May 2025 - Linux-stable-mirror

[PATCH v4 rc] iommu: Skip PASID validation for devices without PASID capability

by Tushar Dave

Generally PASID support requires ACS settings that usually create single device groups, but there are some niche cases where we can get multi-device groups and still have working PASID support. The primary issue is that PCI switches are not required to treat PASID tagged TLPs specially so appropriate ACS settings are required to route all TLPs to the host bridge if PASID is going to work properly. pci_enable_pasid() does check that each device that will use PASID has the proper ACS settings to achieve this routing. However, no-PASID devices can be combined with PASID capable devices within the same topology using non-uniform ACS settings. In this case the no-PASID devices may not have strict route to host ACS flags and end up being grouped with the PASID devices. This configuration fails to allow use of the PASID within the iommu core code which wrongly checks if the no-PASID device supports PASID. Fix this by ignoring no-PASID devices during the PASID validation. They will never issue a PASID TLP anyhow so they can be ignored. Fixes: c404f55c26fc ("iommu: Validate the PASID in iommu_attach_device_pasid()") Cc: stable(a)vger.kernel.org Signed-off-by: Tushar Dave <tdave(a)nvidia.com> --- changes in v4: - rebase to 6.15-rc7 drivers/iommu/iommu.c | 43 ++++++++++++++++++++++++++++--------------- 1 file changed, 28 insertions(+), 15 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 4f91a740c15f..9d728800a862 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -3366,10 +3366,12 @@ static int __iommu_set_group_pasid(struct iommu_domain *domain, int ret; for_each_group_device(group, device) { - ret = domain->ops->set_dev_pasid(domain, device->dev, - pasid, old); - if (ret) - goto err_revert; + if (device->dev->iommu->max_pasids > 0) { + ret = domain->ops->set_dev_pasid(domain, device->dev, + pasid, old); + if (ret) + goto err_revert; + } } return 0; @@ -3379,15 +3381,18 @@ static int __iommu_set_group_pasid(struct iommu_domain *domain, for_each_group_device(group, device) { if (device == last_gdev) break; - /* - * If no old domain, undo the succeeded devices/pasid. - * Otherwise, rollback the succeeded devices/pasid to the old - * domain. And it is a driver bug to fail attaching with a - * previously good domain. - */ - if (!old || WARN_ON(old->ops->set_dev_pasid(old, device->dev, + if (device->dev->iommu->max_pasids > 0) { + /* + * If no old domain, undo the succeeded devices/pasid. + * Otherwise, rollback the succeeded devices/pasid to + * the old domain. And it is a driver bug to fail + * attaching with a previously good domain. + */ + if (!old || + WARN_ON(old->ops->set_dev_pasid(old, device->dev, pasid, domain))) - iommu_remove_dev_pasid(device->dev, pasid, domain); + iommu_remove_dev_pasid(device->dev, pasid, domain); + } } return ret; } @@ -3398,8 +3403,10 @@ static void __iommu_remove_group_pasid(struct iommu_group *group, { struct group_device *device; - for_each_group_device(group, device) - iommu_remove_dev_pasid(device->dev, pasid, domain); + for_each_group_device(group, device) { + if (device->dev->iommu->max_pasids > 0) + iommu_remove_dev_pasid(device->dev, pasid, domain); + } } /* @@ -3440,7 +3447,13 @@ int iommu_attach_device_pasid(struct iommu_domain *domain, mutex_lock(&group->mutex); for_each_group_device(group, device) { - if (pasid >= device->dev->iommu->max_pasids) { + /* + * Skip PASID validation for devices without PASID support + * (max_pasids = 0). These devices cannot issue transactions + * with PASID, so they don't affect group's PASID usage. + */ + if ((device->dev->iommu->max_pasids > 0) && + (pasid >= device->dev->iommu->max_pasids)) { ret = -EINVAL; goto out_unlock; } -- 2.34.1

3 months, 3 weeks

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6.12.29: amdgpu-related "fail"-messages during boot; bisected

by Rainer Fiebig

Hi! After updating to linux-6.12.29, I see lots of "fail"-messages during boot: May 19 23:39:09 LUX kernel: [ 4.819552] amdgpu 0000:30:00.0: amdgpu: [drm] amdgpu: DP AUX transfer fail:4 Bisecting for drivers/gpu/drm/amd had this result: > git bisect bad 2d63e66f7ba7b88b87e72155a33b970c81cf4664 is the first bad commit commit 2d63e66f7ba7b88b87e72155a33b970c81cf4664 (HEAD) Author: Wayne Lin <Wayne.Lin(a)amd.com> Date: Sun Apr 20 19:22:14 2025 +0800 drm/amd/display: Fix wrong handling for AUX_DEFER case commit 65924ec69b29296845c7f628112353438e63ea56 upstream. The system (Ryzen 3 5600G, latest BIOS) is stable so far but the error-messages are not nice to see. Thanks. Rainer Fiebig -- The truth always turns out to be simpler than you thought. Richard Feynman

