,10 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, if (!write_data && !raw) { /* Configure DMA ECC status */ - p = nfc->ecc_buf; for_each_sg(nfc->dma_ecc_sg.sgl, sg, eccsteps, s) { - sg_set_buf(sg, p, nfc->dma_ecc_len); - p += nfc->dma_ecc_len; - } - - ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl, - eccsteps, dma_data_dir); - if (!ret) { - ret = -EIO; - goto err_unmap_data; + sg_dma_address(sg) = nfc->dma_ecc_addr + + s * nfc->dma_ecc_len; + sg_dma_len(sg) = nfc->dma_ecc_len; } desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch, @@ -921,7 +915,7 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, DMA_PREP_INTERRUPT); if (!desc_ecc) { ret = -ENOMEM; - goto err_unmap_ecc; + goto err_unmap_data; } reinit_completion(&nfc->dma_ecc_complete); @@ -929,7 +923,7 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, desc_ecc->callback_param = &nfc->dma_ecc_complete; ret = dma_submit_error(dmaengine_submit(desc_ecc)); if (ret) - goto err_unmap_ecc; + goto err_unmap_data; dma_async_issue_pending(nfc->dma_ecc_ch); } @@ -949,7 +943,7 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, if (!write_data && !raw) dmaengine_terminate_all(nfc->dma_ecc_ch); ret = -ETIMEDOUT; - goto err_unmap_ecc; + goto err_unmap_data; } /* Wait DMA data transfer completion */ @@ -969,11 +963,6 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, } } -err_unmap_ecc: - if (!write_data && !raw) - dma_unmap_sg(nfc->dev, nfc->dma_ecc_sg.sgl, - eccsteps, dma_data_dir); - err_unmap_data: dma_unmap_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir); @@ -1610,7 +1599,8 @@ static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) return ret; /* Allocate a buffer to store ECC status registers */ - nfc->ecc_buf = devm_kzalloc(nfc->dev, FMC2_MAX_ECC_BUF_LEN, GFP_KERNEL); + nfc->ecc_buf = dmam_alloc_coherent(nfc->dev, FMC2_MAX_ECC_BUF_LEN, + &nfc->dma_ecc_addr, GFP_KERNEL); if (!nfc->ecc_buf) return -ENOMEM; --- base-commit: fb2fae70e7e985c4acb1ad96110d8b98bb64a87c change-id: 20250811-fix-dma-overlapping-1c8fba7fd519 Best regards, -- Christophe Kerello <christophe.kerello(a)foss.st.com>

2 weeks

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UDF failures in 5.15

by Jan Kara

Hello, Henrik notified me that UDF in 5.15 kernel is failing for him, likely because commit 1ea1cd11c72d ("udf: Fix directory iteration for longer tail extents") is missing 5.15 stable tree. Basically wherever d16076d9b684b got backported, 1ea1cd11c72d needs to be backported as well (I'm sorry for forgetting to add proper Fixes tag back then). Honza -- Jan Kara <jack(a)suse.com> SUSE Labs, CR

2 weeks

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[PATCH] accel/ivpu: Prevent recovery work from being queued during device removal

by Jacek Lawrynowicz

From: Karol Wachowski <karol.wachowski(a)intel.com> Use disable_work_sync() instead of cancel_work_sync() in ivpu_dev_fini() to ensure that no new recovery work items can be queued after device removal has started. Previously, recovery work could be scheduled even after canceling existing work, potentially leading to use-after-free bugs if recovery accessed freed resources. Rename ivpu_pm_cancel_recovery() to ivpu_pm_disable_recovery() to better reflect its new behavior. Fixes: 58cde80f45a2 ("accel/ivpu: Use dedicated work for job timeout detection") Cc: <stable(a)vger.kernel.org> # v6.8+ Signed-off-by: Karol Wachowski <karol.wachowski(a)intel.com> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> --- drivers/accel/ivpu/ivpu_drv.c | 2 +- drivers/accel/ivpu/ivpu_pm.c | 4 ++-- drivers/accel/ivpu/ivpu_pm.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 3d6d52492536a..3289751b47573 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -677,7 +677,7 @@ static void ivpu_bo_unbind_all_user_contexts(struct ivpu_device *vdev) static void ivpu_dev_fini(struct ivpu_device *vdev) { ivpu_jobs_abort_all(vdev); - ivpu_pm_cancel_recovery(vdev); + ivpu_pm_disable_recovery(vdev); ivpu_pm_disable(vdev); ivpu_prepare_for_reset(vdev); ivpu_shutdown(vdev); diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c index eacda1dbe8405..475ddc94f1cfe 100644 --- a/drivers/accel/ivpu/ivpu_pm.c +++ b/drivers/accel/ivpu/ivpu_pm.c @@ -417,10 +417,10 @@ void ivpu_pm_init(struct ivpu_device *vdev) ivpu_dbg(vdev, PM, "Autosuspend delay = %d\n", delay); } -void ivpu_pm_cancel_recovery(struct ivpu_device *vdev) +void ivpu_pm_disable_recovery(struct ivpu_device *vdev) { drm_WARN_ON(&vdev->drm, delayed_work_pending(&vdev->pm->job_timeout_work)); - cancel_work_sync(&vdev->pm->recovery_work); + disable_work_sync(&vdev->pm->recovery_work); } void ivpu_pm_enable(struct ivpu_device *vdev) diff --git a/drivers/accel/ivpu/ivpu_pm.h b/drivers/accel/ivpu/ivpu_pm.h index 89b264cc0e3e7..a2aa7a27f32ef 100644 --- a/drivers/accel/ivpu/ivpu_pm.h +++ b/drivers/accel/ivpu/ivpu_pm.h @@ -25,7 +25,7 @@ struct ivpu_pm_info { void ivpu_pm_init(struct ivpu_device *vdev); void ivpu_pm_enable(struct ivpu_device *vdev); void ivpu_pm_disable(struct ivpu_device *vdev); -void ivpu_pm_cancel_recovery(struct ivpu_device *vdev); +void ivpu_pm_disable_recovery(struct ivpu_device *vdev); int ivpu_pm_suspend_cb(struct device *dev); int ivpu_pm_resume_cb(struct device *dev); -- 2.45.1

2 weeks

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[PATCH v2] drm/rcar-du: dsi: Fix 1/2/3 lane support

by Marek Vasut

Remove fixed PPI lane count setup. The R-Car DSI host is capable of operating in 1..4 DSI lane mode. Remove the hard-coded 4-lane configuration from PPI register settings and instead configure the PPI lane count according to lane count information already obtained by this driver instance. Configure TXSETR register to match PPI lane count. The R-Car V4H Reference Manual R19UH0186EJ0121 Rev.1.21 section 67.2.2.3 Tx Set Register (TXSETR), field LANECNT description indicates that the TXSETR register LANECNT bitfield lane count must be configured such, that it matches lane count configuration in PPISETR register DLEN bitfield. Make sure the LANECNT and DLEN bitfields are configured to match. Fixes: 155358310f01 ("drm: rcar-du: Add R-Car DSI driver") Cc: <stable(a)vger.kernel.org> Signed-off-by: Marek Vasut <marek.vasut+renesas(a)mailbox.org> --- Cc: David Airlie <airlied(a)gmail.com> Cc: Geert Uytterhoeven <geert+renesas(a)glider.be> Cc: Kieran Bingham <kieran.bingham+renesas(a)ideasonboard.com> Cc: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Cc: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Cc: Magnus Damm <magnus.damm(a)gmail.com> Cc: Maxime Ripard <mripard(a)kernel.org> Cc: Simona Vetter <simona(a)ffwll.ch> Cc: Thomas Zimmermann <tzimmermann(a)suse.de> Cc: Tomi Valkeinen <tomi.valkeinen+renesas(a)ideasonboard.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-renesas-soc(a)vger.kernel.org --- V2: - Split this out of a series, update commit message, combine from drm/rcar-du: dsi: Remove fixed PPI lane count setup drm/rcar-du: dsi: Configure TXSETR register to match PPI lane count - add Fixes tag, CC stable --- drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c | 5 ++++- drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h | 8 ++++---- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c index 1af4c73f7a88..952c3efb74da 100644 --- a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c @@ -576,7 +576,10 @@ static int rcar_mipi_dsi_startup(struct rcar_mipi_dsi *dsi, udelay(10); rcar_mipi_dsi_clr(dsi, CLOCKSET1, CLOCKSET1_UPDATEPLL); - ppisetr = PPISETR_DLEN_3 | PPISETR_CLEN; + rcar_mipi_dsi_clr(dsi, TXSETR, TXSETR_LANECNT_MASK); + rcar_mipi_dsi_set(dsi, TXSETR, dsi->lanes - 1); + + ppisetr = ((BIT(dsi->lanes) - 1) & PPISETR_DLEN_MASK) | PPISETR_CLEN; rcar_mipi_dsi_write(dsi, PPISETR, ppisetr); rcar_mipi_dsi_set(dsi, PHYSETUP, PHYSETUP_SHUTDOWNZ); diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h index a6b276f1d6ee..a54c7eb4113b 100644 --- a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h @@ -12,6 +12,9 @@ #define LINKSR_LPBUSY (1 << 1) #define LINKSR_HSBUSY (1 << 0) +#define TXSETR 0x100 +#define TXSETR_LANECNT_MASK (0x3 << 0) + /* * Video Mode Register */ @@ -80,10 +83,7 @@ * PHY-Protocol Interface (PPI) Registers */ #define PPISETR 0x700 -#define PPISETR_DLEN_0 (0x1 << 0) -#define PPISETR_DLEN_1 (0x3 << 0) -#define PPISETR_DLEN_2 (0x7 << 0) -#define PPISETR_DLEN_3 (0xf << 0) +#define PPISETR_DLEN_MASK (0xf << 0) #define PPISETR_CLEN (1 << 8) #define PPICLCR 0x710 -- 2.47.2

2 weeks

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[PATCH] xtensa: simdisk: add input size check in proc_write_simdisk

by Miaoqian Lin

A malicious user could pass an arbitrarily bad value to memdup_user_nul(), potentially causing kernel crash. This follows the same pattern as commit ee76746387f6 ("netdevsim: prevent bad user input in nsim_dev_health_break_write()") Fixes: b6c7e873daf7 ("xtensa: ISS: add host file-based simulated disk") Fixes: 16e5c1fc3604 ("convert a bunch of open-coded instances of memdup_user_nul()") Cc: stable(a)vger.kernel.org Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com> --- arch/xtensa/platforms/iss/simdisk.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 6ed009318d24..3cafc8feddee 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -231,10 +231,14 @@ static ssize_t proc_read_simdisk(struct file *file, char __user *buf, static ssize_t proc_write_simdisk(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - char *tmp = memdup_user_nul(buf, count); + char *tmp; struct simdisk *dev = pde_data(file_inode(file)); int err; + if (count == 0 || count > PAGE_SIZE) + return -EINVAL; + + tmp = memdup_user_nul(buf, count); if (IS_ERR(tmp)) return PTR_ERR(tmp); -- 2.35.1

2 weeks

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[PATCH v4] mm: slub: avoid wake up kswapd in set_track_prepare

by yangshiguang1011＠163.com

From: yangshiguang <yangshiguang(a)xiaomi.com> From: yangshiguang <yangshiguang(a)xiaomi.com> set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)[n].lock, but when enabled CONFIG_DEBUG_OBJECTS_TIMERS, may wake up kswapd in set_track_prepare, and try to hold the per_cpu(hrtimer_bases)[n].lock. Avoid deadlock caused by implicitly waking up kswapd by passing in allocation flags. And the slab caller context has preemption disabled, so __GFP_KSWAPD_RECLAIM must not appear in gfp_flags. The oops looks something like: BUG: spinlock recursion on CPU#3, swapper/3/0 lock: 0xffffff8a4bf29c80, .magic: dead4ead, .owner: swapper/3/0, .owner_cpu: 3 Hardware name: Qualcomm Technologies, Inc. Popsicle based on SM8850 (DT) Call trace: spin_bug+0x0 _raw_spin_lock_irqsave+0x80 hrtimer_try_to_cancel+0x94 task_contending+0x10c enqueue_dl_entity+0x2a4 dl_server_start+0x74 enqueue_task_fair+0x568 enqueue_task+0xac do_activate_task+0x14c ttwu_do_activate+0xcc try_to_wake_up+0x6c8 default_wake_function+0x20 autoremove_wake_function+0x1c __wake_up+0xac wakeup_kswapd+0x19c wake_all_kswapds+0x78 __alloc_pages_slowpath+0x1ac __alloc_pages_noprof+0x298 stack_depot_save_flags+0x6b0 stack_depot_save+0x14 set_track_prepare+0x5c ___slab_alloc+0xccc __kmalloc_cache_noprof+0x470 __set_page_owner+0x2bc post_alloc_hook[jt]+0x1b8 prep_new_page+0x28 get_page_from_freelist+0x1edc __alloc_pages_noprof+0x13c alloc_slab_page+0x244 allocate_slab+0x7c ___slab_alloc+0x8e8 kmem_cache_alloc_noprof+0x450 debug_objects_fill_pool+0x22c debug_object_activate+0x40 enqueue_hrtimer[jt]+0xdc hrtimer_start_range_ns+0x5f8 ... Signed-off-by: yangshiguang <yangshiguang(a)xiaomi.com> Fixes: 5cf909c553e9 ("mm/slub: use stackdepot to save stack trace in objects") Cc: stable(a)vger.kernel.org --- v1 -> v2: propagate gfp flags to set_track_prepare() v2 -> v3: Remove the gfp restriction in set_track_prepare() v3 -> v4: Re-describe the comments in set_track_prepare. [1]https://lore.kernel.org/all/20250801065121.876793-1-yangshiguang1011@163.… [2]https://lore.kernel.org/all/20250814111641.380629-2-yangshiguang1011@163.… [3]https://lore.kernel.org/all/20250825121737.2535732-1-yangshiguang1011@163… --- mm/slub.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 30003763d224..b0af51a5321b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -962,19 +962,25 @@ static struct track *get_track(struct kmem_cache *s, void *object, } #ifdef CONFIG_STACKDEPOT -static noinline depot_stack_handle_t set_track_prepare(void) +static noinline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { depot_stack_handle_t handle; unsigned long entries[TRACK_ADDRS_COUNT]; unsigned int nr_entries; + /* + * Preemption is disabled in ___slab_alloc() so we need to disallow + * blocking. The flags are further adjusted by gfp_nested_mask() in + * stack_depot itself. + */ + gfp_flags &= ~(__GFP_DIRECT_RECLAIM); nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 3); - handle = stack_depot_save(entries, nr_entries, GFP_NOWAIT); + handle = stack_depot_save(entries, nr_entries, gfp_flags); return handle; } #else -static inline depot_stack_handle_t set_track_prepare(void) +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } @@ -996,9 +1002,9 @@ static void set_track_update(struct kmem_cache *s, void *object, } static __always_inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) { - depot_stack_handle_t handle = set_track_prepare(); + depot_stack_handle_t handle = set_track_prepare(gfp_flags); set_track_update(s, object, alloc, addr, handle); } @@ -1921,9 +1927,9 @@ static inline bool free_debug_processing(struct kmem_cache *s, static inline void slab_pad_check(struct kmem_cache *s, struct slab *slab) {} static inline int check_object(struct kmem_cache *s, struct slab *slab, void *object, u8 val) { return 1; } -static inline depot_stack_handle_t set_track_prepare(void) { return 0; } +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } static inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) {} + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) {} static inline void add_full(struct kmem_cache *s, struct kmem_cache_node *n, struct slab *slab) {} static inline void remove_full(struct kmem_cache *s, struct kmem_cache_node *n, @@ -3878,7 +3884,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, * tracking info and return the object. */ if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -3910,7 +3916,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto new_objects; if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -4422,7 +4428,7 @@ static noinline void free_to_partial_list( depot_stack_handle_t handle = 0; if (s->flags & SLAB_STORE_USER) - handle = set_track_prepare(); + handle = set_track_prepare(__GFP_NOWARN); spin_lock_irqsave(&n->list_lock, flags); -- 2.43.0

2 weeks

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[PATCH] fbdev/simplefb: Fix use after free in simplefb_detach_genpds()

by Janne Grunau

The pm_domain cleanup can not be devres managed as it uses struct simplefb_par which is allocated within struct fb_info by framebuffer_alloc(). This allocation is explicitly freed by unregister_framebuffer() in simplefb_remove(). Devres managed cleanup runs after the device remove call and thus can no longer access struct simplefb_par. Call simplefb_detach_genpds() explicitly from simplefb_destroy() like the cleanup functions for clocks and regulators. Fixes an use after free on M2 Mac mini during aperture_remove_conflicting_devices() using the downstream asahi kernel with Debian's kernel config. For unknown reasons this started to consistently dereference an invalid pointer in v6.16.3 based kernels. [ 6.736134] BUG: KASAN: slab-use-after-free in simplefb_detach_genpds+0x58/0x220 [ 6.743545] Read of size 4 at addr ffff8000304743f0 by task (udev-worker)/227 [ 6.750697] [ 6.752182] CPU: 6 UID: 0 PID: 227 Comm: (udev-worker) Tainted: G S 6.16.3-asahi+ #16 PREEMPTLAZY [ 6.752186] Tainted: [S]=CPU_OUT_OF_SPEC [ 6.752187] Hardware name: Apple Mac mini (M2, 2023) (DT) [ 6.752189] Call trace: [ 6.752190] show_stack+0x34/0x98 (C) [ 6.752194] dump_stack_lvl+0x60/0x80 [ 6.752197] print_report+0x17c/0x4d8 [ 6.752201] kasan_report+0xb4/0x100 [ 6.752206] __asan_report_load4_noabort+0x20/0x30 [ 6.752209] simplefb_detach_genpds+0x58/0x220 [ 6.752213] devm_action_release+0x50/0x98 [ 6.752216] release_nodes+0xd0/0x2c8 [ 6.752219] devres_release_all+0xfc/0x178 [ 6.752221] device_unbind_cleanup+0x28/0x168 [ 6.752224] device_release_driver_internal+0x34c/0x470 [ 6.752228] device_release_driver+0x20/0x38 [ 6.752231] bus_remove_device+0x1b0/0x380 [ 6.752234] device_del+0x314/0x820 [ 6.752238] platform_device_del+0x3c/0x1e8 [ 6.752242] platform_device_unregister+0x20/0x50 [ 6.752246] aperture_detach_platform_device+0x1c/0x30 [ 6.752250] aperture_detach_devices+0x16c/0x290 [ 6.752253] aperture_remove_conflicting_devices+0x34/0x50 ... [ 6.752343] [ 6.967409] Allocated by task 62: [ 6.970724] kasan_save_stack+0x3c/0x70 [ 6.974560] kasan_save_track+0x20/0x40 [ 6.978397] kasan_save_alloc_info+0x40/0x58 [ 6.982670] __kasan_kmalloc+0xd4/0xd8 [ 6.986420] __kmalloc_noprof+0x194/0x540 [ 6.990432] framebuffer_alloc+0xc8/0x130 [ 6.994444] simplefb_probe+0x258/0x2378 ... [ 7.054356] [ 7.055838] Freed by task 227: [ 7.058891] kasan_save_stack+0x3c/0x70 [ 7.062727] kasan_save_track+0x20/0x40 [ 7.066565] kasan_save_free_info+0x4c/0x80 [ 7.070751] __kasan_slab_free+0x6c/0xa0 [ 7.074675] kfree+0x10c/0x380 [ 7.077727] framebuffer_release+0x5c/0x90 [ 7.081826] simplefb_destroy+0x1b4/0x2c0 [ 7.085837] put_fb_info+0x98/0x100 [ 7.089326] unregister_framebuffer+0x178/0x320 [ 7.093861] simplefb_remove+0x3c/0x60 [ 7.097611] platform_remove+0x60/0x98 [ 7.101361] device_remove+0xb8/0x160 [ 7.105024] device_release_driver_internal+0x2fc/0x470 [ 7.110256] device_release_driver+0x20/0x38 [ 7.114529] bus_remove_device+0x1b0/0x380 [ 7.118628] device_del+0x314/0x820 [ 7.122116] platform_device_del+0x3c/0x1e8 [ 7.126302] platform_device_unregister+0x20/0x50 [ 7.131012] aperture_detach_platform_device+0x1c/0x30 [ 7.136157] aperture_detach_devices+0x16c/0x290 [ 7.140779] aperture_remove_conflicting_devices+0x34/0x50 ... Reported-by: Daniel Huhardeaux <tech(a)tootai.net> Cc: stable(a)vger.kernel.org Fixes: 92a511a568e44 ("fbdev/simplefb: Add support for generic power-domains") Signed-off-by: Janne Grunau <j(a)jannau.net> --- drivers/video/fbdev/simplefb.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index 1893815dc67f4c1403eea42c0e10a7ead4d96ba9..cd5193e704ffe1ccc178c13916a462446af9cb14 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -93,6 +93,7 @@ struct simplefb_par { static void simplefb_clocks_destroy(struct simplefb_par *par); static void simplefb_regulators_destroy(struct simplefb_par *par); +static void simplefb_detach_genpds(void *res); /* * fb_ops.fb_destroy is called by the last put_fb_info() call at the end @@ -105,6 +106,7 @@ static void simplefb_destroy(struct fb_info *info) simplefb_regulators_destroy(info->par); simplefb_clocks_destroy(info->par); + simplefb_detach_genpds(info->par); if (info->screen_base) iounmap(info->screen_base); @@ -465,13 +467,11 @@ static int simplefb_attach_genpds(struct simplefb_par *par, return err; } - par->num_genpds = err; - /* * Single power-domain devices are handled by the driver core, so * nothing to do here. */ - if (par->num_genpds <= 1) + if (err <= 1) return 0; par->genpds = devm_kcalloc(dev, par->num_genpds, sizeof(*par->genpds), @@ -485,6 +485,12 @@ static int simplefb_attach_genpds(struct simplefb_par *par, if (!par->genpd_links) return -ENOMEM; + /* + * Set num_genpds only after genpds and genpd_links are allocated to + * exit early from simplefb_detach_genpds() without full initialisation. + */ + par->num_genpds = err; + for (i = 0; i < par->num_genpds; i++) { par->genpds[i] = dev_pm_domain_attach_by_id(dev, i); if (IS_ERR(par->genpds[i])) { @@ -506,9 +512,10 @@ static int simplefb_attach_genpds(struct simplefb_par *par, dev_warn(dev, "failed to link power-domain %u\n", i); } - return devm_add_action_or_reset(dev, simplefb_detach_genpds, par); + return 0; } #else +static void simplefb_detach_genpds(void *res) { } static int simplefb_attach_genpds(struct simplefb_par *par, struct platform_device *pdev) { --- base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585 change-id: 20250901-simplefb-genpd-uaf-352704761a29 Best regards, -- Janne Grunau <j(a)jannau.net>