3 months, 3 weeks

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[PATCH v2] mm/hugetlb: fix a deadlock with pagecache_folio and hugetlb_fault_mutex_table

by Gavin Guo

The patch fixes a deadlock which can be triggered by an internal syzkaller [1] reproducer and captured by bpftrace script [2] and its log [3] in this scenario: Process 1 Process 2 --- --- hugetlb_fault mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // take A hugetlb_wp mutex_unlock(B) // release B ... hugetlb_fault ... mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // blocked unmap_ref_private ... mutex_lock(B) // retake and blocked This is a ABBA deadlock involving two locks: - Lock A: pagecache_folio lock - Lock B: hugetlb_fault_mutex_table lock The deadlock occurs between two processes as follows: 1. The first process (let’s call it Process 1) is handling a copy-on-write (COW) operation on a hugepage via hugetlb_wp. Due to insufficient reserved hugetlb pages, Process 1, owner of the reserved hugetlb page, attempts to unmap a hugepage owned by another process (non-owner) to satisfy the reservation. Before unmapping, Process 1 acquires lock B (hugetlb_fault_mutex_table lock) and then lock A (pagecache_folio lock). To proceed with the unmap, it releases Lock B but retains Lock A. After the unmap, Process 1 tries to reacquire Lock B. However, at this point, Lock B has already been acquired by another process. 2. The second process (Process 2) enters the hugetlb_fault handler during the unmap operation. It successfully acquires Lock B (hugetlb_fault_mutex_table lock) that was just released by Process 1, but then attempts to acquire Lock A (pagecache_folio lock), which is still held by Process 1. As a result, Process 1 (holding Lock A) is blocked waiting for Lock B (held by Process 2), while Process 2 (holding Lock B) is blocked waiting for Lock A (held by Process 1), constructing a ABBA deadlock scenario. The error message: INFO: task repro_20250402_:13229 blocked for more than 64 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:25856 pid:13229 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00004006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 schedule_preempt_disabled+0x15/0x30 __mutex_lock+0x75f/0xeb0 hugetlb_wp+0xf88/0x3440 hugetlb_fault+0x14c8/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0x61d/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0010:__put_user_4+0xd/0x20 copy_process+0x1f4a/0x3d60 kernel_clone+0x210/0x8f0 __x64_sys_clone+0x18d/0x1f0 do_syscall_64+0x6a/0x120 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x41b26d </TASK> INFO: task repro_20250402_:13229 is blocked on a mutex likely owned by task repro_20250402_:13250. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> INFO: task repro_20250402_:13250 blocked for more than 65 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/35: #0: ffffffff879a7440 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 2 locks held by repro_20250402_/13229: #0: ffff888017d801e0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x37/0x300 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_wp+0xf88/0x3440 3 locks held by repro_20250402_/13250: #0: ffff8880177f3d08 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x41b/0x1490 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_fault+0x3b8/0x2c30 #2: ffff8880129500e8 (&resv_map->rw_sema){++++}-{4:4}, at: hugetlb_fault+0x494/0x2c30 Link: https://drive.google.com/file/d/1DVRnIW-vSayU5J1re9Ct_br3jJQU6Vpb/view?usp=… [1] Link: https://github.com/bboymimi/bpftracer/blob/master/scripts/hugetlb_lock_debu… [2] Link: https://drive.google.com/file/d/1bWq2-8o-BJAuhoHWX7zAhI6ggfhVzQUI/view?usp=… [3] Fixes: 40549ba8f8e0 ("hugetlb: use new vma_lock for pmd sharing synchronization") Cc: stable(a)vger.kernel.org Cc: Hugh Dickins <hughd(a)google.com> Cc: Florent Revest <revest(a)google.com> Cc: Gavin Shan <gshan(a)redhat.com> Suggested-by: Oscar Salvador <osalvador(a)suse.de> Signed-off-by: Gavin Guo <gavinguo(a)igalia.com> --- V1 -> V2 Suggested-by Oscar Salvador: - Use folio_test_locked to replace the unnecessary parameter passing. mm/hugetlb.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 7ae38bfb9096..ed501f134eff 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6226,6 +6226,12 @@ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, u32 hash; folio_put(old_folio); + /* + * The pagecache_folio needs to be unlocked to avoid + * deadlock when the child unmaps the folio. + */ + if (pagecache_folio) + folio_unlock(pagecache_folio); /* * Drop hugetlb_fault_mutex and vma_lock before * unmapping. unmapping needs to hold vma_lock @@ -6823,8 +6829,13 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, out_ptl: spin_unlock(vmf.ptl); + /* + * hugetlb_wp() might have already unlocked pagecache_folio, so + * skip it if that is the case. + */ if (pagecache_folio) { - folio_unlock(pagecache_folio); + if (folio_test_locked(pagecache_folio)) + folio_unlock(pagecache_folio); folio_put(pagecache_folio); } out_mutex: base-commit: 4a95bc121ccdaee04c4d72f84dbfa6b880a514b6 -- 2.43.0

3 months, 3 weeks

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[PATCH] tty: serial: 8250_omap: fix TX with DMA for am33xx

by Jiri Slaby (SUSE)