2 weeks

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[PATCH v5] mm: slub: avoid wake up kswapd in set_track_prepare

by yangshiguang1011＠163.com

From: yangshiguang <yangshiguang(a)xiaomi.com> set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)[n].lock, but when enabled CONFIG_DEBUG_OBJECTS_TIMERS, may wake up kswapd in set_track_prepare, and try to hold the per_cpu(hrtimer_bases)[n].lock. Avoid deadlock caused by implicitly waking up kswapd by passing in allocation flags. And the slab caller context has preemption disabled, so __GFP_DIRECT_RECLAIM must not appear in gfp_flags. The oops looks something like: BUG: spinlock recursion on CPU#3, swapper/3/0 lock: 0xffffff8a4bf29c80, .magic: dead4ead, .owner: swapper/3/0, .owner_cpu: 3 Hardware name: Qualcomm Technologies, Inc. Popsicle based on SM8850 (DT) Call trace: spin_bug+0x0 _raw_spin_lock_irqsave+0x80 hrtimer_try_to_cancel+0x94 task_contending+0x10c enqueue_dl_entity+0x2a4 dl_server_start+0x74 enqueue_task_fair+0x568 enqueue_task+0xac do_activate_task+0x14c ttwu_do_activate+0xcc try_to_wake_up+0x6c8 default_wake_function+0x20 autoremove_wake_function+0x1c __wake_up+0xac wakeup_kswapd+0x19c wake_all_kswapds+0x78 __alloc_pages_slowpath+0x1ac __alloc_pages_noprof+0x298 stack_depot_save_flags+0x6b0 stack_depot_save+0x14 set_track_prepare+0x5c ___slab_alloc+0xccc __kmalloc_cache_noprof+0x470 __set_page_owner+0x2bc post_alloc_hook[jt]+0x1b8 prep_new_page+0x28 get_page_from_freelist+0x1edc __alloc_pages_noprof+0x13c alloc_slab_page+0x244 allocate_slab+0x7c ___slab_alloc+0x8e8 kmem_cache_alloc_noprof+0x450 debug_objects_fill_pool+0x22c debug_object_activate+0x40 enqueue_hrtimer[jt]+0xdc hrtimer_start_range_ns+0x5f8 ... Signed-off-by: yangshiguang <yangshiguang(a)xiaomi.com> Fixes: 5cf909c553e9 ("mm/slub: use stackdepot to save stack trace in objects") Cc: stable(a)vger.kernel.org --- v1 -> v2: propagate gfp flags to set_track_prepare() v2 -> v3: Remove the gfp restriction in set_track_prepare() v3 -> v4: Re-describe the comments in set_track_prepare. v4 -> v5: Modify the patch commit. [1]https://lore.kernel.org/all/20250801065121.876793-1-yangshiguang1011@163.… [2]https://lore.kernel.org/all/20250814111641.380629-2-yangshiguang1011@163.… [3]https://lore.kernel.org/all/20250825121737.2535732-1-yangshiguang1011@163… [4]https://lore.kernel.org/all/20250830020946.1767573-1-yangshiguang1011@163… --- mm/slub.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 30003763d224..b0af51a5321b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -962,19 +962,25 @@ static struct track *get_track(struct kmem_cache *s, void *object, } #ifdef CONFIG_STACKDEPOT -static noinline depot_stack_handle_t set_track_prepare(void) +static noinline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { depot_stack_handle_t handle; unsigned long entries[TRACK_ADDRS_COUNT]; unsigned int nr_entries; + /* + * Preemption is disabled in ___slab_alloc() so we need to disallow + * blocking. The flags are further adjusted by gfp_nested_mask() in + * stack_depot itself. + */ + gfp_flags &= ~(__GFP_DIRECT_RECLAIM); nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 3); - handle = stack_depot_save(entries, nr_entries, GFP_NOWAIT); + handle = stack_depot_save(entries, nr_entries, gfp_flags); return handle; } #else -static inline depot_stack_handle_t set_track_prepare(void) +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } @@ -996,9 +1002,9 @@ static void set_track_update(struct kmem_cache *s, void *object, } static __always_inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) { - depot_stack_handle_t handle = set_track_prepare(); + depot_stack_handle_t handle = set_track_prepare(gfp_flags); set_track_update(s, object, alloc, addr, handle); } @@ -1921,9 +1927,9 @@ static inline bool free_debug_processing(struct kmem_cache *s, static inline void slab_pad_check(struct kmem_cache *s, struct slab *slab) {} static inline int check_object(struct kmem_cache *s, struct slab *slab, void *object, u8 val) { return 1; } -static inline depot_stack_handle_t set_track_prepare(void) { return 0; } +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } static inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) {} + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) {} static inline void add_full(struct kmem_cache *s, struct kmem_cache_node *n, struct slab *slab) {} static inline void remove_full(struct kmem_cache *s, struct kmem_cache_node *n, @@ -3878,7 +3884,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, * tracking info and return the object. */ if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -3910,7 +3916,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto new_objects; if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -4422,7 +4428,7 @@ static noinline void free_to_partial_list( depot_stack_handle_t handle = 0; if (s->flags & SLAB_STORE_USER) - handle = set_track_prepare(); + handle = set_track_prepare(__GFP_NOWARN); spin_lock_irqsave(&n->list_lock, flags); -- 2.43.0

2 weeks

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[PATCH v2 3/3] drm/xe: Block exec and rebind worker while evicting for suspend / hibernate

by Thomas Hellström

When the xe pm_notifier evicts for suspend / hibernate, there might be racing tasks trying to re-validate again. This can lead to suspend taking excessive time or get stuck in a live-lock. This behaviour becomes much worse with the fix that actually makes re-validation bring back bos to VRAM rather than letting them remain in TT. Prevent that by having exec and the rebind worker waiting for a completion that is set to block by the pm_notifier before suspend and is signaled by the pm_notifier after resume / wakeup. It's probably still possible to craft malicious applications that block suspending. More work is pending to fix that. Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4288 Fixes: c6a4d46ec1d7 ("drm/xe: evict user memory in PM notifier") Cc: Matthew Auld <matthew.auld(a)intel.com> Cc: Rodrigo Vivi <rodrigo.vivi(a)intel.com> Cc: <stable(a)vger.kernel.org> # v6.16+ Signed-off-by: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> --- drivers/gpu/drm/xe/xe_device_types.h | 2 ++ drivers/gpu/drm/xe/xe_exec.c | 9 +++++++++ drivers/gpu/drm/xe/xe_pm.c | 4 ++++ drivers/gpu/drm/xe/xe_vm.c | 14 ++++++++++++++ 4 files changed, 29 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h index 092004d14db2..6602bd678cbc 100644 --- a/drivers/gpu/drm/xe/xe_device_types.h +++ b/drivers/gpu/drm/xe/xe_device_types.h @@ -507,6 +507,8 @@ struct xe_device { /** @pm_notifier: Our PM notifier to perform actions in response to various PM events. */ struct notifier_block pm_notifier; + /** @pm_block: Completion to block validating tasks on suspend / hibernate prepare */ + struct completion pm_block; /** @pmt: Support the PMT driver callback interface */ struct { diff --git a/drivers/gpu/drm/xe/xe_exec.c b/drivers/gpu/drm/xe/xe_exec.c index 44364c042ad7..374c831e691b 100644 --- a/drivers/gpu/drm/xe/xe_exec.c +++ b/drivers/gpu/drm/xe/xe_exec.c @@ -237,6 +237,15 @@ int xe_exec_ioctl(struct drm_device *dev, void *data, struct drm_file *file) goto err_unlock_list; } + /* + * It's OK to block interruptible here with the vm lock held, since + * on task freezing during suspend / hibernate, the call will + * return -ERESTARTSYS and the IOCTL will be rerun. + */ + err = wait_for_completion_interruptible(&xe->pm_block); + if (err) + goto err_unlock_list; + vm_exec.vm = &vm->gpuvm; vm_exec.flags = DRM_EXEC_INTERRUPTIBLE_WAIT; if (xe_vm_in_lr_mode(vm)) { diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c index bee9aacd82e7..f4c7a84270ea 100644 --- a/drivers/gpu/drm/xe/xe_pm.c +++ b/drivers/gpu/drm/xe/xe_pm.c @@ -306,6 +306,7 @@ static int xe_pm_notifier_callback(struct notifier_block *nb, switch (action) { case PM_HIBERNATION_PREPARE: case PM_SUSPEND_PREPARE: + reinit_completion(&xe->pm_block); xe_pm_runtime_get(xe); err = xe_bo_evict_all_user(xe); if (err) @@ -322,6 +323,7 @@ static int xe_pm_notifier_callback(struct notifier_block *nb, break; case PM_POST_HIBERNATION: case PM_POST_SUSPEND: + complete_all(&xe->pm_block); xe_bo_notifier_unprepare_all_pinned(xe); xe_pm_runtime_put(xe); break; @@ -348,6 +350,8 @@ int xe_pm_init(struct xe_device *xe) if (err) return err; + init_completion(&xe->pm_block); + complete_all(&xe->pm_block); /* For now suspend/resume is only allowed with GuC */ if (!xe_device_uc_enabled(xe)) return 0; diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 3ff3c67aa79d..edcdb0528f2a 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -394,6 +394,9 @@ static int xe_gpuvm_validate(struct drm_gpuvm_bo *vm_bo, struct drm_exec *exec) list_move_tail(&gpuva_to_vma(gpuva)->combined_links.rebind, &vm->rebind_list); + if (!try_wait_for_completion(&vm->xe->pm_block)) + return -EAGAIN; + ret = xe_bo_validate(gem_to_xe_bo(vm_bo->obj), vm, false); if (ret) return ret; @@ -494,6 +497,12 @@ static void preempt_rebind_work_func(struct work_struct *w) xe_assert(vm->xe, xe_vm_in_preempt_fence_mode(vm)); trace_xe_vm_rebind_worker_enter(vm); + /* + * This blocks the wq during suspend / hibernate. + * Don't hold any locks. + */ +retry_pm: + wait_for_completion(&vm->xe->pm_block); down_write(&vm->lock); if (xe_vm_is_closed_or_banned(vm)) { @@ -503,6 +512,11 @@ static void preempt_rebind_work_func(struct work_struct *w) } retry: + if (!try_wait_for_completion(&vm->xe->pm_block)) { + up_write(&vm->lock); + goto retry_pm; + } + if (xe_vm_userptr_check_repin(vm)) { err = xe_vm_userptr_pin(vm); if (err) -- 2.50.1

2 weeks

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[PATCH v5] mm: slub: avoid wake up kswapd in set_track_prepare

by yangshiguang1011＠163.com

From: yangshiguang <yangshiguang(a)xiaomi.com> From: yangshiguang <yangshiguang(a)xiaomi.com> set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)[n].lock, but when enabled CONFIG_DEBUG_OBJECTS_TIMERS, may wake up kswapd in set_track_prepare, and try to hold the per_cpu(hrtimer_bases)[n].lock. Avoid deadlock caused by implicitly waking up kswapd by passing in allocation flags. And the slab caller context has preemption disabled, so __GFP_DIRECT_RECLAIM must not appear in gfp_flags. The oops looks something like: BUG: spinlock recursion on CPU#3, swapper/3/0 lock: 0xffffff8a4bf29c80, .magic: dead4ead, .owner: swapper/3/0, .owner_cpu: 3 Hardware name: Qualcomm Technologies, Inc. Popsicle based on SM8850 (DT) Call trace: spin_bug+0x0 _raw_spin_lock_irqsave+0x80 hrtimer_try_to_cancel+0x94 task_contending+0x10c enqueue_dl_entity+0x2a4 dl_server_start+0x74 enqueue_task_fair+0x568 enqueue_task+0xac do_activate_task+0x14c ttwu_do_activate+0xcc try_to_wake_up+0x6c8 default_wake_function+0x20 autoremove_wake_function+0x1c __wake_up+0xac wakeup_kswapd+0x19c wake_all_kswapds+0x78 __alloc_pages_slowpath+0x1ac __alloc_pages_noprof+0x298 stack_depot_save_flags+0x6b0 stack_depot_save+0x14 set_track_prepare+0x5c ___slab_alloc+0xccc __kmalloc_cache_noprof+0x470 __set_page_owner+0x2bc post_alloc_hook[jt]+0x1b8 prep_new_page+0x28 get_page_from_freelist+0x1edc __alloc_pages_noprof+0x13c alloc_slab_page+0x244 allocate_slab+0x7c ___slab_alloc+0x8e8 kmem_cache_alloc_noprof+0x450 debug_objects_fill_pool+0x22c debug_object_activate+0x40 enqueue_hrtimer[jt]+0xdc hrtimer_start_range_ns+0x5f8 ... Signed-off-by: yangshiguang <yangshiguang(a)xiaomi.com> Fixes: 5cf909c553e9 ("mm/slub: use stackdepot to save stack trace in objects") Cc: stable(a)vger.kernel.org --- v1 -> v2: propagate gfp flags to set_track_prepare() v2 -> v3: Remove the gfp restriction in set_track_prepare() v3 -> v4: Re-describe the comments in set_track_prepare. v4 -> v5: Modify the patch commit. [1]https://lore.kernel.org/all/20250801065121.876793-1-yangshiguang1011@163.… [2]https://lore.kernel.org/all/20250814111641.380629-2-yangshiguang1011@163.… [3]https://lore.kernel.org/all/20250825121737.2535732-1-yangshiguang1011@163… [4]https://lore.kernel.org/all/20250830020946.1767573-1-yangshiguang1011@163… --- mm/slub.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 30003763d224..b0af51a5321b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -962,19 +962,25 @@ static struct track *get_track(struct kmem_cache *s, void *object, } #ifdef CONFIG_STACKDEPOT -static noinline depot_stack_handle_t set_track_prepare(void) +static noinline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { depot_stack_handle_t handle; unsigned long entries[TRACK_ADDRS_COUNT]; unsigned int nr_entries; + /* + * Preemption is disabled in ___slab_alloc() so we need to disallow + * blocking. The flags are further adjusted by gfp_nested_mask() in + * stack_depot itself. + */ + gfp_flags &= ~(__GFP_DIRECT_RECLAIM); nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 3); - handle = stack_depot_save(entries, nr_entries, GFP_NOWAIT); + handle = stack_depot_save(entries, nr_entries, gfp_flags); return handle; } #else -static inline depot_stack_handle_t set_track_prepare(void) +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } @@ -996,9 +1002,9 @@ static void set_track_update(struct kmem_cache *s, void *object, } static __always_inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) { - depot_stack_handle_t handle = set_track_prepare(); + depot_stack_handle_t handle = set_track_prepare(gfp_flags); set_track_update(s, object, alloc, addr, handle); } @@ -1921,9 +1927,9 @@ static inline bool free_debug_processing(struct kmem_cache *s, static inline void slab_pad_check(struct kmem_cache *s, struct slab *slab) {} static inline int check_object(struct kmem_cache *s, struct slab *slab, void *object, u8 val) { return 1; } -static inline depot_stack_handle_t set_track_prepare(void) { return 0; } +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } static inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) {} + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) {} static inline void add_full(struct kmem_cache *s, struct kmem_cache_node *n, struct slab *slab) {} static inline void remove_full(struct kmem_cache *s, struct kmem_cache_node *n, @@ -3878,7 +3884,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, * tracking info and return the object. */ if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -3910,7 +3916,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto new_objects; if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -4422,7 +4428,7 @@ static noinline void free_to_partial_list( depot_stack_handle_t handle = 0; if (s->flags & SLAB_STORE_USER) - handle = set_track_prepare(); + handle = set_track_prepare(__GFP_NOWARN); spin_lock_irqsave(&n->list_lock, flags); -- 2.43.0

2 weeks

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[PATCH v5] mm: slub: avoid wake up kswapd in set_track_prepare

by yangshiguang1011＠163.com

From: yangshiguang <yangshiguang(a)xiaomi.com> From: yangshiguang <yangshiguang(a)xiaomi.com> set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)[n].lock, but when enabled CONFIG_DEBUG_OBJECTS_TIMERS, may wake up kswapd in set_track_prepare, and try to hold the per_cpu(hrtimer_bases)[n].lock. Avoid deadlock caused by implicitly waking up kswapd by passing in allocation flags. And the slab caller context has preemption disabled, so __GFP_DIRECT_RECLAIM must not appear in gfp_flags. The oops looks something like: BUG: spinlock recursion on CPU#3, swapper/3/0 lock: 0xffffff8a4bf29c80, .magic: dead4ead, .owner: swapper/3/0, .owner_cpu: 3 Hardware name: Qualcomm Technologies, Inc. Popsicle based on SM8850 (DT) Call trace: spin_bug+0x0 _raw_spin_lock_irqsave+0x80 hrtimer_try_to_cancel+0x94 task_contending+0x10c enqueue_dl_entity+0x2a4 dl_server_start+0x74 enqueue_task_fair+0x568 enqueue_task+0xac do_activate_task+0x14c ttwu_do_activate+0xcc try_to_wake_up+0x6c8 default_wake_function+0x20 autoremove_wake_function+0x1c __wake_up+0xac wakeup_kswapd+0x19c wake_all_kswapds+0x78 __alloc_pages_slowpath+0x1ac __alloc_pages_noprof+0x298 stack_depot_save_flags+0x6b0 stack_depot_save+0x14 set_track_prepare+0x5c ___slab_alloc+0xccc __kmalloc_cache_noprof+0x470 __set_page_owner+0x2bc post_alloc_hook[jt]+0x1b8 prep_new_page+0x28 get_page_from_freelist+0x1edc __alloc_pages_noprof+0x13c alloc_slab_page+0x244 allocate_slab+0x7c ___slab_alloc+0x8e8 kmem_cache_alloc_noprof+0x450 debug_objects_fill_pool+0x22c debug_object_activate+0x40 enqueue_hrtimer[jt]+0xdc hrtimer_start_range_ns+0x5f8 ... Signed-off-by: yangshiguang <yangshiguang(a)xiaomi.com> Fixes: 5cf909c553e9 ("mm/slub: use stackdepot to save stack trace in objects") Cc: stable(a)vger.kernel.org --- v1 -> v2: propagate gfp flags to set_track_prepare() v2 -> v3: Remove the gfp restriction in set_track_prepare() v3 -> v4: Re-describe the comments in set_track_prepare. v4 -> v5: Modify the patch commit. [1]https://lore.kernel.org/all/20250801065121.876793-1-yangshiguang1011@163.… [2]https://lore.kernel.org/all/20250814111641.380629-2-yangshiguang1011@163.… [3]https://lore.kernel.org/all/20250825121737.2535732-1-yangshiguang1011@163… [4]https://lore.kernel.org/all/20250830020946.1767573-1-yangshiguang1011@163… --- mm/slub.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 30003763d224..b0af51a5321b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -962,19 +962,25 @@ static struct track *get_track(struct kmem_cache *s, void *object, } #ifdef CONFIG_STACKDEPOT -static noinline depot_stack_handle_t set_track_prepare(void) +static noinline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { depot_stack_handle_t handle; unsigned long entries[TRACK_ADDRS_COUNT]; unsigned int nr_entries; + /* + * Preemption is disabled in ___slab_alloc() so we need to disallow + * blocking. The flags are further adjusted by gfp_nested_mask() in + * stack_depot itself. + */ + gfp_flags &= ~(__GFP_DIRECT_RECLAIM); nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 3); - handle = stack_depot_save(entries, nr_entries, GFP_NOWAIT); + handle = stack_depot_save(entries, nr_entries, gfp_flags); return handle; } #else -static inline depot_stack_handle_t set_track_prepare(void) +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } @@ -996,9 +1002,9 @@ static void set_track_update(struct kmem_cache *s, void *object, } static __always_inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) { - depot_stack_handle_t handle = set_track_prepare(); + depot_stack_handle_t handle = set_track_prepare(gfp_flags); set_track_update(s, object, alloc, addr, handle); } @@ -1921,9 +1927,9 @@ static inline bool free_debug_processing(struct kmem_cache *s, static inline void slab_pad_check(struct kmem_cache *s, struct slab *slab) {} static inline int check_object(struct kmem_cache *s, struct slab *slab, void *object, u8 val) { return 1; } -static inline depot_stack_handle_t set_track_prepare(void) { return 0; } +static inline depot_stack_handle_t set_track_prepare(gfp_t gfp_flags) { return 0; } static inline void set_track(struct kmem_cache *s, void *object, - enum track_item alloc, unsigned long addr) {} + enum track_item alloc, unsigned long addr, gfp_t gfp_flags) {} static inline void add_full(struct kmem_cache *s, struct kmem_cache_node *n, struct slab *slab) {} static inline void remove_full(struct kmem_cache *s, struct kmem_cache_node *n, @@ -3878,7 +3884,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, * tracking info and return the object. */ if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -3910,7 +3916,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto new_objects; if (s->flags & SLAB_STORE_USER) - set_track(s, freelist, TRACK_ALLOC, addr); + set_track(s, freelist, TRACK_ALLOC, addr, gfpflags); return freelist; } @@ -4422,7 +4428,7 @@ static noinline void free_to_partial_list( depot_stack_handle_t handle = 0; if (s->flags & SLAB_STORE_USER) - handle = set_track_prepare(); + handle = set_track_prepare(__GFP_NOWARN); spin_lock_irqsave(&n->list_lock, flags); -- 2.43.0