Commit 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") introduced an error in the TX DMA handling for 8250_omap. When the OMAP_DMA_TX_KICK flag is set, the "skip_byte" is pulled from the kfifo and emitted directly in order to start the DMA. While the kfifo is updated, dma->tx_size is not decreased. This leads to uart_xmit_advance() called in omap_8250_dma_tx_complete() advancing the kfifo by one too much. In practice, transmitting N bytes has been seen to result in the last N-1 bytes being sent repeatedly. This change fixes the problem by moving all of the dma setup after the OMAP_DMA_TX_KICK handling and using kfifo_len() instead of the DMA size for the 4-byte cutoff check. This slightly changes the behaviour at buffer wraparound, but it still transmits the correct bytes somehow. Now, the "skip_byte" would no longer be accounted to the stats. As previously, dma->tx_size included also this skip byte, up->icount.tx was updated by aforementioned uart_xmit_advance() in omap_8250_dma_tx_complete(). Fix this by using the uart_fifo_out() helper instead of bare kfifo_get(). Based on patch by Mans Rullgard <mans(a)mansr.com> Fixes: 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") Reported-by: Mans Rullgard <mans(a)mansr.com> Cc: stable(a)vger.kernel.org --- The same as for the original patch, I would appreaciate if someone actually tests this one on a real HW too. A patch to optimize the driver to use 2 sgls is still welcome. I will not add it without actually having the HW. --- drivers/tty/serial/8250/8250_omap.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index c9b1c689a045..bb23afdd63f2 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1151,16 +1151,6 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) return 0; } - sg_init_table(&sg, 1); - ret = kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, - UART_XMIT_SIZE, dma->tx_addr); - if (ret != 1) { - serial8250_clear_THRI(p); - return 0; - } - - dma->tx_size = sg_dma_len(&sg); - if (priv->habit & OMAP_DMA_TX_KICK) { unsigned char c; u8 tx_lvl; @@ -1185,18 +1175,22 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) ret = -EBUSY; goto err; } - if (dma->tx_size < 4) { + if (kfifo_len(&tport->xmit_fifo) < 4) { ret = -EINVAL; goto err; } - if (!kfifo_get(&tport->xmit_fifo, &c)) { + if (!uart_fifo_out(&p->port, &c, 1)) { ret = -EINVAL; goto err; } skip_byte = c; - /* now we need to recompute due to kfifo_get */ - kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, - UART_XMIT_SIZE, dma->tx_addr); + } + + sg_init_table(&sg, 1); + ret = kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, UART_XMIT_SIZE, dma->tx_addr); + if (ret != 1) { + ret = -EINVAL; + goto err; } desc = dmaengine_prep_slave_sg(dma->txchan, &sg, 1, DMA_MEM_TO_DEV, @@ -1206,6 +1200,7 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) goto err; } + dma->tx_size = sg_dma_len(&sg); dma->tx_running = 1; desc->callback = omap_8250_dma_tx_complete; -- 2.49.0

3 months, 3 weeks

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[PATCH v2] tty: serial: 8250_omap: fix TX with DMA for am33xx

by Jiri Slaby (SUSE)

Commit 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") introduced an error in the TX DMA handling for 8250_omap. When the OMAP_DMA_TX_KICK flag is set, the "skip_byte" is pulled from the kfifo and emitted directly in order to start the DMA. While the kfifo is updated, dma->tx_size is not decreased. This leads to uart_xmit_advance() called in omap_8250_dma_tx_complete() advancing the kfifo by one too much. In practice, transmitting N bytes has been seen to result in the last N-1 bytes being sent repeatedly. This change fixes the problem by moving all of the dma setup after the OMAP_DMA_TX_KICK handling and using kfifo_len() instead of the DMA size for the 4-byte cutoff check. This slightly changes the behaviour at buffer wraparound, but it still transmits the correct bytes somehow. Now, the "skip_byte" would no longer be accounted to the stats. As previously, dma->tx_size included also this skip byte, up->icount.tx was updated by aforementioned uart_xmit_advance() in omap_8250_dma_tx_complete(). Fix this by using the uart_fifo_out() helper instead of bare kfifo_get(). Based on patch by Mans Rullgard <mans(a)mansr.com> Signed-off-by: Jiri Slaby (SUSE) <jirislaby(a)kernel.org> Fixes: 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") Link: https://lore.kernel.org/all/20250506150748.3162-1-mans@mansr.com/ Reported-by: Mans Rullgard <mans(a)mansr.com> Cc: stable(a)vger.kernel.org --- [v2] S-O-B added --- drivers/tty/serial/8250/8250_omap.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 2a0ce11f405d..72ae08d6204f 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1173,16 +1173,6 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) return 0; } - sg_init_table(&sg, 1); - ret = kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, - UART_XMIT_SIZE, dma->tx_addr); - if (ret != 1) { - serial8250_clear_THRI(p); - return 0; - } - - dma->tx_size = sg_dma_len(&sg); - if (priv->habit & OMAP_DMA_TX_KICK) { unsigned char c; u8 tx_lvl; @@ -1207,18 +1197,22 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) ret = -EBUSY; goto err; } - if (dma->tx_size < 4) { + if (kfifo_len(&tport->xmit_fifo) < 4) { ret = -EINVAL; goto err; } - if (!kfifo_get(&tport->xmit_fifo, &c)) { + if (!uart_fifo_out(&p->port, &c, 1)) { ret = -EINVAL; goto err; } skip_byte = c; - /* now we need to recompute due to kfifo_get */ - kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, - UART_XMIT_SIZE, dma->tx_addr); + } + + sg_init_table(&sg, 1); + ret = kfifo_dma_out_prepare_mapped(&tport->xmit_fifo, &sg, 1, UART_XMIT_SIZE, dma->tx_addr); + if (ret != 1) { + ret = -EINVAL; + goto err; } desc = dmaengine_prep_slave_sg(dma->txchan, &sg, 1, DMA_MEM_TO_DEV, @@ -1228,6 +1222,7 @@ static int omap_8250_tx_dma(struct uart_8250_port *p) goto err; } + dma->tx_size = sg_dma_len(&sg); dma->tx_running = 1; desc->callback = omap_8250_dma_tx_complete; -- 2.49.0