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[PATCH v2] mm: memory-tiering: fix PGPROMOTE_CANDIDATE counting

by Ruan Shiyang

Goto-san reported confusing pgpromote statistics where the pgpromote_success count significantly exceeded pgpromote_candidate. On a system with three nodes (nodes 0-1: DRAM 4GB, node 2: NVDIMM 4GB): # Enable demotion only echo 1 > /sys/kernel/mm/numa/demotion_enabled numactl -m 0-1 memhog -r200 3500M >/dev/null & pid=$! sleep 2 numactl memhog -r100 2500M >/dev/null & sleep 10 kill -9 $pid # terminate the 1st memhog # Enable promotion echo 2 > /proc/sys/kernel/numa_balancing After a few seconds, we observeed `pgpromote_candidate < pgpromote_success` $ grep -e pgpromote /proc/vmstat pgpromote_success 2579 pgpromote_candidate 0 In this scenario, after terminating the first memhog, the conditions for pgdat_free_space_enough() are quickly met, and triggers promotion. However, these migrated pages are only counted for in PGPROMOTE_SUCCESS, not in PGPROMOTE_CANDIDATE. To solve these confusing statistics, introduce PGPROMOTE_CANDIDATE_NRL to count the missed promotion pages. And also, not counting these pages into PGPROMOTE_CANDIDATE is to avoid changing the existing algorithm or performance of the promotion rate limit. Link: https://lkml.kernel.org/r/20250729035101.1601407-1-ruansy.fnst@fujitsu.com Co-developed-by: Li Zhijian <lizhijian(a)fujitsu.com> Signed-off-by: Ruan Shiyang <ruansy.fnst(a)fujitsu.com> Reported-by: Yasunori Gotou (Fujitsu) <y-goto(a)fujitsu.com> Suggested-by: Huang Ying <ying.huang(a)linux.alibaba.com> Acked-by: Vlastimil Babka <vbabka(a)suse.cz> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Juri Lelli <juri.lelli(a)redhat.com> Cc: Vincent Guittot <vincent.guittot(a)linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann(a)arm.com> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Ben Segall <bsegall(a)google.com> Cc: Mel Gorman <mgorman(a)suse.de> Cc: Valentin Schneider <vschneid(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- Changes since v1: 1. change Li Zhijian from 'Signed-off-by' to 'Co-developed-by' per Vlastimil. 2. add Acked-by: Vlastimil Babka <vbabka(a)suse.cz> --- include/linux/mmzone.h | 16 +++++++++++++++- kernel/sched/fair.c | 5 +++-- mm/vmstat.c | 1 + 3 files changed, 19 insertions(+), 3 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 0c5da9141983..9d3ea9085556 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -234,7 +234,21 @@ enum node_stat_item { #endif #ifdef CONFIG_NUMA_BALANCING PGPROMOTE_SUCCESS, /* promote successfully */ - PGPROMOTE_CANDIDATE, /* candidate pages to promote */ + /** + * Candidate pages for promotion based on hint fault latency. This + * counter is used to control the promotion rate and adjust the hot + * threshold. + */ + PGPROMOTE_CANDIDATE, + /** + * Not rate-limited (NRL) candidate pages for those can be promoted + * without considering hot threshold because of enough free pages in + * fast-tier node. These promotions bypass the regular hotness checks + * and do NOT influence the promotion rate-limiter or + * threshold-adjustment logic. + * This is for statistics/monitoring purposes. + */ + PGPROMOTE_CANDIDATE_NRL, #endif /* PGDEMOTE_*: pages demoted */ PGDEMOTE_KSWAPD, diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b173a059315c..82c8d804c54c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1923,11 +1923,13 @@ bool should_numa_migrate_memory(struct task_struct *p, struct folio *folio, struct pglist_data *pgdat; unsigned long rate_limit; unsigned int latency, th, def_th; + long nr = folio_nr_pages(folio); pgdat = NODE_DATA(dst_nid); if (pgdat_free_space_enough(pgdat)) { /* workload changed, reset hot threshold */ pgdat->nbp_threshold = 0; + mod_node_page_state(pgdat, PGPROMOTE_CANDIDATE_NRL, nr); return true; } @@ -1941,8 +1943,7 @@ bool should_numa_migrate_memory(struct task_struct *p, struct folio *folio, if (latency >= th) return false; - return !numa_promotion_rate_limit(pgdat, rate_limit, - folio_nr_pages(folio)); + return !numa_promotion_rate_limit(pgdat, rate_limit, nr); } this_cpupid = cpu_pid_to_cpupid(dst_cpu, current->pid); diff --git a/mm/vmstat.c b/mm/vmstat.c index 71cd1ceba191..e74f0b2a1021 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1280,6 +1280,7 @@ const char * const vmstat_text[] = { #ifdef CONFIG_NUMA_BALANCING [I(PGPROMOTE_SUCCESS)] = "pgpromote_success", [I(PGPROMOTE_CANDIDATE)] = "pgpromote_candidate", + [I(PGPROMOTE_CANDIDATE_NRL)] = "pgpromote_candidate_nrl", #endif [I(PGDEMOTE_KSWAPD)] = "pgdemote_kswapd", [I(PGDEMOTE_DIRECT)] = "pgdemote_direct", -- 2.43.0

2 weeks

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[PATCH] iommu/intel: Fix __domain_mapping()'s usage of switch_to_super_page()

by Eugene Koira

switch_to_super_page() assumes the memory range it's working on is aligned to the target large page level. Unfortunately, __domain_mapping() doesn't take this into account when using it, and will pass unaligned ranges ultimately freeing a PTE range larger than expected. Take for example a mapping with the following iov_pfn range [0x3fe400, 0x4c0600], which should be backed by the following mappings: iov_pfn [0x3fe400, 0x3fffff] covered by 2MiB pages iov_pfn [0x400000, 0x4bffff] covered by 1GiB pages iov_pfn [0x4c0000, 0x4c05ff] covered by 2MiB pages Under this circumstance, __domain_mapping() will pass [0x400000, 0x4c05ff] to switch_to_super_page() at a 1 GiB granularity, which will in turn free PTEs all the way to iov_pfn 0x4fffff. Mitigate this by rounding down the iov_pfn range passed to switch_to_super_page() in __domain_mapping() to the target large page level. Additionally add range alignment checks to switch_to_super_page. Fixes: 9906b9352a35 ("iommu/vt-d: Avoid duplicate removing in __domain_mapping()") Signed-off-by: Eugene Koira <eugkoira(a)amazon.com> Cc: stable(a)vger.kernel.org --- drivers/iommu/intel/iommu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 9c3ab9d9f69a..dff2d895b8ab 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1575,6 +1575,10 @@ static void switch_to_super_page(struct dmar_domain *domain, unsigned long lvl_pages = lvl_to_nr_pages(level); struct dma_pte *pte = NULL; + if (WARN_ON(!IS_ALIGNED(start_pfn, lvl_pages) || + !IS_ALIGNED(end_pfn + 1, lvl_pages))) + return; + while (start_pfn <= end_pfn) { if (!pte) pte = pfn_to_dma_pte(domain, start_pfn, &level, @@ -1650,7 +1654,8 @@ __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, unsigned long pages_to_remove; pteval |= DMA_PTE_LARGE_PAGE; - pages_to_remove = min_t(unsigned long, nr_pages, + pages_to_remove = min_t(unsigned long, + round_down(nr_pages, lvl_pages), nr_pte_to_next_page(pte) * lvl_pages); end_pfn = iov_pfn + pages_to_remove - 1; switch_to_super_page(domain, iov_pfn, end_pfn, largepage_lvl); -- 2.47.3 Amazon Development Center (Netherlands) B.V., Johanna Westerdijkplein 1, NL-2521 EN The Hague, Registration No. Chamber of Commerce 56869649, VAT: NL 852339859B01

2 weeks

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[PATCH] coresight: trbe: Fix incorrect error check for devm_kzalloc

by Miaoqian Lin

Fix incorrect use of IS_ERR() to check devm_kzalloc() return value. devm_kzalloc() returns NULL on failure, not an error pointer. This issue was introduced by commit 4277f035d227 ("coresight: trbe: Add a representative coresight_platform_data for TRBE") which replaced the original function but didn't update the error check. Fixes: 4277f035d227 ("coresight: trbe: Add a representative coresight_platform_data for TRBE") Cc: stable(a)vger.kernel.org Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com> --- drivers/hwtracing/coresight/coresight-trbe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index 8267dd1a2130..caf873adfc3a 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -1279,7 +1279,7 @@ static void arm_trbe_register_coresight_cpu(struct trbe_drvdata *drvdata, int cp * into the device for that purpose. */ desc.pdata = devm_kzalloc(dev, sizeof(*desc.pdata), GFP_KERNEL); - if (IS_ERR(desc.pdata)) + if (!desc.pdata) goto cpu_clear; desc.type = CORESIGHT_DEV_TYPE_SINK; -- 2.35.1

2 weeks, 1 day

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+ mm-fix-folio_expected_ref_count-when-pg_private_2.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm: fix folio_expected_ref_count() when PG_private_2 has been added to the -mm mm-new branch. Its filename is mm-fix-folio_expected_ref_count-when-pg_private_2.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm: fix folio_expected_ref_count() when PG_private_2 Date: Sun, 31 Aug 2025 02:01:16 -0700 (PDT) 6.16's folio_expected_ref_count() is forgetting the PG_private_2 flag, which (like PG_private, but not in addition to PG_private) counts for 1 more reference: it needs to be using folio_has_private() in place of folio_test_private(). But this went wrong earlier: folio_expected_ref_count() was based on (and replaced) mm/migrate.c's folio_expected_refs(), which has been using folio_test_private() since 6.0 converted to folios(): before that, expected_page_refs() was correctly using page_has_private(). Just a few filesystems are still using PG_private_2 a.k.a. PG_fscache. Potentially, this fix re-enables page migration on their folios; but it would not be surprising to learn that in practice those folios are not migratable for other reasons. Link: https://lkml.kernel.org/r/f91ee36e-a8cb-e3a4-c23b-524ff3848da7@google.com Fixes: 86ebd50224c0 ("mm: add folio_expected_ref_count() for reference count calculation") Fixes: 108ca8358139 ("mm/migrate: Convert expected_page_refs() to folio_expected_refs()") Signed-off-by: Hugh Dickins <hughd(a)google.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: Will Deacon <will(a)kernel.org> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/include/linux/mm.h~mm-fix-folio_expected_ref_count-when-pg_private_2 +++ a/include/linux/mm.h @@ -2234,8 +2234,8 @@ static inline int folio_expected_ref_cou } else { /* One reference per page from the pagecache. */ ref_count += !!folio->mapping << order; - /* One reference from PG_private. */ - ref_count += folio_test_private(folio); + /* One reference from PG_private or PG_private_2. */ + ref_count += folio_has_private(folio); } /* One reference per page table mapping. */ _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

2 weeks, 1 day

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PCI: dwc: Ensure that dw_pcie_wait_for_link() waits 100 ms after link up

by Marek Vasut

Please backport the following commit into Linux v5.4 and newer stable releases: 80dc18a0cba8dea42614f021b20a04354b213d86 The backport will likely depend on macro rename commit: 817f989700fddefa56e5e443e7d138018ca6709d This part of commit description clarifies why this is a fix: " As per PCIe r6.0, sec 6.6.1, a Downstream Port that supports Link speeds greater than 5.0 GT/s, software must wait a minimum of 100 ms after Link training completes before sending a Configuration Request. " In practice, this makes detection of PCIe Gen3 and Gen4 SSDs reliable on Renesas R-Car V4H SoC. Without this commit, the SSDs sporadically do not get detected, or sometimes they link up in Gen1 mode. This fixes commit 886bc5ceb5cc ("PCI: designware: Add generic dw_pcie_wait_for_link()") which is in v4.5-rc1-4-g886bc5ceb5cc3 , so I think this fix should be backported to all currently maintained stable releases, i.e. v5.4+ . Thank you -- Best regards, Marek Vasut

2 weeks, 1 day

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+ mm-folio_may_be_cached-unless-folio_test_large.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm: folio_may_be_cached() unless folio_test_large() has been added to the -mm mm-new branch. Its filename is mm-folio_may_be_cached-unless-folio_test_large.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm: folio_may_be_cached() unless folio_test_large() Date: Sun, 31 Aug 2025 02:16:25 -0700 (PDT) mm/swap.c and mm/mlock.c agree to drain any per-CPU batch as soon as a large folio is added: so collect_longterm_unpinnable_folios() just wastes effort when calling lru_add_drain_all() on a large folio. But although there is good reason not to batch up PMD-sized folios, we might well benefit from batching a small number of low-order mTHPs (though unclear how that "small number" limitation will be implemented). So ask if folio_may_be_cached() rather than !folio_test_large(), to insulate those particular checks from future change. Name preferred to "folio_is_batchable" because large folios can well be put on a batch: it's just the per-CPU LRU caches, drained much later, which need care. Marked for stable, to counter the increase in lru_add_drain_all()s from "mm/gup: check ref_count instead of lru before migration". Link: https://lkml.kernel.org/r/861c061c-51cd-b940-49df-9f55e1fee2c8@google.com Signed-off-by: Hugh Dickins <hughd(a)google.com> Suggested-by: David Hildenbrand <david(a)redhat.com> Cc: <stable(a)vger.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: Will Deacon <will(a)kernel.org> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/swap.h | 10 ++++++++++ mm/gup.c | 5 +++-- mm/mlock.c | 6 +++--- mm/swap.c | 2 +- 4 files changed, 17 insertions(+), 6 deletions(-) --- a/include/linux/swap.h~mm-folio_may_be_cached-unless-folio_test_large +++ a/include/linux/swap.h @@ -381,6 +381,16 @@ void folio_add_lru_vma(struct folio *, s void mark_page_accessed(struct page *); void folio_mark_accessed(struct folio *); +static inline bool folio_may_be_cached(struct folio *folio) +{ + /* + * Holding PMD-sized folios in per-CPU LRU cache unbalances accounting. + * Holding small numbers of low-order mTHP folios in per-CPU LRU cache + * will be sensible, but nobody has implemented and tested that yet. + */ + return !folio_test_large(folio); +} + extern atomic_t lru_disable_count; static inline bool lru_cache_disabled(void) --- a/mm/gup.c~mm-folio_may_be_cached-unless-folio_test_large +++ a/mm/gup.c @@ -2309,8 +2309,9 @@ static unsigned long collect_longterm_un continue; } - if (drain_allow && folio_ref_count(folio) != - folio_expected_ref_count(folio) + 1) { + if (drain_allow && folio_may_be_cached(folio) && + folio_ref_count(folio) != + folio_expected_ref_count(folio) + 1) { lru_add_drain_all(); drain_allow = false; } --- a/mm/mlock.c~mm-folio_may_be_cached-unless-folio_test_large +++ a/mm/mlock.c @@ -255,7 +255,7 @@ void mlock_folio(struct folio *folio) folio_get(folio); if (!folio_batch_add(fbatch, mlock_lru(folio)) || - folio_test_large(folio) || lru_cache_disabled()) + !folio_may_be_cached(folio) || lru_cache_disabled()) mlock_folio_batch(fbatch); local_unlock(&mlock_fbatch.lock); } @@ -278,7 +278,7 @@ void mlock_new_folio(struct folio *folio folio_get(folio); if (!folio_batch_add(fbatch, mlock_new(folio)) || - folio_test_large(folio) || lru_cache_disabled()) + !folio_may_be_cached(folio) || lru_cache_disabled()) mlock_folio_batch(fbatch); local_unlock(&mlock_fbatch.lock); } @@ -299,7 +299,7 @@ void munlock_folio(struct folio *folio) */ folio_get(folio); if (!folio_batch_add(fbatch, folio) || - folio_test_large(folio) || lru_cache_disabled()) + !folio_may_be_cached(folio) || lru_cache_disabled()) mlock_folio_batch(fbatch); local_unlock(&mlock_fbatch.lock); } --- a/mm/swap.c~mm-folio_may_be_cached-unless-folio_test_large +++ a/mm/swap.c @@ -192,7 +192,7 @@ static void __folio_batch_add_and_move(s local_lock(&cpu_fbatches.lock); if (!folio_batch_add(this_cpu_ptr(fbatch), folio) || - folio_test_large(folio) || lru_cache_disabled()) + !folio_may_be_cached(folio) || lru_cache_disabled()) folio_batch_move_lru(this_cpu_ptr(fbatch), move_fn); if (disable_irq) _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

2 weeks, 1 day

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+ mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm: Revert "mm: vmscan.c: fix OOM on swap stress test" has been added to the -mm mm-new branch. Its filename is mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm: Revert "mm: vmscan.c: fix OOM on swap stress test" Date: Sun, 31 Aug 2025 02:13:55 -0700 (PDT) This reverts commit 0885ef4705607936fc36a38fd74356e1c465b023: that was a fix to the reverted 33dfe9204f29b415bbc0abb1a50642d1ba94f5e9. Link: https://lkml.kernel.org/r/bd440614-3d2c-31d6-1b8f-9635c69cef7c@google.com Fixes: 0885ef470560 ("mm: vmscan.c: fix OOM on swap stress test") Signed-off-by: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: Will Deacon <will(a)kernel.org> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/vmscan.c~mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test +++ a/mm/vmscan.c @@ -4500,7 +4500,7 @@ static bool sort_folio(struct lruvec *lr } /* ineligible */ - if (!folio_test_lru(folio) || zone > sc->reclaim_idx) { + if (zone > sc->reclaim_idx) { gen = folio_inc_gen(lruvec, folio, false); list_move_tail(&folio->lru, &lrugen->folios[gen][type][zone]); return true; _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

2 weeks, 1 day

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+ mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm: Revert "mm/gup: clear the LRU flag of a page before adding to LRU batch" has been added to the -mm mm-new branch. Its filename is mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm: Revert "mm/gup: clear the LRU flag of a page before adding to LRU batch" Date: Sun, 31 Aug 2025 02:11:33 -0700 (PDT) This reverts commit 33dfe9204f29b415bbc0abb1a50642d1ba94f5e9: now that collect_longterm_unpinnable_folios() is checking ref_count instead of lru, and mlock/munlock do not participate in the revised LRU flag clearing, those changes are misleading, and enlarge the window during which mlock/munlock may miss an mlock_count update. It is possible (I'd hesitate to claim probable) that the greater likelihood of missed mlock_count updates would explain the "Realtime threads delayed due to kcompactd0" observed on 6.12 in the Link below. If that is the case, this reversion will help; but a complete solution needs also a further patch, beyond the scope of this series. Included some 80-column cleanup around folio_batch_add_and_move(). The role of folio_test_clear_lru() (before taking per-memcg lru_lock) is questionable since 6.13 removed mem_cgroup_move_account() etc; but perhaps there are still some races which need it - not examined here. Link: https://lore.kernel.org/linux-mm/DU0PR01MB10385345F7153F334100981888259A@DU… Link: https://lkml.kernel.org/r/0215a42b-99cd-612a-95f7-56f8251d99ef@google.com Fixes: 33dfe9204f29 ("mm/gup: clear the LRU flag of a page before adding to LRU batch") Signed-off-by: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: Will Deacon <will(a)kernel.org> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/swap.c | 50 ++++++++++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 24 deletions(-) --- a/mm/swap.c~mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch +++ a/mm/swap.c @@ -164,6 +164,10 @@ static void folio_batch_move_lru(struct for (i = 0; i < folio_batch_count(fbatch); i++) { struct folio *folio = fbatch->folios[i]; + /* block memcg migration while the folio moves between lru */ + if (move_fn != lru_add && !folio_test_clear_lru(folio)) + continue; + folio_lruvec_relock_irqsave(folio, &lruvec, &flags); move_fn(lruvec, folio); @@ -176,14 +180,10 @@ static void folio_batch_move_lru(struct } static void __folio_batch_add_and_move(struct folio_batch __percpu *fbatch, - struct folio *folio, move_fn_t move_fn, - bool on_lru, bool disable_irq) + struct folio *folio, move_fn_t move_fn, bool disable_irq) { unsigned long flags; - if (on_lru && !folio_test_clear_lru(folio)) - return; - folio_get(folio); if (disable_irq) @@ -191,8 +191,8 @@ static void __folio_batch_add_and_move(s else local_lock(&cpu_fbatches.lock); - if (!folio_batch_add(this_cpu_ptr(fbatch), folio) || folio_test_large(folio) || - lru_cache_disabled()) + if (!folio_batch_add(this_cpu_ptr(fbatch), folio) || + folio_test_large(folio) || lru_cache_disabled()) folio_batch_move_lru(this_cpu_ptr(fbatch), move_fn); if (disable_irq) @@ -201,13 +201,13 @@ static void __folio_batch_add_and_move(s local_unlock(&cpu_fbatches.lock); } -#define folio_batch_add_and_move(folio, op, on_lru) \ - __folio_batch_add_and_move( \ - &cpu_fbatches.op, \ - folio, \ - op, \ - on_lru, \ - offsetof(struct cpu_fbatches, op) >= offsetof(struct cpu_fbatches, lock_irq) \ +#define folio_batch_add_and_move(folio, op) \ + __folio_batch_add_and_move( \ + &cpu_fbatches.op, \ + folio, \ + op, \ + offsetof(struct cpu_fbatches, op) >= \ + offsetof(struct cpu_fbatches, lock_irq) \ ) static void lru_move_tail(struct lruvec *lruvec, struct folio *folio) @@ -231,10 +231,10 @@ static void lru_move_tail(struct lruvec void folio_rotate_reclaimable(struct folio *folio) { if (folio_test_locked(folio) || folio_test_dirty(folio) || - folio_test_unevictable(folio)) + folio_test_unevictable(folio) || !folio_test_lru(folio)) return; - folio_batch_add_and_move(folio, lru_move_tail, true); + folio_batch_add_and_move(folio, lru_move_tail); } void lru_note_cost_unlock_irq(struct lruvec *lruvec, bool file, @@ -328,10 +328,11 @@ static void folio_activate_drain(int cpu void folio_activate(struct folio *folio) { - if (folio_test_active(folio) || folio_test_unevictable(folio)) + if (folio_test_active(folio) || folio_test_unevictable(folio) || + !folio_test_lru(folio)) return; - folio_batch_add_and_move(folio, lru_activate, true); + folio_batch_add_and_move(folio, lru_activate); } #else @@ -507,7 +508,7 @@ void folio_add_lru(struct folio *folio) lru_gen_in_fault() && !(current->flags & PF_MEMALLOC)) folio_set_active(folio); - folio_batch_add_and_move(folio, lru_add, false); + folio_batch_add_and_move(folio, lru_add); } EXPORT_SYMBOL(folio_add_lru); @@ -685,13 +686,13 @@ void lru_add_drain_cpu(int cpu) void deactivate_file_folio(struct folio *folio) { /* Deactivating an unevictable folio will not accelerate reclaim */ - if (folio_test_unevictable(folio)) + if (folio_test_unevictable(folio) || !folio_test_lru(folio)) return; if (lru_gen_enabled() && lru_gen_clear_refs(folio)) return; - folio_batch_add_and_move(folio, lru_deactivate_file, true); + folio_batch_add_and_move(folio, lru_deactivate_file); } /* @@ -704,13 +705,13 @@ void deactivate_file_folio(struct folio */ void folio_deactivate(struct folio *folio) { - if (folio_test_unevictable(folio)) + if (folio_test_unevictable(folio) || !folio_test_lru(folio)) return; if (lru_gen_enabled() ? lru_gen_clear_refs(folio) : !folio_test_active(folio)) return; - folio_batch_add_and_move(folio, lru_deactivate, true); + folio_batch_add_and_move(folio, lru_deactivate); } /** @@ -723,10 +724,11 @@ void folio_deactivate(struct folio *foli void folio_mark_lazyfree(struct folio *folio) { if (!folio_test_anon(folio) || !folio_test_swapbacked(folio) || + !folio_test_lru(folio) || folio_test_swapcache(folio) || folio_test_unevictable(folio)) return; - folio_batch_add_and_move(folio, lru_lazyfree, true); + folio_batch_add_and_move(folio, lru_lazyfree); } void lru_add_drain(void) _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

2 weeks, 1 day

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+ mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm/gup: local lru_add_drain() to avoid lru_add_drain_all() has been added to the -mm mm-new branch. Its filename is mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm/gup: local lru_add_drain() to avoid lru_add_drain_all() Date: Sun, 31 Aug 2025 02:08:26 -0700 (PDT) In many cases, if collect_longterm_unpinnable_folios() does need to drain the LRU cache to release a reference, the cache in question is on this same CPU, and much more efficiently drained by a preliminary local lru_add_drain(), than the later cross-CPU lru_add_drain_all(). Marked for stable, to counter the increase in lru_add_drain_all()s from "mm/gup: check ref_count instead of lru before migration". Note for clean backports: can take 6.16 commit a03db236aebf ("gup: optimize longterm pin_user_pages() for large folio") first. Link: https://lkml.kernel.org/r/165ccfdb-16b5-ac11-0d66-2984293590c8@google.com Signed-off-by: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: Will Deacon <will(a)kernel.org> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/gup.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/gup.c~mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all +++ a/mm/gup.c @@ -2291,6 +2291,8 @@ static unsigned long collect_longterm_un struct folio *folio; long i = 0; + lru_add_drain(); + for (folio = pofs_get_folio(pofs, i); folio; folio = pofs_next_folio(folio, pofs, &i)) { _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

2 weeks, 1 day

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+ mm-gup-check-ref_count-instead-of-lru-before-migration.patch added to mm-new branch

by Andrew Morton

The patch titled Subject: mm/gup: check ref_count instead of lru before migration has been added to the -mm mm-new branch. Its filename is mm-gup-check-ref_count-instead-of-lru-before-migration.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm/gup: check ref_count instead of lru before migration Date: Sun, 31 Aug 2025 02:05:56 -0700 (PDT) Will Deacon reports:- When taking a longterm GUP pin via pin_user_pages(), __gup_longterm_locked() tries to migrate target folios that should not be longterm pinned, for example because they reside in a CMA region or movable zone. This is done by first pinning all of the target folios anyway, collecting all of the longterm-unpinnable target folios into a list, dropping the pins that were just taken and finally handing the list off to migrate_pages() for the actual migration. It is critically important that no unexpected references are held on the folios being migrated, otherwise the migration will fail and pin_user_pages() will return -ENOMEM to its caller. Unfortunately, it is relatively easy to observe migration failures when running pKVM (which uses pin_user_pages() on crosvm's virtual address space to resolve stage-2 page faults from the guest) on a 6.15-based Pixel 6 device and this results in the VM terminating prematurely. In the failure case, 'crosvm' has called mlock(MLOCK_ONFAULT) on its mapping of guest memory prior to the pinning. Subsequently, when pin_user_pages() walks the page-table, the relevant 'pte' is not present and so the faulting logic allocates a new folio, mlocks it with mlock_folio() and maps it in the page-table. Since commit 2fbb0c10d1e8 ("mm/munlock: mlock_page() munlock_page() batch by pagevec"), mlock/munlock operations on a folio (formerly page), are deferred. For example, mlock_folio() takes an additional reference on the target folio before placing it into a per-cpu 'folio_batch' for later processing by mlock_folio_batch(), which drops the refcount once the operation is complete. Processing of the batches is coupled with the LRU batch logic and can be forcefully drained with lru_add_drain_all() but as long as a folio remains unprocessed on the batch, its refcount will be elevated. This deferred batching therefore interacts poorly with the pKVM pinning scenario as we can find ourselves in a situation where the migration code fails to migrate a folio due to the elevated refcount from the pending mlock operation. Hugh Dickins adds:- !folio_test_lru() has never been a very reliable way to tell if an lru_add_drain_all() is worth calling, to remove LRU cache references to make the folio migratable: the LRU flag may be set even while the folio is held with an extra reference in a per-CPU LRU cache. 5.18 commit 2fbb0c10d1e8 may have made it more unreliable. Then 6.11 commit 33dfe9204f29 ("mm/gup: clear the LRU flag of a page before adding to LRU batch") tried to make it reliable, by moving LRU flag clearing; but missed the mlock/munlock batches, so still unreliable as reported. And it turns out to be difficult to extend 33dfe9204f29's LRU flag clearing to the mlock/munlock batches: if they do benefit from batching, mlock/munlock cannot be so effective when easily suppressed while !LRU. Instead, switch to an expected ref_count check, which was more reliable all along: some more false positives (unhelpful drains) than before, and never a guarantee that the folio will prove migratable, but better. Note for stable backports: requires 6.16 commit 86ebd50224c0 ("mm: add folio_expected_ref_count() for reference count calculation") and 6.17 commit ("mm: fix folio_expected_ref_count() when PG_private_2"). Link: https://lkml.kernel.org/r/47c51c9a-140f-1ea1-b692-c4bae5d1fa58@google.com Fixes: 9a4e9f3b2d73 ("mm: update get_user_pages_longterm to migrate pages allocated from CMA region") Signed-off-by: Hugh Dickins <hughd(a)google.com> Reported-by: Will Deacon <will(a)kernel.org> Link: https://lore.kernel.org/linux-mm/20250815101858.24352-1-will@kernel.org/ Cc: <stable(a)vger.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/gup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/mm/gup.c~mm-gup-check-ref_count-instead-of-lru-before-migration +++ a/mm/gup.c @@ -2307,7 +2307,8 @@ static unsigned long collect_longterm_un continue; } - if (!folio_test_lru(folio) && drain_allow) { + if (drain_allow && folio_ref_count(folio) != + folio_expected_ref_count(folio) + 1) { lru_add_drain_all(); drain_allow = false; } _ Patches currently in -mm which might be from hughd(a)google.com are mm-fix-folio_expected_ref_count-when-pg_private_2.patch mm-gup-check-ref_count-instead-of-lru-before-migration.patch mm-gup-local-lru_add_drain-to-avoid-lru_add_drain_all.patch mm-revert-mm-gup-clear-the-lru-flag-of-a-page-before-adding-to-lru-batch.patch mm-revert-mm-vmscanc-fix-oom-on-swap-stress-test.patch mm-folio_may_be_cached-unless-folio_test_large.patch mm-lru_add_drain_all-do-local-lru_add_drain-first.patch

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+ mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc() has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Uladzislau Rezki (Sony)" <urezki(a)gmail.com> Subject: mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc() Date: Sun, 31 Aug 2025 14:10:58 +0200 kasan_populate_vmalloc() and its helpers ignore the caller's gfp_mask and always allocate memory using the hardcoded GFP_KERNEL flag. This makes them inconsistent with vmalloc(), which was recently extended to support GFP_NOFS and GFP_NOIO allocations. Page table allocations performed during shadow population also ignore the external gfp_mask. To preserve the intended semantics of GFP_NOFS and GFP_NOIO, wrap the apply_to_page_range() calls into the appropriate memalloc scope. This patch: - Extends kasan_populate_vmalloc() and helpers to take gfp_mask; - Passes gfp_mask down to alloc_pages_bulk() and __get_free_page(); - Enforces GFP_NOFS/NOIO semantics with memalloc_*_save()/restore() around apply_to_page_range(); - Updates vmalloc.c and percpu allocator call sites accordingly. Link: https://lkml.kernel.org/r/20250831121058.92971-1-urezki@gmail.com Fixes: 451769ebb7e7 ("mm/vmalloc: alloc GFP_NO{FS,IO} for vmalloc") Signed-off-by: Uladzislau Rezki (Sony) <urezki(a)gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a(a)gmail.com> Cc: Baoquan He <bhe(a)redhat.com> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Alexander Potapenko <glider(a)google.com> Cc: Andrey Konovalov <andreyknvl(a)gmail.com> Cc: Dmitry Vyukov <dvyukov(a)google.com> Cc: Vincenzo Frascino <vincenzo.frascino(a)arm.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/kasan.h | 6 +++--- mm/kasan/shadow.c | 31 ++++++++++++++++++++++++------- mm/vmalloc.c | 8 ++++---- 3 files changed, 31 insertions(+), 14 deletions(-) --- a/include/linux/kasan.h~mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc +++ a/include/linux/kasan.h @@ -562,7 +562,7 @@ static inline void kasan_init_hw_tags(vo #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) void kasan_populate_early_vm_area_shadow(void *start, unsigned long size); -int kasan_populate_vmalloc(unsigned long addr, unsigned long size); +int kasan_populate_vmalloc(unsigned long addr, unsigned long size, gfp_t gfp_mask); void kasan_release_vmalloc(unsigned long start, unsigned long end, unsigned long free_region_start, unsigned long free_region_end, @@ -574,7 +574,7 @@ static inline void kasan_populate_early_ unsigned long size) { } static inline int kasan_populate_vmalloc(unsigned long start, - unsigned long size) + unsigned long size, gfp_t gfp_mask) { return 0; } @@ -610,7 +610,7 @@ static __always_inline void kasan_poison static inline void kasan_populate_early_vm_area_shadow(void *start, unsigned long size) { } static inline int kasan_populate_vmalloc(unsigned long start, - unsigned long size) + unsigned long size, gfp_t gfp_mask) { return 0; } --- a/mm/kasan/shadow.c~mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc +++ a/mm/kasan/shadow.c @@ -336,13 +336,13 @@ static void ___free_pages_bulk(struct pa } } -static int ___alloc_pages_bulk(struct page **pages, int nr_pages) +static int ___alloc_pages_bulk(struct page **pages, int nr_pages, gfp_t gfp_mask) { unsigned long nr_populated, nr_total = nr_pages; struct page **page_array = pages; while (nr_pages) { - nr_populated = alloc_pages_bulk(GFP_KERNEL, nr_pages, pages); + nr_populated = alloc_pages_bulk(gfp_mask, nr_pages, pages); if (!nr_populated) { ___free_pages_bulk(page_array, nr_total - nr_pages); return -ENOMEM; @@ -354,25 +354,42 @@ static int ___alloc_pages_bulk(struct pa return 0; } -static int __kasan_populate_vmalloc(unsigned long start, unsigned long end) +static int __kasan_populate_vmalloc(unsigned long start, unsigned long end, gfp_t gfp_mask) { unsigned long nr_pages, nr_total = PFN_UP(end - start); struct vmalloc_populate_data data; + unsigned int flags; int ret = 0; - data.pages = (struct page **)__get_free_page(GFP_KERNEL | __GFP_ZERO); + data.pages = (struct page **)__get_free_page(gfp_mask | __GFP_ZERO); if (!data.pages) return -ENOMEM; while (nr_total) { nr_pages = min(nr_total, PAGE_SIZE / sizeof(data.pages[0])); - ret = ___alloc_pages_bulk(data.pages, nr_pages); + ret = ___alloc_pages_bulk(data.pages, nr_pages, gfp_mask); if (ret) break; data.start = start; + + /* + * page tables allocations ignore external gfp mask, enforce it + * by the scope API + */ + if ((gfp_mask & (__GFP_FS | __GFP_IO)) == __GFP_IO) + flags = memalloc_nofs_save(); + else if ((gfp_mask & (__GFP_FS | __GFP_IO)) == 0) + flags = memalloc_noio_save(); + ret = apply_to_page_range(&init_mm, start, nr_pages * PAGE_SIZE, kasan_populate_vmalloc_pte, &data); + + if ((gfp_mask & (__GFP_FS | __GFP_IO)) == __GFP_IO) + memalloc_nofs_restore(flags); + else if ((gfp_mask & (__GFP_FS | __GFP_IO)) == 0) + memalloc_noio_restore(flags); + ___free_pages_bulk(data.pages, nr_pages); if (ret) break; @@ -386,7 +403,7 @@ static int __kasan_populate_vmalloc(unsi return ret; } -int kasan_populate_vmalloc(unsigned long addr, unsigned long size) +int kasan_populate_vmalloc(unsigned long addr, unsigned long size, gfp_t gfp_mask) { unsigned long shadow_start, shadow_end; int ret; @@ -415,7 +432,7 @@ int kasan_populate_vmalloc(unsigned long shadow_start = PAGE_ALIGN_DOWN(shadow_start); shadow_end = PAGE_ALIGN(shadow_end); - ret = __kasan_populate_vmalloc(shadow_start, shadow_end); + ret = __kasan_populate_vmalloc(shadow_start, shadow_end, gfp_mask); if (ret) return ret; --- a/mm/vmalloc.c~mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc +++ a/mm/vmalloc.c @@ -2026,6 +2026,8 @@ static struct vmap_area *alloc_vmap_area if (unlikely(!vmap_initialized)) return ERR_PTR(-EBUSY); + /* Only reclaim behaviour flags are relevant. */ + gfp_mask = gfp_mask & GFP_RECLAIM_MASK; might_sleep(); /* @@ -2038,8 +2040,6 @@ static struct vmap_area *alloc_vmap_area */ va = node_alloc(size, align, vstart, vend, &addr, &vn_id); if (!va) { - gfp_mask = gfp_mask & GFP_RECLAIM_MASK; - va = kmem_cache_alloc_node(vmap_area_cachep, gfp_mask, node); if (unlikely(!va)) return ERR_PTR(-ENOMEM); @@ -2089,7 +2089,7 @@ retry: BUG_ON(va->va_start < vstart); BUG_ON(va->va_end > vend); - ret = kasan_populate_vmalloc(addr, size); + ret = kasan_populate_vmalloc(addr, size, gfp_mask); if (ret) { free_vmap_area(va); return ERR_PTR(ret); @@ -4826,7 +4826,7 @@ retry: /* populate the kasan shadow space */ for (area = 0; area < nr_vms; area++) { - if (kasan_populate_vmalloc(vas[area]->va_start, sizes[area])) + if (kasan_populate_vmalloc(vas[area]->va_start, sizes[area], GFP_KERNEL)) goto err_free_shadow; } _ Patches currently in -mm which might be from urezki(a)gmail.com are mm-vmalloc-mm-kasan-respect-gfp-mask-in-kasan_populate_vmalloc.patch