3 months, 3 weeks

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[PATCH 6.1 00/97] 6.1.140-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.1.140 release. There are 97 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, 22 May 2025 12:57:37 +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-6.1.140-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.1.140-rc1 Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: fix pm notifier handling Théo Lebrun <theo.lebrun(a)bootlin.com> spi: cadence-qspi: fix pointer reference in runtime PM hooks Shigeru Yoshida <syoshida(a)redhat.com> ipv4: Fix uninit-value access in __ip_make_skb() Shigeru Yoshida <syoshida(a)redhat.com> ipv6: Fix potential uninit-value access in __ip6_make_skb() Shravya KN <shravya.k-n(a)broadcom.com> bnxt_en: Fix receive ring space parameters when XDP is active Maciej S. Szmigiero <mail(a)maciej.szmigiero.name> platform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it Mark Brown <broonie(a)kernel.org> arm64/sme: Always exit sme_alloc() early with existing storage Florian Westphal <fw(a)strlen.de> netfilter: nf_tables: do not defer rule destruction via call_rcu Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_tables: wait for rcu grace period on net_device removal Florian Westphal <fw(a)strlen.de> netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx Filipe Manana <fdmanana(a)suse.com> btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() Eric Dumazet <edumazet(a)google.com> sctp: add mutual exclusion in proc_sctp_do_udp_port() Ma Wupeng <mawupeng1(a)huawei.com> hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Explicitly specify code model in Makefile Peter Collingbourne <pcc(a)google.com> bpf, arm64: Fix address emission with tag-based KASAN enabled Puranjay Mohan <puranjay(a)kernel.org> bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG Xu Lu <luxu.kernel(a)bytedance.com> riscv: mm: Fix the out of bound issue of vmemmap address Byungchul Park <byungchul(a)sk.com> mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index Feng Tang <feng.tang(a)linux.alibaba.com> selftests/mm: compaction_test: support platform with huge mount of memory GONG Ruiqi <gongruiqi1(a)huawei.com> usb: typec: fix pm usage counter imbalance in ucsi_ccg_sync_control() Dan Carpenter <dan.carpenter(a)linaro.org> usb: typec: fix potential array underflow in ucsi_ccg_sync_control() RD Babiera <rdbabiera(a)google.com> usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: ucsi: displayport: Fix deadlock Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_pci_probe Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanups in cleanup internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanup for early error out in idxd_setup_internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_engines Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_wqs Yemike Abhilash Chandra <y-abhilashchandra(a)ti.com> dmaengine: ti: k3-udma: Use cap_mask directly from dma_device structure instead of a local copy Ronald Wahl <ronald.wahl(a)legrand.com> dmaengine: ti: k3-udma: Add missing locking Nathan Chancellor <nathan(a)kernel.org> net: qede: Initialize qede_ll_ops with designated initializer Fedor Pchelkin <pchelkin(a)ispras.ru> wifi: mt76: disable napi on driver removal Jethro Donaldson <devel(a)jro.nz> smb: client: fix memory leak during error handling for POSIX mkdir Steve Siwinski <ssiwinski(a)atto.com> scsi: sd_zbc: block: Respect bio vector limits for REPORT ZONES buffer Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Set timing registers only once Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Fix role detection on unbind/bind Ma Ke <make24(a)iscas.ac.cn> phy: Fix error handling in tegra_xusb_port_init Steven Rostedt <rostedt(a)goodmis.org> tracing: samples: Initialize trace_array_printk() with the correct function pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace filter command pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace trigger command Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: vmbus: Remove vmbus_sendpacket_pagebuffer() Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Remove rmsg_pgcnt Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Preserve contiguous PFN grouping in the page buffer array Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages Hyejeong Choi <hjeong.choi(a)samsung.com> dma-buf: insert memory barrier before updating num_fences Nicolas Chauvet <kwizart(a)gmail.com> ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera Christian Heusel <christian(a)heusel.eu> ALSA: usb-audio: Add sample rate quirk for Audioengine D1 Wentao Liang <vulab(a)iscas.ac.cn> ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() Jeremy Linton <jeremy.linton(a)arm.com> ACPI: PPTT: Fix processor subtable walk Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Avoid flooding unnecessary info messages Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Correct the reply value when AUX write incomplete Filipe Manana <fdmanana(a)suse.com> btrfs: fix discard worker infinite loop after disabling discard Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Fix MAX_REG_OFFSET calculation Nathan Lynch <nathan.lynch(a)amd.com> dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pnfs: Reset the layout state after a layoutreturn Pengtao He <hept.hept.hept(a)gmail.com> net/tls: fix kernel panic when alloc_page failed Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: macsec: Fix incorrect max transmit size in TX secy Cosmin Tanislav <demonsingur(a)gmail.com> regulator: max20086: fix invalid memory access Abdun Nihaal <abdun.nihaal(a)gmail.com> qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() Carolina Jubran <cjubran(a)nvidia.com> net/mlx5e: Disable MACsec offload for uplink representor profile Geert Uytterhoeven <geert+renesas(a)glider.be> ALSA: sh: SND_AICA should depend on SH_DMA_API Keith Busch <kbusch(a)kernel.org> nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable Kees Cook <kees(a)kernel.org> nvme-pci: make nvme_pci_npages_prp() __always_inline Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING Mathieu Othacehe <othacehe(a)gnu.org> net: cadence: macb: Fix a possible deadlock in