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+ ocfs2-fix-recursive-semaphore-deadlock-in-fiemap-call.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: ocfs2: fix recursive semaphore deadlock in fiemap call has been added to the -mm mm-hotfixes-unstable branch. Its filename is ocfs2-fix-recursive-semaphore-deadlock-in-fiemap-call.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Mark Tinguely <mark.tinguely(a)oracle.com> Subject: ocfs2: fix recursive semaphore deadlock in fiemap call Date: Fri, 29 Aug 2025 10:18:15 -0500 syzbot detected a OCFS2 hang due to a recursive semaphore on a FS_IOC_FIEMAP of the extent list on a specially crafted mmap file. context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0x165/0x360 kernel/sched/core.c:7058 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115 rwsem_down_write_slowpath+0x872/0xfe0 kernel/locking/rwsem.c:1185 __down_write_common kernel/locking/rwsem.c:1317 [inline] __down_write kernel/locking/rwsem.c:1326 [inline] down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1591 ocfs2_page_mkwrite+0x2ff/0xc40 fs/ocfs2/mmap.c:142 do_page_mkwrite+0x14d/0x310 mm/memory.c:3361 wp_page_shared mm/memory.c:3762 [inline] do_wp_page+0x268d/0x5800 mm/memory.c:3981 handle_pte_fault mm/memory.c:6068 [inline] __handle_mm_fault+0x1033/0x5440 mm/memory.c:6195 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] RIP: 0010:raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] RIP: 0010:_inline_copy_to_user include/linux/uaccess.h:197 [inline] RIP: 0010:_copy_to_user+0x85/0xb0 lib/usercopy.c:26 Code: e8 00 bc f7 fc 4d 39 fc 72 3d 4d 39 ec 77 38 e8 91 b9 f7 fc 4c 89 f7 89 de e8 47 25 5b fd 0f 01 cb 4c 89 ff 48 89 d9 4c 89 f6 <f3> a4 0f 1f 00 48 89 cb 0f 01 ca 48 89 d8 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc9000403f950 EFLAGS: 00050256 RAX: ffffffff84c7f101 RBX: 0000000000000038 RCX: 0000000000000038 RDX: 0000000000000000 RSI: ffffc9000403f9e0 RDI: 0000200000000060 RBP: ffffc9000403fa90 R08: ffffc9000403fa17 R09: 1ffff92000807f42 R10: dffffc0000000000 R11: fffff52000807f43 R12: 0000200000000098 R13: 00007ffffffff000 R14: ffffc9000403f9e0 R15: 0000200000000060 copy_to_user include/linux/uaccess.h:225 [inline] fiemap_fill_next_extent+0x1c0/0x390 fs/ioctl.c:145 ocfs2_fiemap+0x888/0xc90 fs/ocfs2/extent_map.c:806 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1173/0x1430 fs/ioctl.c:532 __do_sys_ioctl fs/ioctl.c:596 [inline] __se_sys_ioctl+0x82/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5f13850fd9 RSP: 002b:00007ffe3b3518b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f5f13850fd9 RDX: 0000200000000040 RSI: 00000000c020660b RDI: 0000000000000004 RBP: 6165627472616568 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3b3518f0 R13: 00007ffe3b351b18 R14: 431bde82d7b634db R15: 00007f5f1389a03b ocfs2_fiemap() takes a read lock of the ip_alloc_sem semaphore (since v2.6.22-527-g7307de80510a) and calls fiemap_fill_next_extent() to read the extent list of this running mmap executable. The user supplied buffer to hold the fiemap information page faults calling ocfs2_page_mkwrite() which will take a write lock (since v2.6.27-38-g00dc417fa3e7) of the same semaphore. This recursive semaphore will hold filesystem locks and causes a hang of the fileystem. The ip_alloc_sem protects the inode extent list and size. Release the read semphore before calling fiemap_fill_next_extent() in ocfs2_fiemap() and ocfs2_fiemap_inline(). This does an unnecessary semaphore lock/unlock on the last extent but simplifies the error path. Link: https://lkml.kernel.org/r/61d1a62b-2631-4f12-81e2-cd689914360b@oracle.com Fixes: 00dc417fa3e7 ("ocfs2: fiemap support") Signed-off-by: Mark Tinguely <mark.tinguely(a)oracle.com> Reported-by: syzbot+541dcc6ee768f77103e7(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=541dcc6ee768f77103e7 Reviewed-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Jun Piao <piaojun(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/extent_map.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) --- a/fs/ocfs2/extent_map.c~ocfs2-fix-recursive-semaphore-deadlock-in-fiemap-call +++ a/fs/ocfs2/extent_map.c @@ -706,6 +706,8 @@ out: * it not only handles the fiemap for inlined files, but also deals * with the fast symlink, cause they have no difference for extent * mapping per se. + * + * Must be called with ip_alloc_sem semaphore held. */ static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh, struct fiemap_extent_info *fieinfo, @@ -717,6 +719,7 @@ static int ocfs2_fiemap_inline(struct in u64 phys; u32 flags = FIEMAP_EXTENT_DATA_INLINE|FIEMAP_EXTENT_LAST; struct ocfs2_inode_info *oi = OCFS2_I(inode); + lockdep_assert_held_read(&oi->ip_alloc_sem); di = (struct ocfs2_dinode *)di_bh->b_data; if (ocfs2_inode_is_fast_symlink(inode)) @@ -732,8 +735,11 @@ static int ocfs2_fiemap_inline(struct in phys += offsetof(struct ocfs2_dinode, id2.i_data.id_data); + /* Release the ip_alloc_sem to prevent deadlock on page fault */ + up_read(&OCFS2_I(inode)->ip_alloc_sem); ret = fiemap_fill_next_extent(fieinfo, 0, phys, id_count, flags); + down_read(&OCFS2_I(inode)->ip_alloc_sem); if (ret < 0) return ret; } @@ -802,9 +808,11 @@ int ocfs2_fiemap(struct inode *inode, st len_bytes = (u64)le16_to_cpu(rec.e_leaf_clusters) << osb->s_clustersize_bits; phys_bytes = le64_to_cpu(rec.e_blkno) << osb->sb->s_blocksize_bits; virt_bytes = (u64)le32_to_cpu(rec.e_cpos) << osb->s_clustersize_bits; - + /* Release the ip_alloc_sem to prevent deadlock on page fault */ + up_read(&OCFS2_I(inode)->ip_alloc_sem); ret = fiemap_fill_next_extent(fieinfo, virt_bytes, phys_bytes, len_bytes, fe_flags); + down_read(&OCFS2_I(inode)->ip_alloc_sem); if (ret) break; _ Patches currently in -mm which might be from mark.tinguely(a)oracle.com are ocfs2-fix-recursive-semaphore-deadlock-in-fiemap-call.patch

2 weeks, 1 day

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[PATCH v2] uio_hv_generic: Let userspace take care of interrupt mask

by Naman Jain

Remove the logic to set interrupt mask by default in uio_hv_generic driver as the interrupt mask value is supposed to be controlled completely by the user space. If the mask bit gets changed by the driver, concurrently with user mode operating on the ring, the mask bit may be set when it is supposed to be clear, and the user-mode driver will miss an interrupt which will cause a hang. For eg- when the driver sets inbound ring buffer interrupt mask to 1, the host does not interrupt the guest on the UIO VMBus channel. However, setting the mask does not prevent the host from putting a message in the inbound ring buffer. So let’s assume that happens, the host puts a message into the ring buffer but does not interrupt. Subsequently, the user space code in the guest sets the inbound ring buffer interrupt mask to 0, saying “Hey, I’m ready for interrupts”. User space code then calls pread() to wait for an interrupt. Then one of two things happens: * The host never sends another message. So the pread() waits forever. * The host does send another message. But because there’s already a message in the ring buffer, it doesn’t generate an interrupt. This is the correct behavior, because the host should only send an interrupt when the inbound ring buffer transitions from empty to not-empty. Adding an additional message to a ring buffer that is not empty is not supposed to generate an interrupt on the guest. Since the guest is waiting in pread() and not removing messages from the ring buffer, the pread() waits forever. This could be easily reproduced in hv_fcopy_uio_daemon if we delay setting interrupt mask to 0. Similarly if hv_uio_channel_cb() sets the interrupt_mask to 1, there’s a race condition. Once user space empties the inbound ring buffer, but before user space sets interrupt_mask to 0, the host could put another message in the ring buffer but it wouldn’t interrupt. Then the next pread() would hang. Fix these by removing all instances where interrupt_mask is changed, while keeping the one in set_event() unchanged to enable userspace control the interrupt mask by writing 0/1 to /dev/uioX. Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Suggested-by: John Starks <jostarks(a)microsoft.com> Signed-off-by: Naman Jain <namjain(a)linux.microsoft.com> Cc: <stable(a)vger.kernel.org> --- Changes since v1: https://lore.kernel.org/all/20250818064846.271294-1-namjain@linux.microsoft… * Added Fixes and Cc stable tags. --- drivers/uio/uio_hv_generic.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index f19efad4d6f8..3f8e2e27697f 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -111,7 +111,6 @@ static void hv_uio_channel_cb(void *context) struct hv_device *hv_dev; struct hv_uio_private_data *pdata; - chan->inbound.ring_buffer->interrupt_mask = 1; virt_mb(); /* @@ -183,8 +182,6 @@ hv_uio_new_channel(struct vmbus_channel *new_sc) return; } - /* Disable interrupts on sub channel */ - new_sc->inbound.ring_buffer->interrupt_mask = 1; set_channel_read_mode(new_sc, HV_CALL_ISR); ret = hv_create_ring_sysfs(new_sc, hv_uio_ring_mmap); if (ret) { @@ -227,9 +224,7 @@ hv_uio_open(struct uio_info *info, struct inode *inode) ret = vmbus_connect_ring(dev->channel, hv_uio_channel_cb, dev->channel); - if (ret == 0) - dev->channel->inbound.ring_buffer->interrupt_mask = 1; - else + if (ret) atomic_dec(&pdata->refcnt); return ret; -- 2.34.1