macb_halt_tx. Andrew Jeffery <andrew(a)codeconstruct.com.au> net: mctp: Ensure keys maintain only one ref to corresponding dev Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: Flush gso_skb list too during ->change() Geert Uytterhoeven <geert+renesas(a)glider.be> spi: loopback-test: Do not split 1024-byte hexdumps Li Lingfeng <lilingfeng3(a)huawei.com> nfs: handle failure of nfs_get_lock_context in unlock path Henry Martin <bsdhenrymartin(a)gmail.com> HID: uclogic: Add NULL check in uclogic_input_configured() Qasim Ijaz <qasdev00(a)gmail.com> HID: thrustmaster: fix memory leak in thrustmaster_interrupts() Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable() David Lechner <dlechner(a)baylibre.com> iio: chemical: sps30: use aligned_s64 for timestamp Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7768-1: Fix insufficient alignment of timestamp. Alex Deucher <alexander.deucher(a)amd.com> Revert "drm/amd: Stop evicting resources on APUs in suspend" Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Add Suspend/Hibernate notification callback support Zhigang Luo <Zhigang.Luo(a)amd.com> drm/amdgpu: trigger flr_work if reading pf2vf data failed Ma Jun <Jun.Ma2(a)amd.com> drm/amdgpu: Fix the runtime resume failure issue Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Stop evicting resources on APUs in suspend Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7266: Fix potential timestamp alignment issue. Michal Suchanek <msuchanek(a)suse.de> tpm: tis: Double the timeout B to 4s Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: probes: Fix a possible race in trace_probe_log APIs Hans de Goede <hdegoede(a)redhat.com> platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection Kees Cook <kees(a)kernel.org> binfmt_elf: Move brk for static PIE even if ASLR disabled Kees Cook <kees(a)kernel.org> binfmt_elf: Honor PT_LOAD alignment for static PIE Kees Cook <kees(a)kernel.org> binfmt_elf: Calculate total_size earlier Kees Cook <kees(a)kernel.org> selftests/exec: Build both static and non-static load_address tests Kees Cook <keescook(a)chromium.org> binfmt_elf: Leave a gap between .bss and brk Muhammad Usama Anjum <usama.anjum(a)collabora.com> selftests/exec: load_address: conform test to TAP format output Kees Cook <keescook(a)chromium.org> binfmt_elf: elf_bss no longer used by load_elf_binary() Eric W. Biederman <ebiederm(a)xmission.com> binfmt_elf: Support segments with 0 filesz and misaligned starts Kees Cook <keescook(a)chromium.org> binfmt: Fix whitespace issues ------------- Diffstat: Makefile | 4 +- arch/arm64/kernel/fpsimd.c | 6 +- arch/arm64/net/bpf_jit_comp.c | 12 +- arch/loongarch/Makefile | 2 +- arch/loongarch/include/asm/ptrace.h | 2 +- arch/riscv/include/asm/page.h | 1 + arch/riscv/include/asm/pgtable.h | 2 +- arch/riscv/mm/init.c | 17 +- block/bio.c | 2 +- drivers/acpi/pptt.c | 11 +- drivers/char/tpm/tpm_tis_core.h | 2 +- drivers/clocksource/i8253.c | 4 +- drivers/dma-buf/dma-resv.c | 5 +- drivers/dma/dmatest.c | 6 +- drivers/dma/idxd/init.c | 145 +++++++--- drivers/dma/ti/k3-udma.c | 10 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 51 +++- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 29 +- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 3 + drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 + drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 2 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 16 +- drivers/hid/hid-thrustmaster.c | 1 + drivers/hid/hid-uclogic-core.c | 7 +- drivers/hv/channel.c | 65 +---- drivers/iio/adc/ad7266.c | 2 +- drivers/iio/adc/ad7768-1.c | 2 +- drivers/iio/chemical/sps30.c | 2 +- drivers/infiniband/sw/rxe/rxe_cq.c | 5 +- drivers/net/dsa/sja1105/sja1105_main.c | 6 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 +- drivers/net/ethernet/cadence/macb_main.c | 19 +- .../ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 3 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 + drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +- drivers/net/hyperv/hyperv_net.h | 13 +- drivers/net/hyperv/netvsc.c | 57 +++- drivers/net/hyperv/netvsc_drv.c | 62 +---- drivers/net/hyperv/rndis_filter.c | 24 +- drivers/net/wireless/mediatek/mt76/dma.c | 1 + drivers/nvme/host/pci.c | 4 +- drivers/phy/renesas/phy-rcar-gen3-usb2.c | 38 ++- drivers/phy/tegra/xusb.c | 8 +- drivers/platform/x86/amd/pmc.c | 8 +- drivers/platform/x86/asus-wmi.c | 3 +- drivers/regulator/max20086-regulator.c | 7 +- drivers/scsi/sd_zbc.c | 6 +- drivers/scsi/storvsc_drv.c | 1 + drivers/spi/spi-cadence-quadspi.c | 6 +- drivers/spi/spi-loopback-test.c | 2 +- drivers/usb/typec/altmodes/displayport.c | 18 +- drivers/usb/typec/ucsi/displayport.c | 19 +- drivers/usb/typec/ucsi/ucsi.c | 34 +++ drivers/usb/typec/ucsi/ucsi.h | 3 + drivers/usb/typec/ucsi/ucsi_ccg.c | 5 + fs/binfmt_elf.c | 293 ++++++++++++--------- fs/binfmt_elf_fdpic.c | 2 +- fs/btrfs/discard.c | 17 +- fs/btrfs/extent-tree.c | 25 +- fs/exec.c | 2 +- fs/nfs/nfs4proc.c | 9 +- fs/nfs/pnfs.c | 9 + fs/smb/client/smb2pdu.c | 2 +- include/linux/bio.h | 1 + include/linux/hyperv.h | 7 - include/linux/tpm.h | 2 +- include/net/netfilter/nf_tables.h | 3 +- include/net/sch_generic.h | 15 ++ include/uapi/linux/elf.h | 2 +- kernel/trace/trace_dynevent.c | 16 +- kernel/trace/trace_dynevent.h | 1 + kernel/trace/trace_events_trigger.c | 2 +- kernel/trace/trace_functions.c | 6 +- kernel/trace/trace_kprobe.c | 2 +- kernel/trace/trace_probe.c | 9 + kernel/trace/trace_uprobe.c | 2 +- mm/memory_hotplug.c | 6 +- mm/migrate.c | 8 + net/ipv4/ip_output.c | 3 +- net/ipv4/raw.c | 3 + net/ipv6/ip6_output.c | 3 +- net/mctp/route.c | 4 +- net/netfilter/nf_tables_api.c | 54 ++-- net/netfilter/nft_immediate.c | 2 +- net/sched/sch_codel.c | 2 +- net/sched/sch_fq.c | 2 +- net/sched/sch_fq_codel.c | 2 +- net/sched/sch_fq_pie.c | 2 +- net/sched/sch_hhf.c | 2 +- net/sched/sch_pie.c | 2 +- net/sctp/sysctl.c | 4 + net/tls/tls_strp.c | 3 +- samples/ftrace/sample-trace-array.c | 2 +- sound/pci/es1968.c | 6 +- sound/sh/Kconfig | 2 +- sound/usb/quirks.c | 4 + tools/testing/selftests/exec/Makefile | 19 +- tools/testing/selftests/exec/load_address.c | 83 ++++-- tools/testing/selftests/vm/compaction_test.c | 19 +- 103 files changed, 937 insertions(+), 530 deletions(-)

3 months, 3 weeks

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[PATCH 6.6 000/117] 6.6.92-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.6.92 release. There are 117 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, 22 May 2025 12:57:37 +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-6.6.92-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.6.92-rc1 Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: fix pm notifier handling Dan Carpenter <dan.carpenter(a)linaro.org> phy: tegra: xusb: remove a stray unlock Filipe Manana <fdmanana(a)suse.com> btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() Eric Dumazet <edumazet(a)google.com> sctp: add mutual exclusion in proc_sctp_do_udp_port() Ma Wupeng <mawupeng1(a)huawei.com> hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio Tom Lendacky <thomas.lendacky(a)amd.com> memblock: Accept allocated memory before use in memblock_double_array() Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Explicitly specify code model in Makefile Peter Collingbourne <pcc(a)google.com> bpf, arm64: Fix address emission with tag-based KASAN enabled Puranjay Mohan <puranjay(a)kernel.org> bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG Zi Yan <ziy(a)nvidia.com> mm/migrate: correct nr_failed in migrate_pages_sync() Feng Tang <feng.tang(a)linux.alibaba.com> selftests/mm: compaction_test: support platform with huge mount of memory Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: ucsi: displayport: Fix deadlock Neeraj Sanjay Kale <neeraj.sanjaykale(a)nxp.com> Bluetooth: btnxpuart: Fix kernel panic during FW release Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> mm/page_alloc: fix race condition in unaccepted memory handling Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Fix build error for its_static_thunk() Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Refactor remove call with idxd_cleanup() helper Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_pci_probe Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanups in cleanup internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanup for early error out in idxd_setup_internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_engines Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_wqs Yemike Abhilash Chandra <y-abhilashchandra(a)ti.com> dmaengine: ti: k3-udma: Use cap_mask directly from dma_device structure instead of a local copy Ronald Wahl <ronald.wahl(a)legrand.com> dmaengine: ti: k3-udma: Add missing locking Nathan Chancellor <nathan(a)kernel.org> net: qede: Initialize qede_ll_ops with designated initializer Fedor Pchelkin <pchelkin(a)ispras.ru> wifi: mt76: disable napi on driver removal Aaron Kling <webgeek1234(a)gmail.com> spi: tegra114: Use value to check for invalid delays Jethro Donaldson <devel(a)jro.nz> smb: client: fix memory leak during error handling for POSIX mkdir Steve Siwinski <ssiwinski(a)atto.com> scsi: sd_zbc: block: Respect bio vector limits for REPORT ZONES buffer Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Set timing registers only once Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Fix role detection on unbind/bind Ma Ke <make24(a)iscas.ac.cn> phy: Fix error handling in tegra_xusb_port_init Wayne Chang <waynec(a)nvidia.com> phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking Steven Rostedt <rostedt(a)goodmis.org> tracing: samples: Initialize trace_array_printk() with the correct function pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace filter command pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace trigger command Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: vmbus: Remove vmbus_sendpacket_pagebuffer() Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Remove rmsg_pgcnt Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Preserve contiguous PFN grouping in the page buffer array Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages Hyejeong Choi <hjeong.choi(a)samsung.com> dma-buf: insert memory barrier before updating num_fences Nicolas Chauvet <kwizart(a)gmail.com> ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera Christian Heusel <christian(a)heusel.eu> ALSA: usb-audio: Add sample rate quirk for Audioengine D1 Wentao Liang <vulab(a)iscas.ac.cn> ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() Jeremy Linton <jeremy.linton(a)arm.com> ACPI: PPTT: Fix processor subtable walk Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Avoid flooding unnecessary info messages Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Correct the reply value when AUX write incomplete Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove redundant code about resume_era Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove user_{en,dis}able_single_step() Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Fix