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[PATCH 6.16 000/457] 6.16.4-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.16.4 release. There are 457 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu, 28 Aug 2025 11:08:27 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.16.4-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.16.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.16.4-rc1 Christoph Manszewski <christoph.manszewski(a)intel.com> drm/xe: Fix vm_bind_ioctl double free bug Piotr Piórkowski <piotr.piorkowski(a)intel.com> drm/xe: Move ASID allocation and user PT BO tracking into xe_vm_create Florian Westphal <fw(a)strlen.de> netfilter: nf_reject: don't leak dst refcount for loopback packets Peter Oberparleiter <oberpar(a)linux.ibm.com> s390/hypfs: Enable limited access during lockdown Peter Oberparleiter <oberpar(a)linux.ibm.com> s390/hypfs: Avoid unnecessary ioctl registration in debugfs Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Use correct sub-type for UAC3 feature unit validation Armen Ratner <armeng(a)nvidia.com> net/mlx5e: Preserve shared buffer capacity during headroom updates Alexei Lazar <alazar(a)nvidia.com> net/mlx5e: Query FW for buffer ownership Oren Sidi <osidi(a)nvidia.com> net/mlx5: Add IFC bits and enums for buf_ownership Daniel Jurgens <danielj(a)nvidia.com> net/mlx5: Base ECVF devlink port attrs from 0 Hariprasad Kelam <hkelam(a)marvell.com> Octeontx2-af: Skip overlap check for SPI field Nilay Shroff <nilay(a)linux.ibm.com> block: avoid cpu_hotplug_lock depedency on freeze_lock Nilay Shroff <nilay(a)linux.ibm.com> block: skip q->rq_qos check in rq_qos_done_bio() Nilay Shroff <nilay(a)linux.ibm.com> block: decrement block_rq_qos static key in rq_qos_del() Ming Lei <ming.lei(a)redhat.com> blk-mq: fix lockdep warning in __blk_mq_update_nr_hw_queues Nilay Shroff <nilay(a)linux.ibm.com> block: fix potential deadlock while running nr_hw_queue update Nilay Shroff <nilay(a)linux.ibm.com> block: fix lockdep warning caused by lock dependency in elv_iosched_store Nilay Shroff <nilay(a)linux.ibm.com> block: move elevator queue allocation logic into blk_mq_init_sched Lorenzo Bianconi <lorenzo(a)kernel.org> net: airoha: ppe: Do not invalid PPE entries in case of SW hash collision Hangbin Liu <liuhangbin(a)gmail.com> bonding: send LACPDUs periodically in passive mode after receiving partner's LACPDU Hangbin Liu <liuhangbin(a)gmail.com> bonding: update LACP activity flag after setting lacp_active Dewei Meng <mengdewei(a)cqsoftware.com.cn> ALSA: timer: fix ida_free call while not allocated William Liu <will(a)willsroot.io> net/sched: Remove unnecessary WARNING condition for empty child qdisc in htb_activate William Liu <will(a)willsroot.io> net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit Tristram Ha <tristram.ha(a)microchip.com> net: dsa: microchip: Fix KSZ9477 HSR port setup issue ValdikSS <iam(a)valdikss.org.ru> igc: fix disabling L1.2 PCI-E link substate on I226 on init Jason Xing <kernelxing(a)tencent.com> ixgbe: xsk: resolve the negative overflow of budget in ixgbe_xmit_zc Song Gao <gaosong(a)loongson.cn> LoongArch: KVM: Use kvm_get_vcpu_by_id() instead of kvm_get_vcpu() Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Use standard bitops API with eiointc Heiko Carstens <hca(a)linux.ibm.com> s390/mm: Do not map lowcore with identity mapping Stefan Binding <sbinding(a)opensource.cirrus.com> ASoC: cs35l56: Remove SoundWire Clock Divider workaround for CS35L63 Richard Fitzgerald <rf(a)opensource.cirrus.com> ASoC: cs35l56: Handle new algorithms IDs for CS35L63 Stefan Binding <sbinding(a)opensource.cirrus.com> ASoC: cs35l56: Update Firmware Addresses for CS35L63 for production silicon Kanglong Wang <wangkanglong(a)loongson.cn> LoongArch: Optimize module load time by optimizing PLT/GOT counting Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: Pass annotate-tablejump option if LTO is enabled Tiezhu Yang <yangtiezhu(a)loongson.cn> objtool/LoongArch: Get table size correctly if LTO is enabled Parthiban Veerasooran <parthiban.veerasooran(a)microchip.com> microchip: lan865x: fix missing Timer Increment config for Rev.B0/B1 Parthiban Veerasooran <parthiban.veerasooran(a)microchip.com> microchip: lan865x: fix missing netif_start_queue() call on device open Vlad Dogaru <vdogaru(a)nvidia.com> net/mlx5: CT: Use the correct counter offset Alex Vesker <valex(a)nvidia.com> net/mlx5: HWS, Fix table creation UID Yevgeny Kliteynik <kliteyn(a)nvidia.com> net/mlx5: HWS, fix complex rules rehash error flow Yevgeny Kliteynik <kliteyn(a)nvidia.com> net/mlx5: HWS, fix bad parameter in CQ creation D. Wythe <alibuda(a)linux.alibaba.com> net/smc: fix UAF on smcsk after smc_listen_out() Yao Zi <ziyao(a)disroot.org> net: stmmac: thead: Enable TX clock before MAC initialization Jordan Rhee <jordanrhee(a)google.com> gve: prevent ethtool ops after shutdown Yuichiro Tsuji <yuichtsu(a)amazon.com> net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Horatiu Vultur <horatiu.vultur(a)microchip.com> phy: mscc: Fix timestamping for vsc8584 David Howells <dhowells(a)redhat.com> cifs: Fix oops due to uninitialised variable Dan Carpenter <dan.carpenter(a)linaro.org> regulator: tps65219: regulator: tps65219: Fix error codes in probe() Piotr Piórkowski <piotr.piorkowski(a)intel.com> drm/xe: Assign ioctl xe file handler to vm in xe_vm_create MD Danish Anwar <danishanwar(a)ti.com> net: ti: icssg-prueth: Fix HSR and switch offload Enablement during firwmare reload. Qingfang Deng <dqfext(a)gmail.com> ppp: fix race conditions in ppp_fill_forward_path Qingfang Deng <dqfext(a)gmail.com> net: ethernet: mtk_ppe: add RCU lock around dev_fill_forward_path Nitin Rawat <quic_nitirawa(a)quicinc.com> scsi: ufs: ufs-qcom: Fix ESI null pointer dereference Bao D. Nguyen <quic_nguyenb(a)quicinc.com> scsi: ufs: ufs-qcom: Update esi_vec_mask for HW major version >= 6 Bart Van Assche <bvanassche(a)acm.org> scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl() Bart Van Assche <bvanassche(a)acm.org> scsi: ufs: core: Fix IRQ lock inversion for the SCSI host lock Michael Chan <michael.chan(a)broadcom.com> bnxt_en: Fix lockdep warning during rmmod Minhong He <heminhong(a)kylinos.cn> ipv6: sr: validate HMAC algorithm ID in seg6_hmac_info_add Jakub Ramaseuski <jramaseu(a)redhat.com> net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Don't print errors for nonexistent connectors Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Adjust DCE 8-10 clock, don't overclock by 15% Chenyuan Yang <chenyuan0y(a)gmail.com> drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session() Peng Fan <peng.fan(a)nxp.com> regulator: pca9450: Use devm_register_sys_off_handler Dan Carpenter <dan.carpenter(a)linaro.org> ALSA: usb-audio: Fix size validation in convert_chmap_v3() Baihan Li <libaihan(a)huawei.com> drm/hisilicon/hibmc: fix dp and vga cannot show together Baihan Li <libaihan(a)huawei.com> drm/hisilicon/hibmc: fix rare monitors cannot display problem Baihan Li <libaihan(a)huawei.com> drm/hisilicon/hibmc: fix the hibmc loaded failed bug Baihan Li <libaihan(a)huawei.com> drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local Baihan Li <libaihan(a)huawei.com> drm/hisilicon/hibmc: fix the i2c device resource leak when vdac init failed Miguel Ojeda <ojeda(a)kernel.org> rust: alloc: fix `rusttest` by providing `Cmalloc::aligned_layout` too Zheng Qixing <zhengqixing(a)huawei.com> md: fix sync_action incorrect display during resync Zheng Qixing <zhengqixing(a)huawei.com> md: add helper rdev_needs_recovery() Li Nan <linan122(a)huawei.com> md: rename recovery_cp to resync_offset Miguel Ojeda <ojeda(a)kernel.org> drm: nova-drm: fix 32-bit arm build Ido Schimmel <idosch(a)nvidia.com> mlxsw: spectrum: Forward packets with an IPv4 link-local source IP Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_core: Fix not accounting for BIS/CIS/PA links separately Yang Li <yang.li(a)amlogic.com> Bluetooth: Add PA_LINK to distinguish BIG sync and PA sync connections Sergey Shtylyov <s.shtylyov(a)omp.ru> Bluetooth: hci_conn: do return error from hci_enhanced_setup_sync() Pauli Virtanen <pav(a)iki.fi> Bluetooth: hci_event: fix MTU for BN == 0 in CIS Established Yang Li <yang.li(a)amlogic.com> Bluetooth: hci_sync: Prevent unintended PA sync when SID is 0xFF Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_core: Fix using ll_privacy_capable for current settings Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_core: Fix using {cis,bis}_capable for current settings Jiande Lu <jiande.lu(a)mediatek.com> Bluetooth: btmtk: Fix wait_on_bit_timeout interruption during shutdown Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_sync: Fix scan state after PA Sync has been established Kees Cook <kees(a)kernel.org> iommu/amd: Avoid stack buffer overflow from kernel cmdline Dan Carpenter <dan.carpenter(a)linaro.org> scsi: qla4xxx: Prevent a potential error pointer dereference Justin Lai <justinlai0215(a)realtek.com> rtase: Fix Rx descriptor CRC error bit definition William Liu <will(a)willsroot.io> net/sched: Fix backlog accounting in qdisc_dequeue_internal Wang Liang <wangliang74(a)huawei.com> net: bridge: fix soft lockup in br_multicast_query_expired() Suraj Gupta <suraj.gupta2(a)amd.com> net: xilinx: axienet: Fix RX skb ring management in DMAengine mode Junxian Huang <huangjunxian6(a)hisilicon.com> RDMA/hns: Fix dip entries leak on devices newer than hip09 Akhilesh Patil <akhilesh(a)ee.iitb.ac.in> RDMA/core: Free pfn_list with appropriate kvfree call Anantha Prabhu <anantha.prabhu(a)broadcom.com> RDMA/bnxt_re: Fix to initialize the PBL array Kalesh AP <kalesh-anakkur.purayil(a)broadcom.com> RDMA/bnxt_re: Fix a possible memory leak in the driver Kashyap Desai <kashyap.desai(a)broadcom.com> RDMA/bnxt_re: Fix to remove workload check in SRQ limit path Kashyap Desai <kashyap.desai(a)broadcom.com> RDMA/bnxt_re: Fix to do SRQ armena by default wenglianfa <wenglianfa(a)huawei.com> RDMA/hns: Fix querying wrong SCC context for DIP algorithm Boshi Yu <boshiyu(a)linux.alibaba.com> RDMA/erdma: Fix unset QPN of GSI QP Boshi Yu <boshiyu(a)linux.alibaba.com> RDMA/erdma: Fix ignored return value of init_kernel_qp Suma Hegde <suma.hegde(a)amd.com> platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL Jocelyn Falempe <jfalempe(a)redhat.com> drm/panic: Add a u64 divide by 10 for arm32 Danilo Krummrich <dakr(a)kernel.org> rust: drm: don't pass the address of drm::Device to drm_dev_put() Danilo Krummrich <dakr(a)kernel.org> rust: drm: remove pin annotations from drm::Device Danilo Krummrich <dakr(a)kernel.org> rust: drm: ensure kmalloc() compatible Layout Danilo Krummrich <dakr(a)kernel.org> rust: alloc: replace aligned_size() with Kmalloc::aligned_layout() Nitin Gote <nitin.r.gote(a)intel.com> iosys-map: Fix undefined behavior in iosys_map_clear() José Expósito <jose.exposito89(a)gmail.com> drm/tests: Fix drm_test_fb_xrgb8888_to_xrgb2101010() on big-endian Thomas Zimmermann <tzimmermann(a)suse.de> drm/tests: Do not use drm_fb_blit() in format-helper tests José Expósito <jose.exposito89(a)gmail.com> drm/tests: Fix endian warning Waiman Long <longman(a)redhat.com> cgroup/cpuset: Fix a partition error with CPU hotplug Waiman Long <longman(a)redhat.com> cgroup/cpuset: Use static_branch_enable_cpuslocked() on cpusets_insane_config_key Fanhua Li <lifanhua5(a)huawei.com> drm/nouveau/nvif: Fix potential memory leak in nvif_vmm_ctor(). Gabor Juhos <j4g8y7(a)gmail.com> spi: spi-qpic-snand: fix calculating of ECC OOB regions' properties Stefan Wahren <wahrenst(a)gmx.net> spi: spi-fsl-lpspi: Clamp too high speed_hz Gabor Juhos <j4g8y7(a)gmail.com> spi: spi-qpic-snand: use correct CW_PER_PAGE value for OOB write Jean-Baptiste Maneyrol <jean-baptiste.maneyrol(a)tdk.com> iio: imu: inv_icm42600: change invalid data error to -EBUSY Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> iio: imu: inv_icm42600: Convert to uXX and sXX integer types David Lechner <dlechner(a)baylibre.com> iio: imu: inv_icm42600: use = { } instead of memset() Jedrzej Jagielski <jedrzej.jagielski(a)intel.com> ixgbe: prevent from unwanted interface name changes Jedrzej Jagielski <jedrzej.jagielski(a)intel.com> devlink: let driver opt out of automatic phys_port_name generation Sven Eckelmann <sven(a)narfation.org> i2c: rtl9300: Add missing count byte for SMBus Block Ops Sven Eckelmann <sven(a)narfation.org> i2c: rtl9300: Increase timeout for transfer polling Harshal Gohel <hg(a)simonwunderlich.de> i2c: rtl9300: Fix multi-byte I2C write Alex Guo <alexguo1023(a)gmail.com> i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer Tianxiang Peng <txpeng(a)tencent.com> x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper Yazen Ghannam <yazen.ghannam(a)amd.com> x86/CPU/AMD: Ignore invalid reset reason value Jakub Kicinski <kuba(a)kernel.org> tls: fix handling of zero-length records on the rx_list Niklas Cassel <cassel(a)kernel.org> PCI: dwc: Ensure that dw_pcie_wait_for_link() waits 100 ms after link up NeilBrown <neil(a)brown.name> ovl: use I_MUTEX_PARENT when locking parent in ovl_create_temp() Pu Lehui <pulehui(a)huawei.com> tracing: Limit access to parser->buffer when trace_get_user failed Steven Rostedt <rostedt(a)goodmis.org> tracing: Remove unneeded goto out logic Heikki Krogerus <heikki.krogerus(a)linux.intel.com> usb: dwc3: pci: add support for the Intel Wildcat Lake Selvarasu Ganesan <selvarasu.g(a)samsung.com> usb: dwc3: Remove WARN_ON for device endpoint command timeouts Kuen-Han Tsai <khtsai(a)google.com> usb: dwc3: Ignore late xferNotReady event to prevent halt timeout Niklas Neronin <niklas.neronin(a)linux.intel.com> usb: xhci: fix host not responding after suspend and resume Weitao Wang <WeitaoWang-oc(a)zhaoxin.com> usb: xhci: Fix slot_id resource race conflict Amit Sunil Dhamne <amitsd(a)google.com> usb: typec: maxim_contaminant: re-enable cc toggle if cc is open and port is clean Amit Sunil Dhamne <amitsd(a)google.com> usb: typec: maxim_contaminant: disable low power mode when reading comparator values Zenm Chen <zenmchen(a)gmail.com> USB: storage: Ignore driver CD mode for Realtek multi-mode Wi-Fi dongles Thorsten Blum <thorsten.blum(a)linux.dev> usb: storage: realtek_cr: Use correct byte order for bcs->Residue Mael GUERIN <mael.guerin(a)murena.io> USB: storage: Add unusual-devs entry for Novatek NTK96550-based camera Marek Vasut <marek.vasut+renesas(a)mailbox.org> usb: renesas-xhci: Fix External ROM access timeouts Xu Yang <xu.yang_2(a)nxp.com> usb: core: hcd: fix accessing unmapped memory in SINGLE_STEP_SET_FEATURE test Ian Abbott <abbotti(a)mev.co.uk> comedi: Fix use of uninitialized memory in do_insn_ioctl() and do_insnlist_ioctl() Edward Adam Davis <eadavis(a)qq.com> comedi: pcl726: Prevent invalid irq number Ian Abbott <abbotti(a)mev.co.uk> comedi: Make insn_rw_emulate_bits() do insn->n samples Miao Li <limiao(a)kylinos.cn> usb: quirks: Add DELAY_INIT quick for another SanDisk 3.2Gen1 Flash Drive Thorsten Blum <thorsten.blum(a)linux.dev> cdx: Fix off-by-one error in cdx_rpmsg_probe() Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> kcov, usb: Don't disable interrupts in kcov_remote_start_usb_softirq() Miaoqian Lin <linmq006(a)gmail.com> most: core: Drop device reference after usage in get_channel() Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> iio: adc: rzg2l: Cleanup suspend/resume path David Lechner <dlechner(a)baylibre.com> iio: proximity: isl29501: fix buffered read on big-endian systems David Lechner <dlechner(a)baylibre.com> iio: adc: ad7173: prevent scan if too many setups requested Matti Vaittinen <mazziesaccount(a)gmail.com> iio: adc: bd79124: Add GPIOLIB dependency Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> iio: adc: rzg2l_adc: Set driver data before enabling runtime PM Salah Triki <salah.triki(a)gmail.com> iio: pressure: bmp280: Use IS_ERR() in bmp280_common_probe() Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: light: as73211: Ensure buffer holes are zeroed David Lechner <dlechner(a)baylibre.com> iio: adc: ad7124: fix channel lookup in syscalib functions David Lechner <dlechner(a)baylibre.com> iio: temperature: maxim_thermocouple: use DMA-safe buffer for spi_read() Steven Rostedt <rostedt(a)goodmis.org> ftrace: Also allocate and copy hash for reading of filter files David Lechner <dlechner(a)baylibre.com> iio: accel: sca3300: fix uninitialized iio scan data David Lechner <dlechner(a)baylibre.com> iio: adc: ad7380: fix missing max_conversion_rate_hz on adaq4381-4 Xu Yilun <yilun.xu(a)linux.intel.com> fpga: zynq_fpga: Fix the wrong usage of dma_map_sgtable() Imre Deak <imre.deak(a)intel.com> drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Restore cached manual clock settings during resume Robin Murphy <robin.murphy(a)arm.com> iommu/virtio: Make instance lookup robust Jason Gunthorpe <jgg(a)ziepe.ca> iommu: Remove ops.pgsize_bitmap from drivers that don't use it Al Viro <viro(a)zeniv.linux.org.uk> use uniform permission checks for all mount propagation changes Adrian Huang (Lenovo) <adrianhuang0701(a)gmail.com> signal: Fix memory leak for PIDFD_SELF* sentinels Ye Bin <yebin10(a)huawei.com> fs/buffer: fix use-after-free when call bh_read() helper Stefan Metzmacher <metze(a)samba.org> smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy() Christian Brauner <brauner(a)kernel.org> libfs: massage path_from_stashed() to allow custom stashing behavior Thomas Bertschinger <tahbertschinger(a)gmail.com> fhandle: do_handle_open() should get FD with user flags Naohiro Aota <naohiro.aota(a)wdc.com> btrfs: zoned: fix data relocation block group reservation Yuntao Wang <yuntao.wang(a)linux.dev> fs: fix incorrect lflags value in the move_mount syscall Charalampos Mitrodimas <charmitro(a)posteo.net> debugfs: fix mount options not being applied Miguel Ojeda <ojeda(a)kernel.org> rust: faux: fix C header link Christoph Hellwig <hch(a)lst.de> xfs: fix frozen file system assert in xfs_trans_alloc Dan Carpenter <dan.carpenter(a)linaro.org> soc: qcom: mdt_loader: Fix error return values in mdt_header_valid() Liu01 Tong <Tong.Liu01(a)amd.com> drm/amdgpu: fix task hang from failed job submission during process kill Geraldo Nascimento <geraldogabriel(a)gmail.com> PCI: rockchip: Set Target Link Speed to 5.0 GT/s before retraining Geraldo Nascimento <geraldogabriel(a)gmail.com> PCI: rockchip: Use standard PCIe definitions Ranjan Kumar <ranjan.kumar(a)broadcom.com> scsi: mpi3mr: Serialize admin queue BAR writes on 32-bit systems Ranjan Kumar <ranjan.kumar(a)broadcom.com> scsi: mpi3mr: Drop unnecessary volatile from __iomem pointers Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Fill display clock and vblank time in dce110_fill_display_configs Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Find first CRTC and its line time in dce110_fill_display_configs Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Fix DP audio DTO1 clock source on DCE 6. Tom Chung <chiahsuan.chung(a)amd.com> drm/amd/display: Fix Xorg desktop unresponsive on Replay panel Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Fix fractional fb divider in set_pixel_clock_v3 Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Don't overclock DCE 6 by 15% Mario Limonciello <mario.limonciello(a)amd.com> drm/amd/display: Avoid a NULL pointer dereference Imre Deak <imre.deak(a)intel.com> drm/i915/icl+/tc: Convert AUX powered WARN to a debug message Imre Deak <imre.deak(a)intel.com> drm/i915/lnl+/tc: Use the cached max lane count value Imre Deak <imre.deak(a)intel.com> drm/i915/lnl+/tc: Fix max lane count HW readout Imre Deak <imre.deak(a)intel.com> drm/i915/icl+/tc: Cache the max lane count value Imre Deak <imre.deak(a)intel.com> drm/i915/lnl+/tc: Fix handling of an enabled/disconnected dp-alt sink Sebastian Brzezinka <sebastian.brzezinka(a)intel.com> drm/i915/gt: Relocate compression repacking WA for JSL/EHL Qianfeng Rong <rongqianfeng(a)vivo.com> drm/nouveau/gsp: fix mismatched alloc/free for kvmalloc() Jani Nikula <jani.nikula(a)intel.com> drm/i915: silence rpm wakeref asserts on GEN11_GU_MISC_IIR access Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu/swm14: Update power limit logic Thorsten Blum <thorsten.blum(a)linux.dev> accel/habanalabs/gaudi2: Use kvfree() for memory allocated with kvcalloc() Jan Beulich <jbeulich(a)suse.com> compiler: remove __ADDRESSABLE_ASM{_STR,}() again Srinivas Pandruvada <srinivas.pandruvada(a)linux.intel.com> platform/x86/intel-uncore-freq: Check write blocked for ELC Peter Oberparleiter <oberpar(a)linux.ibm.com> s390/sclp: Fix SCCB present check Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Flush delayed SKBs while releasing RXE resources Evgeniy Harchenko <evgeniyharchenko.dev(a)gmail.com> ALSA: hda/realtek: Add support for HP EliteBook x360 830 G6 and EliteBook 830 G6 Takashi Iwai <tiwai(a)suse.de> ALSA: hda: tas2781: Fix wrong reference of tasdevice_priv David Hildenbrand <david(a)redhat.com> mm/mremap: fix WARN with uffd that has remap events disabled Jinjiang Tu <tujinjiang(a)huawei.com> mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn Herton R. Krzesinski <herton(a)redhat.com> mm/debug_vm_pgtable: clear page table entries at destroy_args() Sang-Heon Jeon <ekffu200098(a)gmail.com> mm/damon/core: fix damos_commit_filter not changing allow Phillip Lougher <phillip(a)squashfs.org.uk> squashfs: fix memory leak in squashfs_fill_super Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Fix a race when updating an existing write Judith Mendez <jm(a)ti.com> mmc: sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1 Victor Shih <victor.shih(a)genesyslogic.com.tw> mmc: sdhci-pci-gli: GL9763e: Rename the gli_set_gl9763e() for consistency Victor Shih <victor.shih(a)genesyslogic.com.tw> mmc: sdhci-pci-gli: GL9763e: Mask the replay timer timeout of AER Jiayi Li <lijiayi(a)kylinos.cn> memstick: Fix deadlock by moving removing flag earlier Pasha Tatashin <pasha.tatashin(a)soleen.com> kho: warn if KHO is disabled due to an error Pasha Tatashin <pasha.tatashin(a)soleen.com> kho: mm: don't allow deferred struct page with KHO Pasha Tatashin <pasha.tatashin(a)soleen.com> kho: init new_physxa->phys_bits to fix lockdep Victor Shih <victor.shih(a)genesyslogic.com.tw> mmc: sdhci-pci-gli: Add a new function to simplify the code Sai Krishna Potthuri <sai.krishna.potthuri(a)amd.com> mmc: sdhci-of-arasan: Ensure CD logic stabilization before power-up Sang-Heon Jeon <ekffu200098(a)gmail.com> mm/damon/core: fix commit_ops_filters by using correct nth function Nicolin Chen <nicolinc(a)nvidia.com> iommu/arm-smmu-v3: Fix smmu_domain->nr_ats_masters decrement Dominique Martinet <asmadeus(a)codewreck.org> iov_iter: iterate_folioq: fix handling of offset >= folio size Jens Axboe <axboe(a)kernel.dk> io_uring/futex: ensure io_futex_wait() cleans up properly on failure XianLiang Huang <huangxianliang(a)lanxincomputing.com> iommu/riscv: prevent NULL deref in iova_to_phys Eric Biggers <ebiggers(a)kernel.org> crypto: acomp - Fix CFI failure due to type punning Geert Uytterhoeven <geert+renesas(a)glider.be> erofs: Do not select tristate symbols from bool symbols Bo Liu (OpenAnolis) <liubo03(a)inspur.com> erofs: fix build error with CONFIG_EROFS_FS_ZIP_ACCEL=y Alan Huang <mmpgouride(a)gmail.com> xfs: Remove unused label in xfs_dax_notify_dev_failure Christoph Hellwig <hch(a)lst.de> xfs: fully decouple XFS_IBULK* flags from XFS_IWALK* flags Christoph Hellwig <hch(a)lst.de> xfs: improve the comments in xfs_select_zone_nowait Christoph Hellwig <hch(a)lst.de> xfs: return the allocated transaction from xfs_trans_alloc_empty Christoph Hellwig <hch(a)lst.de> xfs: decouple xfs_trans_alloc_empty from xfs_trans_alloc Naohiro Aota <naohiro.aota(a)wdc.com> btrfs: subpage: keep TOWRITE tag until folio is cleaned Qu Wenruo <wqu(a)suse.com> btrfs: rename btrfs_subpage structure Qu Wenruo <wqu(a)suse.com> btrfs: add comments on the extra btrfs specific subpage bitmaps Leo Martins <loemra.dev(a)gmail.com> btrfs: fix subpage deadlock in try_release_subpage_extent_buffer() Filipe Manana <fdmanana(a)suse.com> btrfs: use refcount_t type for the extent buffer reference counter Filipe Manana <fdmanana(a)suse.com> btrfs: add comment for optimization in free_extent_buffer() Filipe Manana <fdmanana(a)suse.com> btrfs: reorganize logic at free_extent_buffer() for better readability Filipe Manana <fdmanana(a)suse.com> btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() Filipe Manana <fdmanana(a)suse.com> btrfs: always abort transaction on failure to add block group to free space tree David Sterba <dsterba(a)suse.com> btrfs: move transaction aborts to the error site in add_block_group_free_space() SeongJae Park <sj(a)kernel.org> mm/damon/ops-common: ignore migration request to invalid nodes Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: sockopt: fix C23 extension warning Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: connect: fix C23 extension warning Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: pm: check flush doesn't reset limits Geliang Tang <geliang(a)kernel.org> mptcp: disable add_addr retransmission when timeout is 0 Geliang Tang <geliang(a)kernel.org> mptcp: remove duplicate sk_reset_timer call Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: pm: kernel: flush: do not reset ADD_ADDR limit Christoph Paasch <cpaasch(a)openai.com> mptcp: drop skb if MPTCP skb extension allocation fails Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> ACPI: APEI: EINJ: Fix resource leak by remove callback in .exit.text Chen Yu <yu.c.chen(a)intel.com> ACPI: pfr_update: Fix the driver update version check Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> cpuidle: governors: menu: Avoid selecting states with too much latency JP Kobryn <inwardvessel(a)gmail.com> cgroup: avoid null de-ref in css_rstat_exit() Eric Biggers <ebiggers(a)kernel.org> ipv6: sr: Fix MAC comparison to be constant-time Andrea Righi <arighi(a)nvidia.com> sched/ext: Fix invalid task state transitions on class switch Jakub Acs <acsjakub(a)amazon.de> net, hsr: reject HSR frame if skb can't hold tag Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Add address alignment check in pch_pic register access Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Fix stack protector issue in send_ipi_data() Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Make function kvm_own_lbt() robust Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Don't overwrite dce60_clk_mgr Mario Limonciello <mario.limonciello(a)amd.com> drm/amd/display: Revert "drm/amd/display: Fix AMDGPU_MAX_BL_LEVEL value" Mario Limonciello <mario.limonciello(a)amd.com> drm/amd/display: Pass up errors for reset GPU that fails to init HW Lauri Tirkkonen <lauri(a)hacktheplanet.fi> drm/amd/display: fix initial backlight brightness calculation Timur Kristóf <timur.kristof(a)gmail.com> drm/amd/display: Fix DCE 6.0 and 6.4 PLL programming. Siyang Liu <Security(a)tencent.com> drm/amd/display: fix a Null pointer dereference vulnerability Michel Dänzer <mdaenzer(a)redhat.com> drm/amd/display: Add primary plane to commits for correct VRR handling David Yat Sin <David.YatSin(a)amd.com> drm/amdkfd: Fix checkpoint-restore on multi-xcc Amber Lin <Amber.Lin(a)amd.com> drm/amdkfd: Destroy KFD debugfs after destroy KFD wq Lijo Lazar <lijo.lazar(a)amd.com> drm/amdgpu: Update supported modes for GC v9.5.0 Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: update mmhub 4.1.0 client id mappings Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: update mmhub 3.3 client id mappings Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: update mmhub 3.0.1 client id mappings Lijo Lazar <lijo.lazar(a)amd.com> drm/amdgpu: Update external revid for GC v9.5.0 Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: track whether a queue is a kernel queue in amdgpu_mqd_prop YuanShang <YuanShang.Mao(a)amd.com> drm/amdgpu: Retain job->vm in amdgpu_job_prepare_job Nathan Chancellor <nathan(a)kernel.org> drm/amdgpu: Initialize data to NULL in imu_v12_0_program_rlc_ram() Peter Shkenev <mustela(a)erminea.space> drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities Gang Ba <Gang.Ba(a)amd.com> drm/amdgpu: Avoid extra evict-restore process. Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: add missing vram lost check for LEGACY RESET Frank Min <Frank.Min(a)amd.com> drm/amdgpu: add kicker fws loading for gfx12/smu14/psp14 Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Restore cached power limit during resume Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu/discovery: fix fw based ip discovery Yang Wang <kevinyang.wang(a)amd.com> drm/amd/amdgpu: fix missing lock for cper.ring->rptr/wptr access Thomas Hellström <thomas.hellstrom(a)linux.intel.com> drm/xe: Defer buffer object shrinker write-backs and GPU waits Vodapalli, Ravi Kumar <ravi.kumar.vodapalli(a)intel.com> drm/xe/bmg: Add one additional PCI ID Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Remove unnecessary re-initialization of flush completion Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Verify internal buffer release on close Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Update CAPTURE format info based on OUTPUT format Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Track flush responses to prevent premature completion Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Skip flush on first sequence change Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Skip destroying internal buffer if not dequeued Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Send V4L2_BUF_FLAG_ERROR for capture buffers with 0 filled length Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Remove error check for non-zero v4l2 controls Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Remove deprecated property setting to firmware Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Prevent HFI queue writes when core is in deinit state Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Fix typo in depth variable Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Fix NULL pointer dereference Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Fix missing function pointer initialization Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Fix buffer preparation failure during resolution change Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Drop port check for session property response Dikshita Agarwal <quic_dikshita(a)quicinc.com> media: iris: Avoid updating frame size to firmware during reconfig Ricardo Ribalda <ribalda(a)chromium.org> media: venus: venc: Clamp param smaller than 1fps and bigger than 240 Ricardo Ribalda <ribalda(a)chromium.org> media: venus: vdec: Clamp param smaller than 1fps and bigger than 240. Jorge Ramirez-Ortiz <jorge.ramirez(a)oss.qualcomm.com> media: venus: protect against spurious interrupts during probe Jorge Ramirez-Ortiz <jorge.ramirez(a)oss.qualcomm.com> media: venus: hfi: explicitly release IRQ during teardown Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> media: venus: Fix MSM8998 frequency table Vedang Nagar <quic_vnagar(a)quicinc.com> media: venus: Add a check for packet size after reading from shared memory Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> media: qcom: camss: Remove extraneous -supply postfix on supply names Vladimir Zapolskiy <vladimir.zapolskiy(a)linaro.org> media: qcom: camss: cleanup media device allocated resource on error path Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> media: qcom: camss: csiphy-3ph: Fix inadvertent dropping of SDM660/SDM670 phy init Hans de Goede <hansg(a)kernel.org> media: ivsc: Fix crash at shutdown due to missing mei_cldev_disable() calls Mathis Foerst <mathis.foerst(a)mt.com> media: mt9m114: Fix deadlock in get_frame_interval/set_frame_interval Zhang Shurong <zhang_shurong(a)foxmail.com> media: ov2659: Fix memory leaks in ov2659_probe() Jacopo Mondi <jacopo.mondi(a)ideasonboard.com> media: pisp_be: Fix pm_runtime underrun in probe Gui-Dong Han <hanguidong02(a)gmail.com> media: rainshadow-cec: fix TOCTOU race condition in rain_interrupt() Ludwig Disterhof <ludwig(a)disterhof.eu> media: usbtv: Lock resolution while streaming Sakari Ailus <sakari.ailus(a)linux.intel.com> media: v4l2-ctrls: Don't reset handler's error in v4l2_ctrl_handler_free() Nicolas Dufresne <nicolas.dufresne(a)collabora.com> media: verisilicon: Fix AV1 decoder clock frequency Hans Verkuil <hverkuil(a)xs4all.nl> media: vivid: fix wrong pixel_array control size Sakari Ailus <sakari.ailus(a)linux.intel.com> media: ipu6: isys: Use correct pads for xlate_streams() Haoxiang Li <haoxiang_li2024(a)163.com> media: imx: fix a potential memory leak in imx_media_csc_scaler_device_init() Bingbu Cao <bingbu.cao(a)intel.com> media: hi556: correct the test pattern configuration Dan Carpenter <dan.carpenter(a)linaro.org> media: gspca: Add bounds checking to firmware parser John David Anglin <dave.anglin(a)bell.net> parisc: Update comments in make_insert_tlb John David Anglin <dave.anglin(a)bell.net> parisc: Try to fixup kernel exception in bad_area_nosemaphore path of do_page_fault() John David Anglin <dave.anglin(a)bell.net> parisc: Revise gateway LWS calls to probe user read access John David Anglin <dave.anglin(a)bell.net> parisc: Revise __get_user() to probe user read access John David Anglin <dave.anglin(a)bell.net> parisc: Rename pte_needs_flush() to pte_needs_cache_flush() in cache.c Randy Dunlap <rdunlap(a)infradead.org> parisc: Makefile: explain that 64BIT requires both 32-bit and 64-bit compilers John David Anglin <dave.anglin(a)bell.net> parisc: Drop WARN_ON_ONCE() from flush_cache_vmap John David Anglin <dave.anglin(a)bell.net> parisc: Define and use set_pte_at() John David Anglin <dave.anglin(a)bell.net> parisc: Check region is readable by user in raw_copy_from_user() Jon Hunter <jonathanh(a)nvidia.com> soc/tegra: pmc: Ensure power-domains are in a known state Jialin Wang <wjl.linux(a)gmail.com> proc: proc_maps_open allow proc_mem_open to return NULL Aleksa Sarai <cyphar(a)cyphar.com> open_tree_attr: do not allow id-mapping changes without OPEN_TREE_CLONE Simon Richter <Simon.Richter(a)hogyros.de> Mark xe driver as BROKEN if kernel page size is not 4kB Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> kbuild: userprogs: use correct linker when mixing clang and GNU ld Jann Horn <jannh(a)google.com> kasan/test: fix protection against compiler elision Baokun Li <libaokun1(a)huawei.com> jbd2: prevent softlockup in jbd2_log_do_checkpoint() Jan Kara <jack(a)suse.cz> iomap: Fix broken data integrity guarantees for O_SYNC writes Kathiravan Thirumoorthy <kathiravan.thirumoorthy(a)oss.qualcomm.com> i2c: qcom-geni: fix I2C frequency table to achieve accurate bus rates Chao Yu <chao(a)kernel.org> f2fs: fix to avoid out-of-boundary access in dnode page Julian Sun <sunjunchao2870(a)gmail.com> block: restore default wbt enablement Muhammad Usama Anjum <usama.anjum(a)collabora.com> ASoC: SOF: amd: acp-loader: Use GFP_KERNEL for DMA allocations in resume context Xaver Hugl <xaver.hugl(a)kde.org> amdgpu/amdgpu_discovery: increase timeout limit for IFWI init Kathiravan Thirumoorthy <kathiravan.thirumoorthy(a)oss.qualcomm.com> phy: qcom: phy-qcom-m31: Update IPQ5332 M31 USB phy initialization sequence Will Deacon <will(a)kernel.org> vhost/vsock: Avoid allocating arbitrarily-sized SKBs Will Deacon <will(a)kernel.org> vsock/virtio: Validate length in packet header before skb_put() Richard Zhu <hongxing.zhu(a)nxp.com> PCI: imx6: Delay link start until configfs 'start' written Richard Zhu <hongxing.zhu(a)nxp.com> PCI: imx6: Remove apps_reset toggling from imx_pcie_{assert/deassert}_core_reset Richard Zhu <hongxing.zhu(a)nxp.com> PCI: imx6: Add IMX8MM_EP and IMX8MP_EP fixed 256-byte BAR 4 in epc_features Richard Zhu <hongxing.zhu(a)nxp.com> PCI: imx6: Add IMX8MQ_EP third 64-bit BAR in epc_features Damien Le Moal <dlemoal(a)kernel.org> PCI: endpoint: Fix configfs group removal on driver teardown Damien Le Moal <dlemoal(a)kernel.org> PCI: endpoint: Fix configfs group list head handling Jiwei Sun <sunjw10(a)lenovo.com> PCI: Fix link speed calculation on retrain failure Lukas Wunner <lukas(a)wunner.de> PCI/portdrv: Use is_pciehp instead of is_hotplug_bridge Chi Zhiling <chizhiling(a)kylinos.cn> readahead: fix return value of page_cache_next_miss() when no hole is found Dmitry Torokhov <dmitry.torokhov(a)gmail.com> mfd: mt6397: Do not use generic name for keypad sub-devices Thomas Fourier <fourier.thomas(a)gmail.com> mtd: rawnand: renesas: Add missing check after DMA map Thomas Fourier <fourier.thomas(a)gmail.com> mtd: rawnand: fsmc: Add missing check after DMA map Gabor Juhos <j4g8y7(a)gmail.com> mtd: spinand: propagate spinand_wait() errors from spinand_write_page() Michael Walle <mwalle(a)kernel.org> mtd: spi-nor: Fix spi_nor_try_unlock_all() Tim Harvey <tharvey(a)gateworks.com> hwmon: (gsc-hwmon) fix fan pwm setpoint show functions Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> pwm: mediatek: Fix duty and period setting Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> pwm: mediatek: Handle hardware enable and clock enable separately Laurentiu Mihalcea <laurentiu.mihalcea(a)nxp.com> pwm: imx-tpm: Reset counter if CMOD is 0 Johan Hovold <johan+linaro(a)kernel.org> wifi: ath11k: fix dest ring-buffer corruption when ring is full Johan Hovold <johan+linaro(a)kernel.org> wifi: ath11k: fix source ring-buffer corruption Johan Hovold <johan+linaro(a)kernel.org> wifi: ath11k: fix dest ring-buffer corruption Johan Hovold <johan+linaro(a)kernel.org> wifi: ath12k: fix dest ring-buffer corruption when ring is full Johan Hovold <johan+linaro(a)kernel.org> wifi: ath12k: fix source ring-buffer corruption Johan Hovold <johan+linaro(a)kernel.org> wifi: ath12k: fix dest ring-buffer corruption Nathan Chancellor <nathan(a)kernel.org> wifi: brcmsmac: Remove const from tbl_ptr parameter in wlc_lcnphy_common_read_table() David Lechner <dlechner(a)baylibre.com> iio: adc: ad7173: fix setting ODR in probe David Lechner <dlechner(a)baylibre.com> iio: adc: ad7173: fix calibration channel David Lechner <dlechner(a)baylibre.com> iio: adc: ad7173: fix channels index for syscalib_mode David Lechner <dlechner(a)baylibre.com> iio: adc: ad_sigma_delta: change to buffer predisable David Lechner <dlechner(a)baylibre.com> iio: imu: bno055: fix OOB access of hw_xlate array Marek Szyprowski <m.szyprowski(a)samsung.com> zynq_fpga: use sgtable-based scatterlist wrappers Bjorn Andersson <bjorn.andersson(a)oss.qualcomm.com> soc: qcom: mdt_loader: Ensure we don't read past the ELF header Igor Pylypiv <ipylypiv(a)google.com> ata: libata-scsi: Fix CDL control Adrian Hunter <adrian.hunter(a)intel.com> scsi: ufs: ufs-pci: Fix default runtime and system PM levels Archana Patni <archana.patni(a)intel.com> scsi: ufs: ufs-pci: Fix hibernate state transition for Intel MTL-like host controllers Damien Le Moal <dlemoal(a)kernel.org> ata: libata-scsi: Return aborted command when missing sense and result TF Damien Le Moal <dlemoal(a)kernel.org> ata: libata-scsi: Fix ata_to_sense_error() status handling Ranjan Kumar <ranjan.kumar(a)broadcom.com> scsi: mpi3mr: Fix race between config read submit and interrupt completion André Draszik <andre.draszik(a)linaro.org> scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE Macpaul Lin <macpaul.lin(a)mediatek.com> scsi: dt-bindings: mediatek,ufs: Add ufs-disable-mcq flag for UFS host Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> dt-bindings: display: vop2: Add optional PLL clock property for rk3576 Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> dt-bindings: display: sprd,sharkl3-dsi-host: Fix missing clocks constraints Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> dt-bindings: display: sprd,sharkl3-dpu: Fix missing clocks constraints Helge Deller <deller(a)gmx.de> apparmor: Fix 8-byte alignment for initial dfa blob streams Sam Edwards <cfsworks(a)gmail.com> arm64: dts: rockchip: Remove workaround that prevented Turing RK1 GPU power regulator control Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> arm64: dts: ti: k3-am62-verdin: Enable pull-ups on I2C buses Kaustabh Chakraborty <kauschluss(a)disroot.org> arm64: dts: exynos7870-on7xelte: reduce memory ranges to base amount Judith Mendez <jm(a)ti.com> arm64: dts: ti: k3-am62*: Move eMMC pinmux to top level board file Hong Guan <hguan(a)ti.com> arm64: dts: ti: k3-am62a7-sk: fix pinmux for main_uart1 Peter Griffin <peter.griffin(a)linaro.org> arm64: dts: exynos: gs101: ufs: add dma-coherent property Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> arm64: dts: rockchip: Enable HDMI PHY clk provider on rk3576 Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> arm64: dts: rockchip: Add HDMI PHY PLL clock source to VOP2 on rk3576 Kaustabh Chakraborty <kauschluss(a)disroot.org> arm64: dts: exynos7870: add quirk to disable USB2 LPM in gadget mode Alexander Sverdlin <alexander.sverdlin(a)gmail.com> arm64: dts: ti: k3-pinctrl: Enable Schmitt Trigger by default Kaustabh Chakraborty <kauschluss(a)disroot.org> arm64: dts: exynos7870-j6lte: reduce memory ranges to base amount Judith Mendez <jm(a)ti.com> arm64: dts: ti: k3-am62-main: Remove eMMC High Speed DDR support Nick Chan <towinchenmi(a)gmail.com> arm64: dts: apple: t8012-j132: Include touchbar framebuffer node Kyoji Ogasawara <sawara04.o(a)gmail.com> btrfs: fix printing of mount info messages for NODATACOW/NODATASUM Kyoji Ogasawara <sawara04.o(a)gmail.com> btrfs: restore mount option info messages during mount Kyoji Ogasawara <sawara04.o(a)gmail.com> btrfs: fix incorrect log message for nobarrier mount option Naohiro Aota <naohiro.aota(a)wdc.com> btrfs: zoned: fix write time activation failure for metadata block group Zhang Yi <yi.zhang(a)huawei.com> ext4: fix hole length calculation overflow in non-extent inodes Liao Yuanhong <liaoyuanhong(a)vivo.com> ext4: use kmalloc_array() for array space allocation Theodore Ts'o <tytso(a)mit.edu> ext4: don't try to clear the orphan_present feature block device is r/o Ojaswin Mujoo <ojaswin(a)linux.ibm.com> ext4: fix reserved gdt blocks handling in fsmap Ojaswin Mujoo <ojaswin(a)linux.ibm.com> ext4: fix fsmap end of range reporting with bigalloc Andreas Dilger <adilger(a)dilger.ca> ext4: check fast symlink for ea_inode correctly Baokun Li <libaokun1(a)huawei.com> ext4: preserve SB_I_VERSION on remount Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: fprobe-event: Sanitize wildcard for fprobe event name Namjae Jeon <linkinjeon(a)kernel.org> ksmbd: extend the connection limiting mechanism to support IPv6 Ziyan Xu <ziyan(a)securitygossip.com> ksmbd: fix refcount leak causing resource not released Helge Deller <deller(a)gmx.de> Revert "vgacon: Add check for vc_origin address range in vgacon_scroll()" Herbert Xu <herbert(a)gondor.apana.org.au> crypto: hash - Increase HASH_MAX_DESCSIZE for hmac(sha3-224-s390) Bharat Bhushan <bbhushan2(a)marvell.com> crypto: octeontx2 - Fix address alignment on CN10KB and CN10KA-B0 Bharat Bhushan <bbhushan2(a)marvell.com> crypto: octeontx2 - Fix address alignment on CN10K A0/A1 and OcteonTX2 Bharat Bhushan <bbhushan2(a)marvell.com> crypto: octeontx2 - Fix address alignment issue on ucode loading Eric Biggers <ebiggers(a)kernel.org> crypto: x86/aegis - Add missing error checks Eric Biggers <ebiggers(a)kernel.org> crypto: x86/aegis - Fix sleeping when disallowed on PREEMPT_RT Giovanni Cabiddu <giovanni.cabiddu(a)intel.com> crypto: qat - flush misc workqueue during device shutdown John Ernberg <john.ernberg(a)actia.se> crypto: caam - Prevent crash on suspend with iMX8QM / iMX8ULP Ashish Kalra <ashish.kalra(a)amd.com> crypto: ccp - Fix SNP panic notifier unregistration Giovanni Cabiddu <giovanni.cabiddu(a)intel.com> crypto: qat - lower priority for skcipher and aead algorithms Eric Biggers <ebiggers(a)kernel.org> lib/crypto: arm64/poly1305: Fix register corruption in no-SIMD contexts Eric Biggers <ebiggers(a)kernel.org> lib/crypto: arm/poly1305: Fix register corruption in no-SIMD contexts Eric Biggers <ebiggers(a)kernel.org> lib/crypto: mips/chacha: Fix clang build and remove unneeded byteswap David Howells <dhowells(a)redhat.com> netfs: Fix unbuffered write error handling Myrrh Periwinkle <myrrhperiwinkle(a)qtmlabs.xyz> vt: defkeymap: Map keycodes above 127 to K_HOLE Myrrh Periwinkle <myrrhperiwinkle(a)qtmlabs.xyz> vt: keyboard: Don't process Unicode characters in K_OFF mode Youssef Samir <quic_yabdulra(a)quicinc.com> bus: mhi: host: Detect events pointing to unexpected TREs Alexander Wilhelm <alexander.wilhelm(a)westermo.com> bus: mhi: host: Fix endianness of BHI vector table Johan Hovold <johan(a)kernel.org> usb: dwc3: imx8mp: fix device leak at unbind Johan Hovold <johan(a)kernel.org> usb: dwc3: meson-g12a: fix device leaks at unbind Johan Hovold <johan(a)kernel.org> usb: musb: omap2430: fix device leak at unbind Johan Hovold <johan(a)kernel.org> usb: gadget: udc: renesas_usb3: fix device leak at unbind Nathan Chancellor <nathan(a)kernel.org> usb: atm: cxacru: Merge cxacru_upload_firmware() into cxacru_heavy_init() David Lechner <dlechner(a)baylibre.com> iio: adc: ad7173: fix num_slots Finn Thain <fthain(a)linux-m68k.org> m68k: Fix lost column on framebuffer debug console Damien Le Moal <dlemoal(a)kernel.org> dm: Check for forbidden splitting of zone write operations Damien Le Moal <dlemoal(a)kernel.org> dm: dm-crypt: Do not partially accept write BIOs with zoned targets Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> PM: runtime: Take active children into account in pm_runtime_get_if_in_use() Tzung-Bi Shih <tzungbi(a)kernel.org> platform/chrome: cros_ec: Unregister notifier in cros_ec_unregister() Dan Carpenter <dan.carpenter(a)linaro.org> cpufreq: armada-8k: Fix off by one in armada_8k_cpufreq_free_table() Damien Le Moal <dlemoal(a)kernel.org> ata: Fix SATA_MOBILE_LPM_POLICY description in Kconfig Yunhui Cui <cuiyunhui(a)bytedance.com> serial: 8250: fix panic due to PSLVERR ------------- Diffstat: .../bindings/display/rockchip/rockchip-vop2.yaml | 56 ++++- .../bindings/display/sprd/sprd,sharkl3-dpu.yaml | 2 +- .../display/sprd/sprd,sharkl3-dsi-host.yaml | 2 +- .../devicetree/bindings/ufs/mediatek,ufs.yaml | 4 + Documentation/networking/mptcp-sysctl.rst | 2 + Makefile | 6 +- arch/arm/lib/crypto/poly1305-glue.c | 3 +- arch/arm64/boot/dts/apple/t8012-j132.dts | 1 + arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts | 2 +- arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts | 2 +- arch/arm64/boot/dts/exynos/exynos7870.dtsi | 1 + arch/arm64/boot/dts/exynos/google/gs101.dtsi | 1 + arch/arm64/boot/dts/rockchip/rk3576.dtsi | 7 +- .../arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi | 11 - arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 24 ++ arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 1 - arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 12 +- arch/arm64/boot/dts/ti/k3-am625-sk.dts | 24 ++ arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 4 +- arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 24 -- arch/arm64/boot/dts/ti/k3-pinctrl.h | 15 +- arch/arm64/lib/crypto/poly1305-glue.c | 3 +- arch/loongarch/Makefile | 6 + arch/loongarch/kernel/module-sections.c | 38 +-- arch/loongarch/kvm/intc/eiointc.c | 32 +-- arch/loongarch/kvm/intc/ipi.c | 8 +- arch/loongarch/kvm/intc/pch_pic.c | 10 + arch/loongarch/kvm/vcpu.c | 8 +- arch/m68k/kernel/head.S | 31 ++- arch/mips/lib/crypto/chacha-core.S | 20 +- arch/parisc/Makefile | 4 +- arch/parisc/include/asm/pgtable.h | 7 +- arch/parisc/include/asm/special_insns.h | 28 +++ arch/parisc/include/asm/uaccess.h | 21 +- arch/parisc/kernel/cache.c | 6 +- arch/parisc/kernel/entry.S | 17 +- arch/parisc/kernel/syscall.S | 30 ++- arch/parisc/lib/memcpy.c | 19 +- arch/parisc/mm/fault.c | 4 + arch/s390/boot/vmem.c | 3 + arch/s390/hypfs/hypfs_dbfs.c | 19 +- arch/x86/crypto/aegis128-aesni-glue.c | 40 +++- arch/x86/include/asm/xen/hypercall.h | 5 +- arch/x86/kernel/cpu/amd.c | 8 +- arch/x86/kernel/cpu/hygon.c | 3 + block/bfq-iosched.c | 13 +- block/blk-mq-debugfs.c | 1 + block/blk-mq-sched.c | 223 ++++++++++++------ block/blk-mq-sched.h | 12 +- block/blk-mq.c | 29 ++- block/blk-rq-qos.c | 8 +- block/blk-rq-qos.h | 48 ++-- block/blk-sysfs.c | 2 +- block/blk.h | 4 +- block/elevator.c | 38 ++- block/elevator.h | 16 +- block/kyber-iosched.c | 11 +- block/mq-deadline.c | 14 +- crypto/deflate.c | 7 +- drivers/accel/habanalabs/gaudi2/gaudi2.c | 2 +- drivers/acpi/apei/einj-core.c | 12 +- drivers/acpi/pfr_update.c | 2 +- drivers/ata/Kconfig | 32 ++- drivers/ata/libata-scsi.c | 49 ++-- drivers/base/power/runtime.c | 27 ++- drivers/bluetooth/btmtk.c | 7 +- drivers/bus/mhi/host/boot.c | 8 +- drivers/bus/mhi/host/internal.h | 4 +- drivers/bus/mhi/host/main.c | 12 +- drivers/cdx/controller/cdx_rpmsg.c | 3 +- drivers/comedi/comedi_fops.c | 5 + drivers/comedi/drivers.c | 27 +-- drivers/comedi/drivers/pcl726.c | 3 +- drivers/cpufreq/armada-8k-cpufreq.c | 2 +- drivers/cpuidle/governors/menu.c | 29 +-- drivers/crypto/caam/ctrl.c | 5 +- drivers/crypto/caam/intern.h | 1 + drivers/crypto/ccp/sev-dev.c | 10 +- .../crypto/intel/qat/qat_common/adf_common_drv.h | 1 + drivers/crypto/intel/qat/qat_common/adf_init.c | 1 + drivers/crypto/intel/qat/qat_common/adf_isr.c | 5 + drivers/crypto/intel/qat/qat_common/qat_algs.c | 12 +- drivers/crypto/marvell/octeontx2/otx2_cpt_reqmgr.h | 125 +++++++--- .../crypto/marvell/octeontx2/otx2_cptpf_ucode.c | 35 +-- drivers/fpga/zynq-fpga.c | 10 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c | 8 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 +- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 76 +++--- drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 7 - drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 21 +- drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c | 5 +- drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 14 +- drivers/gpu/drm/amd/amdgpu/imu_v12_0.c | 13 +- drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c | 57 +++-- drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c | 121 +++++++++- drivers/gpu/drm/amd/amdgpu/mmhub_v4_1_0.c | 34 ++- drivers/gpu/drm/amd/amdgpu/psp_v14_0.c | 2 + drivers/gpu/drm/amd/amdgpu/soc15.c | 2 + .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_module.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 61 ++++- .../gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 20 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 28 +++ .../drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 +- drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 5 +- .../gpu/drm/amd/display/dc/bios/command_table.c | 2 +- drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | 1 - .../amd/display/dc/clk_mgr/dce100/dce_clk_mgr.c | 19 +- .../amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c | 40 ++-- .../amd/display/dc/clk_mgr/dce60/dce60_clk_mgr.c | 31 +-- drivers/gpu/drm/amd/display/dc/core/dc.c | 34 ++- .../amd/display/dc/resource/dce60/dce60_resource.c | 34 +-- .../gpu/drm/amd/display/modules/hdcp/hdcp_psp.c | 3 + drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 16 ++ drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c | 11 +- .../gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c | 30 ++- drivers/gpu/drm/display/drm_dp_helper.c | 2 +- drivers/gpu/drm/drm_format_helper.c | 108 ++++++++- drivers/gpu/drm/drm_format_internal.h | 8 + drivers/gpu/drm/drm_panic_qr.rs | 22 +- drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c | 14 +- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22 +- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 1 + drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c | 5 + drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 11 +- drivers/gpu/drm/i915/display/intel_display_irq.c | 4 + drivers/gpu/drm/i915/display/intel_tc.c | 93 ++++++-- drivers/gpu/drm/i915/gt/intel_workarounds.c | 20 +- drivers/gpu/drm/nouveau/nvif/vmm.c | 3 +- .../gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c | 4 +- drivers/gpu/drm/nova/file.rs | 3 +- drivers/gpu/drm/tests/drm_format_helper_test.c | 111 ++------- drivers/gpu/drm/xe/Kconfig | 1 + drivers/gpu/drm/xe/xe_migrate.c | 2 +- drivers/gpu/drm/xe/xe_pxp_submit.c | 2 +- drivers/gpu/drm/xe/xe_shrinker.c | 51 +++- drivers/gpu/drm/xe/xe_vm.c | 48 ++-- drivers/gpu/drm/xe/xe_vm.h | 2 +- drivers/hwmon/gsc-hwmon.c | 4 +- drivers/i2c/busses/i2c-qcom-geni.c | 6 +- drivers/i2c/busses/i2c-rtl9300.c | 20 +- drivers/iio/accel/sca3300.c | 2 +- drivers/iio/adc/Kconfig | 2 +- drivers/iio/adc/ad7124.c | 14 +- drivers/iio/adc/ad7173.c | 137 ++++++++--- drivers/iio/adc/ad7380.c | 1 + drivers/iio/adc/ad_sigma_delta.c | 4 +- drivers/iio/adc/rzg2l_adc.c | 33 +-- drivers/iio/imu/bno055/bno055.c | 11 +- drivers/iio/imu/inv_icm42600/inv_icm42600.h | 8 +- drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 31 ++- drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c | 22 +- drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h | 10 +- drivers/iio/imu/inv_icm42600/inv_icm42600_core.c | 6 +- drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 41 ++-- drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c | 12 +- drivers/iio/light/as73211.c | 2 +- drivers/iio/pressure/bmp280-core.c | 9 +- drivers/iio/proximity/isl29501.c | 14 +- drivers/iio/temperature/maxim_thermocouple.c | 26 ++- drivers/infiniband/core/umem_odp.c | 4 +- drivers/infiniband/hw/bnxt_re/ib_verbs.c | 8 +- drivers/infiniband/hw/bnxt_re/main.c | 23 ++ drivers/infiniband/hw/bnxt_re/qplib_fp.c | 30 +-- drivers/infiniband/hw/bnxt_re/qplib_fp.h | 2 - drivers/infiniband/hw/bnxt_re/qplib_res.c | 2 + drivers/infiniband/hw/erdma/erdma_verbs.c | 6 +- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 +- drivers/infiniband/hw/hns/hns_roce_restrack.c | 9 +- drivers/infiniband/sw/rxe/rxe_net.c | 29 +-- drivers/infiniband/sw/rxe/rxe_qp.c | 2 +- drivers/iommu/amd/init.c | 4 +- drivers/iommu/apple-dart.c | 1 - drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- drivers/iommu/intel/iommu.c | 1 - drivers/iommu/iommufd/selftest.c | 1 - drivers/iommu/riscv/iommu.c | 3 +- drivers/iommu/virtio-iommu.c | 19 +- drivers/md/dm-crypt.c | 47 +++- drivers/md/dm-raid.c | 42 ++-- drivers/md/dm.c | 17 +- drivers/md/md-bitmap.c | 8 +- drivers/md/md-cluster.c | 16 +- drivers/md/md.c | 110 ++++++--- drivers/md/md.h | 2 +- drivers/md/raid0.c | 6 +- drivers/md/raid1-10.c | 2 +- drivers/md/raid1.c | 10 +- drivers/md/raid10.c | 16 +- drivers/md/raid5-ppl.c | 6 +- drivers/md/raid5.c | 30 +-- drivers/media/cec/usb/rainshadow/rainshadow-cec.c | 3 +- drivers/media/i2c/hi556.c | 26 ++- drivers/media/i2c/mt9m114.c | 8 - drivers/media/i2c/ov2659.c | 3 +- drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c | 12 +- drivers/media/pci/intel/ivsc/mei_ace.c | 2 + drivers/media/pci/intel/ivsc/mei_csi.c | 2 + .../platform/qcom/camss/camss-csiphy-3ph-1-0.c | 3 +- drivers/media/platform/qcom/camss/camss.c | 20 +- drivers/media/platform/qcom/iris/iris_buffer.c | 20 +- drivers/media/platform/qcom/iris/iris_buffer.h | 3 +- drivers/media/platform/qcom/iris/iris_ctrls.c | 7 +- .../platform/qcom/iris/iris_hfi_gen1_command.c | 27 +-- .../platform/qcom/iris/iris_hfi_gen1_defines.h | 1 - .../platform/qcom/iris/iris_hfi_gen1_response.c | 20 +- .../platform/qcom/iris/iris_hfi_gen2_command.c | 4 +- .../platform/qcom/iris/iris_hfi_gen2_response.c | 11 +- drivers/media/platform/qcom/iris/iris_hfi_queue.c | 2 +- drivers/media/platform/qcom/iris/iris_instance.h | 2 + .../platform/qcom/iris/iris_platform_common.h | 2 +- .../platform/qcom/iris/iris_platform_sm8250.c | 9 - drivers/media/platform/qcom/iris/iris_state.c | 2 +- drivers/media/platform/qcom/iris/iris_state.h | 1 + drivers/media/platform/qcom/iris/iris_vb2.c | 15 +- drivers/media/platform/qcom/iris/iris_vdec.c | 9 +- drivers/media/platform/qcom/iris/iris_vidc.c | 33 ++- drivers/media/platform/qcom/venus/core.c | 18 +- drivers/media/platform/qcom/venus/core.h | 2 + drivers/media/platform/qcom/venus/hfi_venus.c | 5 + drivers/media/platform/qcom/venus/vdec.c | 5 +- drivers/media/platform/qcom/venus/venc.c | 5 +- drivers/media/platform/raspberrypi/pisp_be/Kconfig | 1 + .../media/platform/raspberrypi/pisp_be/pisp_be.c | 5 +- .../media/platform/verisilicon/rockchip_vpu_hw.c | 9 - drivers/media/test-drivers/vivid/vivid-ctrls.c | 3 +- drivers/media/test-drivers/vivid/vivid-vid-cap.c | 4 +- drivers/media/usb/gspca/vicam.c | 10 +- drivers/media/usb/usbtv/usbtv-video.c | 4 + drivers/media/v4l2-core/v4l2-ctrls-core.c | 1 - drivers/memstick/core/memstick.c | 1 - drivers/memstick/host/rtsx_usb_ms.c | 1 + drivers/mfd/mt6397-core.c | 12 +- drivers/mmc/host/sdhci-of-arasan.c | 33 ++- drivers/mmc/host/sdhci-pci-gli.c | 37 +-- drivers/mmc/host/sdhci_am654.c | 18 ++ drivers/most/core.c | 2 +- drivers/mtd/nand/raw/fsmc_nand.c | 2 + drivers/mtd/nand/raw/renesas-nand-controller.c | 6 + drivers/mtd/nand/spi/core.c | 5 +- drivers/mtd/spi-nor/swp.c | 19 +- drivers/net/bonding/bond_3ad.c | 67 ++++-- drivers/net/bonding/bond_options.c | 1 + drivers/net/dsa/microchip/ksz_common.c | 6 + drivers/net/ethernet/airoha/airoha_ppe.c | 4 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- drivers/net/ethernet/google/gve/gve_main.c | 2 + drivers/net/ethernet/intel/igc/igc_main.c | 14 +- drivers/net/ethernet/intel/ixgbe/devlink/devlink.c | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 4 +- .../net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c | 4 +- drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 2 + drivers/net/ethernet/mellanox/mlx5/core/en/dcbnl.h | 1 - .../ethernet/mellanox/mlx5/core/en/port_buffer.c | 18 +- .../ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c | 2 + drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 12 +- .../ethernet/mellanox/mlx5/core/esw/devlink_port.c | 4 +- .../net/ethernet/mellanox/mlx5/core/mlx5_core.h | 2 + drivers/net/ethernet/mellanox/mlx5/core/port.c | 20 ++ .../mellanox/mlx5/core/steering/hws/bwc_complex.c | 41 ++-- .../ethernet/mellanox/mlx5/core/steering/hws/cmd.c | 1 + .../ethernet/mellanox/mlx5/core/steering/hws/cmd.h | 1 + .../mellanox/mlx5/core/steering/hws/fs_hws.c | 1 + .../mellanox/mlx5/core/steering/hws/matcher.c | 5 +- .../mellanox/mlx5/core/steering/hws/mlx5hws.h | 1 + .../mellanox/mlx5/core/steering/hws/send.c | 1 - .../mellanox/mlx5/core/steering/hws/table.c | 13 +- .../mellanox/mlx5/core/steering/hws/table.h | 3 +- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 2 + drivers/net/ethernet/mellanox/mlxsw/trap.h | 1 + drivers/net/ethernet/microchip/lan865x/lan865x.c | 21 ++ drivers/net/ethernet/realtek/rtase/rtase.h | 2 +- drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c | 9 +- drivers/net/ethernet/ti/icssg/icssg_prueth.c | 72 +++--- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 8 +- drivers/net/phy/mscc/mscc.h | 12 + drivers/net/phy/mscc/mscc_main.c | 12 + drivers/net/phy/mscc/mscc_ptp.c | 49 +++- drivers/net/ppp/ppp_generic.c | 17 +- drivers/net/usb/asix_devices.c | 2 +- drivers/net/wireless/ath/ath11k/ce.c | 3 - drivers/net/wireless/ath/ath11k/dp_rx.c | 3 - drivers/net/wireless/ath/ath11k/hal.c | 33 ++- drivers/net/wireless/ath/ath12k/ce.c | 3 - drivers/net/wireless/ath/ath12k/hal.c | 38 ++- .../broadcom/brcm80211/brcmsmac/phy/phy_lcn.c | 2 +- drivers/pci/controller/dwc/pci-imx6.c | 12 +- drivers/pci/controller/dwc/pcie-designware.c | 8 + drivers/pci/controller/pcie-rockchip-ep.c | 4 +- drivers/pci/controller/pcie-rockchip-host.c | 49 ++-- drivers/pci/controller/pcie-rockchip.h | 12 +- drivers/pci/endpoint/pci-ep-cfs.c | 1 + drivers/pci/endpoint/pci-epf-core.c | 2 +- drivers/pci/pci.h | 32 +-- drivers/pci/pcie/portdrv.c | 2 +- drivers/phy/qualcomm/phy-qcom-m31.c | 14 +- drivers/platform/chrome/cros_ec.c | 3 + drivers/platform/x86/amd/hsmp/hsmp.c | 5 + .../intel/uncore-frequency/uncore-frequency-tpmi.c | 5 + drivers/pwm/pwm-imx-tpm.c | 9 + drivers/pwm/pwm-mediatek.c | 71 +++--- drivers/regulator/pca9450-regulator.c | 13 +- drivers/regulator/tps65219-regulator.c | 12 +- drivers/s390/char/sclp.c | 11 +- drivers/scsi/mpi3mr/mpi3mr.h | 6 +- drivers/scsi/mpi3mr/mpi3mr_fw.c | 17 +- drivers/scsi/mpi3mr/mpi3mr_os.c | 2 + drivers/scsi/qla4xxx/ql4_os.c | 2 + drivers/soc/qcom/mdt_loader.c | 43 ++++ drivers/soc/tegra/pmc.c | 51 ++-- drivers/spi/spi-fsl-lpspi.c | 8 +- drivers/spi/spi-qpic-snand.c | 22 +- drivers/staging/media/imx/imx-media-csc-scaler.c | 2 +- drivers/tty/serial/8250/8250_port.c | 3 +- drivers/tty/vt/defkeymap.c_shipped | 112 +++++++++ drivers/tty/vt/keyboard.c | 2 +- drivers/ufs/core/ufshcd.c | 10 +- drivers/ufs/host/ufs-exynos.c | 4 +- drivers/ufs/host/ufs-qcom.c | 42 ++-- drivers/ufs/host/ufshcd-pci.c | 42 +++- drivers/usb/atm/cxacru.c | 172 +++++++------- drivers/usb/core/hcd.c | 20 +- drivers/usb/core/quirks.c | 1 + drivers/usb/dwc3/dwc3-imx8mp.c | 7 +- drivers/usb/dwc3/dwc3-meson-g12a.c | 3 + drivers/usb/dwc3/dwc3-pci.c | 2 + drivers/usb/dwc3/ep0.c | 20 +- drivers/usb/dwc3/gadget.c | 19 +- drivers/usb/gadget/udc/renesas_usb3.c | 1 + drivers/usb/host/xhci-hub.c | 3 +- drivers/usb/host/xhci-mem.c | 22 +- drivers/usb/host/xhci-pci-renesas.c | 7 +- drivers/usb/host/xhci-ring.c | 9 +- drivers/usb/host/xhci.c | 23 +- drivers/usb/host/xhci.h | 3 +- drivers/usb/musb/omap2430.c | 14 +- drivers/usb/storage/realtek_cr.c | 2 +- drivers/usb/storage/unusual_devs.h | 29 +++ drivers/usb/typec/tcpm/maxim_contaminant.c | 58 +++++ drivers/usb/typec/tcpm/tcpci_maxim.h | 1 + drivers/vhost/vsock.c | 6 +- drivers/video/console/vgacon.c | 2 +- fs/btrfs/ctree.c | 23 +- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/extent_io.c | 94 ++++---- fs/btrfs/extent_io.h | 2 +- fs/btrfs/fiemap.c | 2 +- fs/btrfs/free-space-tree.c | 17 +- fs/btrfs/inode.c | 8 +- fs/btrfs/print-tree.c | 2 +- fs/btrfs/qgroup.c | 6 +- fs/btrfs/relocation.c | 4 +- fs/btrfs/subpage.c | 258 +++++++++++---------- fs/btrfs/subpage.h | 45 +++- fs/btrfs/super.c | 13 +- fs/btrfs/tree-log.c | 4 +- fs/btrfs/zoned.c | 70 ++++-- fs/buffer.c | 2 +- fs/debugfs/inode.c | 11 +- fs/erofs/Kconfig | 18 +- fs/ext4/fsmap.c | 23 +- fs/ext4/indirect.c | 4 +- fs/ext4/inode.c | 2 +- fs/ext4/orphan.c | 5 +- fs/ext4/super.c | 8 +- fs/f2fs/node.c | 10 + fs/fhandle.c | 2 +- fs/internal.h | 3 + fs/iomap/direct-io.c | 14 +- fs/jbd2/checkpoint.c | 1 + fs/libfs.c | 27 ++- fs/namespace.c | 69 +++--- fs/netfs/read_collect.c | 4 +- fs/netfs/write_collect.c | 10 +- fs/netfs/write_issue.c | 4 +- fs/nfs/pagelist.c | 9 +- fs/nfs/write.c | 29 +-- fs/overlayfs/copy_up.c | 2 +- fs/proc/task_mmu.c | 4 +- fs/smb/client/smb2ops.c | 2 +- fs/smb/server/connection.c | 3 +- fs/smb/server/connection.h | 7 +- fs/smb/server/oplock.c | 13 +- fs/smb/server/transport_rdma.c | 5 +- fs/smb/server/transport_rdma.h | 4 +- fs/smb/server/transport_tcp.c | 26 ++- fs/splice.c | 3 + fs/squashfs/super.c | 14 +- fs/xfs/libxfs/xfs_refcount.c | 4 +- fs/xfs/scrub/common.c | 3 +- fs/xfs/scrub/repair.c | 12 +- fs/xfs/scrub/scrub.c | 5 +- fs/xfs/xfs_attr_item.c | 5 +- fs/xfs/xfs_discard.c | 12 +- fs/xfs/xfs_fsmap.c | 4 +- fs/xfs/xfs_icache.c | 5 +- fs/xfs/xfs_inode.c | 7 +- fs/xfs/xfs_itable.c | 24 +- fs/xfs/xfs_iwalk.c | 11 +- fs/xfs/xfs_notify_failure.c | 6 +- fs/xfs/xfs_qm.c | 10 +- fs/xfs/xfs_rtalloc.c | 13 +- fs/xfs/xfs_trans.c | 56 ++--- fs/xfs/xfs_trans.h | 3 +- fs/xfs/xfs_zone_alloc.c | 10 +- fs/xfs/xfs_zone_gc.c | 5 +- include/crypto/hash.h | 2 +- include/crypto/internal/acompress.h | 5 +- include/drm/drm_format_helper.h | 9 + include/drm/intel/pciids.h | 1 + include/linux/blkdev.h | 1 + include/linux/compiler.h | 8 - include/linux/iosys-map.h | 7 +- include/linux/iov_iter.h | 20 +- include/linux/kcov.h | 47 +--- include/linux/mlx5/mlx5_ifc.h | 14 +- include/linux/netfs.h | 1 + include/linux/nfs_page.h | 1 + include/net/bluetooth/bluetooth.h | 4 +- include/net/bluetooth/hci.h | 1 + include/net/bluetooth/hci_core.h | 54 ++++- include/net/bond_3ad.h | 1 + include/net/devlink.h | 6 +- include/net/sch_generic.h | 11 +- include/sound/cs35l56.h | 5 +- include/trace/events/btrfs.h | 2 +- include/uapi/linux/pfrut.h | 1 + include/uapi/linux/raid/md_p.h | 2 +- io_uring/futex.c | 3 + kernel/Kconfig.kexec | 1 + kernel/cgroup/cpuset.c | 9 +- kernel/cgroup/rstat.c | 3 + kernel/kexec_handover.c | 29 ++- kernel/sched/ext.c | 4 + kernel/signal.c | 6 +- kernel/trace/ftrace.c | 19 +- kernel/trace/trace.c | 34 ++- kernel/trace/trace.h | 10 +- mm/damon/core.c | 15 +- mm/damon/paddr.c | 4 + mm/debug_vm_pgtable.c | 9 +- mm/filemap.c | 3 +- mm/kasan/kasan_test_c.c | 2 +- mm/memory-failure.c | 8 + mm/mremap.c | 41 ++-- net/bluetooth/hci_conn.c | 17 +- net/bluetooth/hci_core.c | 27 ++- net/bluetooth/hci_event.c | 15 +- net/bluetooth/hci_sync.c | 33 +-- net/bluetooth/iso.c | 20 +- net/bluetooth/mgmt.c | 13 +- net/bridge/br_multicast.c | 16 ++ net/bridge/br_private.h | 2 + net/core/dev.c | 12 + net/devlink/port.c | 2 +- net/hsr/hsr_slave.c | 8 +- net/ipv4/netfilter/nf_reject_ipv4.c | 6 +- net/ipv6/netfilter/nf_reject_ipv6.c | 5 +- net/ipv6/seg6_hmac.c | 6 +- net/mptcp/options.c | 6 +- net/mptcp/pm.c | 18 +- net/mptcp/pm_kernel.c | 1 - net/sched/sch_cake.c | 14 +- net/sched/sch_codel.c | 12 +- net/sched/sch_fq.c | 12 +- net/sched/sch_fq_codel.c | 12 +- net/sched/sch_fq_pie.c | 12 +- net/sched/sch_hhf.c | 12 +- net/sched/sch_htb.c | 2 +- net/sched/sch_pie.c | 12 +- net/smc/af_smc.c | 3 +- net/tls/tls_sw.c | 7 +- net/vmw_vsock/virtio_transport.c | 12 +- rust/kernel/alloc/allocator.rs | 30 ++- rust/kernel/alloc/allocator_test.rs | 11 + rust/kernel/drm/device.rs | 32 ++- rust/kernel/faux.rs | 2 +- security/apparmor/lsm.c | 4 +- sound/core/timer.c | 4 +- sound/pci/hda/patch_realtek.c | 2 + sound/pci/hda/tas2781_hda_i2c.c | 2 +- sound/soc/codecs/cs35l56-sdw.c | 69 ------ sound/soc/codecs/cs35l56-shared.c | 29 ++- sound/soc/codecs/cs35l56.c | 2 +- sound/soc/codecs/cs35l56.h | 3 - sound/soc/sof/amd/acp-loader.c | 6 +- sound/usb/stream.c | 2 +- sound/usb/validate.c | 2 +- tools/objtool/arch/loongarch/special.c | 23 ++ tools/testing/selftests/net/mptcp/mptcp_connect.c | 5 +- tools/testing/selftests/net/mptcp/mptcp_inq.c | 5 +- tools/testing/selftests/net/mptcp/mptcp_sockopt.c | 5 +- tools/testing/selftests/net/mptcp/pm_netlink.sh | 1 + 498 files changed, 4907 insertions(+), 2746 deletions(-)

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