MAX_REG_OFFSET calculation Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Save and restore CSR.CNTC for hibernation Tianyang Zhang <zhangtianyang(a)loongson.cn> LoongArch: Prevent cond_resched() occurring within kernel-fpu Jan Kara <jack(a)suse.cz> udf: Make sure i_lenExtents is uptodate on inode eviction Nathan Lynch <nathan.lynch(a)amd.com> dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pnfs: Reset the layout state after a layoutreturn Gerhard Engleder <gerhard(a)engleder-embedded.com> tsnep: fix timestamping with a stacked DSA driver Gerhard Engleder <gerhard(a)engleder-embedded.com> tsnep: Inline small fragments within TX descriptor Pengtao He <hept.hept.hept(a)gmail.com> net/tls: fix kernel panic when alloc_page failed Ido Schimmel <idosch(a)nvidia.com> mlxsw: spectrum_router: Fix use-after-free when deleting GRE net devices Kees Cook <kees(a)kernel.org> wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Hariprasad Kelam <hkelam(a)marvell.com> octeontx2-af: Fix CGX Receive counters Bo-Cun Chen <bc-bocun.chen(a)mediatek.com> net: ethernet: mtk_eth_soc: fix typo for declaration MT7988 ESW capability Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: macsec: Fix incorrect max transmit size in TX secy Cosmin Tanislav <demonsingur(a)gmail.com> regulator: max20086: fix invalid memory access Abdun Nihaal <abdun.nihaal(a)gmail.com> qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() Carolina Jubran <cjubran(a)nvidia.com> net/mlx5e: Disable MACsec offload for uplink representor profile Geert Uytterhoeven <geert+renesas(a)glider.be> ALSA: sh: SND_AICA should depend on SH_DMA_API Keith Busch <kbusch(a)kernel.org> nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable Kees Cook <kees(a)kernel.org> nvme-pci: make nvme_pci_npages_prp() __always_inline Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING Mathieu Othacehe <othacehe(a)gnu.org> net: cadence: macb: Fix a possible deadlock in macb_halt_tx. Takashi Iwai <tiwai(a)suse.de> ALSA: ump: Fix a typo of snd_ump_stream_msg_device_info Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix delivery of UMP events to group ports Andrew Jeffery <andrew(a)codeconstruct.com.au> net: mctp: Ensure keys maintain only one ref to corresponding dev Matt Johnston <matt(a)codeconstruct.com.au> net: mctp: Don't access ifa_index when missing Eric Dumazet <edumazet(a)google.com> mctp: no longer rely on net->dev_index_head[] Hangbin Liu <liuhangbin(a)gmail.com> tools/net/ynl: ethtool: fix crash when Hardware Clock info is missing Rahul Rameshbabu <rrameshbabu(a)nvidia.com> tools: ynl: ethtool.py: Output timestamping statistics from tsinfo-get operation Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: Flush gso_skb list too during ->change() Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: MGMT: Fix MGMT_OP_ADD_DEVICE invalid device flags Geert Uytterhoeven <geert+renesas(a)glider.be> spi: loopback-test: Do not split 1024-byte hexdumps Li Lingfeng <lilingfeng3(a)huawei.com> nfs: handle failure of nfs_get_lock_context in unlock path Henry Martin <bsdhenrymartin(a)gmail.com> HID: uclogic: Add NULL check in uclogic_input_configured() Qasim Ijaz <qasdev00(a)gmail.com> HID: thrustmaster: fix memory leak in thrustmaster_interrupts() Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug David Lechner <dlechner(a)baylibre.com> iio: chemical: sps30: use aligned_s64 for timestamp Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7768-1: Fix insufficient alignment of timestamp. Alex Deucher <alexander.deucher(a)amd.com> Revert "drm/amd: Stop evicting resources on APUs in suspend" Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Add Suspend/Hibernate notification callback support Zhigang Luo <Zhigang.Luo(a)amd.com> drm/amdgpu: trigger flr_work if reading pf2vf data failed Ma Jun <Jun.Ma2(a)amd.com> drm/amdgpu: Fix the runtime resume failure issue Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Stop evicting resources on APUs in suspend Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7266: Fix potential timestamp alignment issue. Mikhail Lobanov <m.lobanov(a)rosa.ru> KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Peter Gonda <pgonda(a)google.com> KVM: SVM: Update SEV-ES shutdown intercepts with more metadata Cristian Marussi <cristian.marussi(a)arm.com> firmware: arm_scmi: Fix timeout checks on polling path Luke Parkin <luke.parkin(a)arm.com> firmware: arm_scmi: Track basic SCMI communication debug metrics Luke Parkin <luke.parkin(a)arm.com> firmware: arm_scmi: Add support for debug metrics at the interface Cristian Marussi <cristian.marussi(a)arm.com> firmware: arm_scmi: Add message dump traces for bad and unexpected replies Cristian Marussi <cristian.marussi(a)arm.com> firmware: arm_scmi: Add helper to trace bad messages Michal Suchanek <msuchanek(a)suse.de> tpm: tis: Double the timeout B to 4s Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: probes: Fix a possible race in trace_probe_log APIs Waiman Long <longman(a)redhat.com> cgroup/cpuset: Extend kthread_is_per_cpu() check to all PF_NO_SETAFFINITY tasks Hans de Goede <hdegoede(a)redhat.com> platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection Runhua He <hua(a)aosc.io> platform/x86/amd/pmc: Declare quirk_spurious_8042 for MECHREVO Wujie 14XA (GX4HRXL) Kees Cook <kees(a)kernel.org> binfmt_elf: Move brk for static PIE even if ASLR disabled Kees Cook <kees(a)kernel.org> binfmt_elf: Honor PT_LOAD alignment for static PIE Kees Cook <kees(a)kernel.org> binfmt_elf: Calculate total_size earlier Kees Cook <kees(a)kernel.org> selftests/exec: Build both static and non-static load_address tests Kees Cook <keescook(a)chromium.org> binfmt_elf: Leave a gap between .bss and brk Muhammad Usama Anjum <usama.anjum(a)collabora.com> selftests/exec: load_address: conform test to TAP format output Kees Cook <keescook(a)chromium.org> binfmt_elf: elf_bss no longer used by load_elf_binary() Eric W. Biederman <ebiederm(a)xmission.com> binfmt_elf: Support segments with 0 filesz and misaligned starts Stephen Smalley <stephen.smalley.work(a)gmail.com> fs/xattr.c: fix simple_xattr_list to always include security.* xattrs ------------- Diffstat: Makefile | 4 +- arch/arm64/net/bpf_jit_comp.c | 12 +- arch/loongarch/Makefile | 2 +- arch/loongarch/include/asm/ptrace.h | 2 +- arch/loongarch/include/asm/uprobes.h | 1 - arch/loongarch/kernel/kfpu.c | 22 +- arch/loongarch/kernel/time.c | 2 +- arch/loongarch/kernel/uprobes.c | 11 +- arch/loongarch/power/hibernate.c | 3 + arch/x86/kernel/alternative.c | 17 +- arch/x86/kvm/smm.c | 1 + arch/x86/kvm/svm/svm.c | 19 +- block/bio.c | 2 +- drivers/acpi/pptt.c | 11 +- drivers/bluetooth/btnxpuart.c | 6 +- drivers/char/tpm/tpm_tis_core.h | 2 +- drivers/dma-buf/dma-resv.c | 5 +- drivers/dma/dmatest.c | 6 +- drivers/dma/idxd/init.c | 159 ++++++++---- drivers/dma/ti/k3-udma.c | 10 +- drivers/firmware/arm_scmi/Kconfig | 14 + drivers/firmware/arm_scmi/common.h | 35 +++ drivers/firmware/arm_scmi/driver.c | 89 ++++++- drivers/firmware/arm_scmi/mailbox.c | 3 + drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 51 +++- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 29 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 3 + drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 + drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 2 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 16 +- drivers/hid/hid-thrustmaster.c | 1 + drivers/hid/hid-uclogic-core.c | 7 +- drivers/hv/channel.c | 65 +---- drivers/iio/adc/ad7266.c | 2 +- drivers/iio/adc/ad7768-1.c | 2 +- drivers/iio/chemical/sps30.c | 2 +- drivers/infiniband/sw/rxe/rxe_cq.c | 5 +- drivers/net/dsa/sja1105/sja1105_main.c | 6 +- drivers/net/ethernet/cadence/macb_main.c | 19 +- drivers/net/ethernet/engleder/tsnep_hw.h | 2 + drivers/net/ethernet/engleder/tsnep_main.c | 131 +++++++--- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 5 + .../ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 3 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 + .../net/ethernet/mellanox/mlxsw/spectrum_router.c | 3 + drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +- drivers/net/hyperv/hyperv_net.h | 13 +- drivers/net/hyperv/netvsc.c | 57 ++++- drivers/net/hyperv/netvsc_drv.c | 62 +---- drivers/net/hyperv/rndis_filter.c | 24 +- drivers/net/wireless/mediatek/mt76/dma.c | 1 + drivers/nvme/host/pci.c | 4 +- drivers/phy/renesas/phy-rcar-gen3-usb2.c | 38 ++- drivers/phy/tegra/xusb-tegra186.c | 46 ++-- drivers/phy/tegra/xusb.c | 8 +- drivers/platform/x86/amd/pmc/pmc-quirks.c | 7 + drivers/platform/x86/asus-wmi.c | 3 +- drivers/regulator/max20086-regulator.c | 7 +- drivers/scsi/sd_zbc.c | 6 +- drivers/scsi/storvsc_drv.c | 1 + drivers/spi/spi-loopback-test.c | 2 +- drivers/spi/spi-tegra114.c | 6 +- drivers/usb/gadget/function/f_midi2.c | 2 +- drivers/usb/typec/ucsi/displayport.c | 19 +- drivers/usb/typec/ucsi/ucsi.c | 34 +++ drivers/usb/typec/ucsi/ucsi.h | 2 + fs/binfmt_elf.c | 281 ++++++++++++--------- fs/btrfs/extent-tree.c | 25 +- fs/nfs/nfs4proc.c | 9 +- fs/nfs/pnfs.c | 9 + fs/smb/client/smb2pdu.c | 2 +- fs/udf/truncate.c | 2 +- fs/xattr.c | 24 ++ include/linux/bio.h | 1 + include/linux/hyperv.h | 7 - include/linux/tpm.h | 2 +- include/net/sch_generic.h | 15 ++ include/sound/ump_msg.h | 4 +- kernel/cgroup/cpuset.c | 6 +- kernel/trace/trace_dynevent.c | 16 +- kernel/trace/trace_dynevent.h | 1 + kernel/trace/trace_events_trigger.c | 2 +- kernel/trace/trace_functions.c | 6 +- kernel/trace/trace_kprobe.c | 2 +- kernel/trace/trace_probe.c | 9 + kernel/trace/trace_uprobe.c | 2 +- mm/memblock.c | 9 +- mm/memory_hotplug.c | 6 +- mm/migrate.c | 16 +- mm/page_alloc.c | 27 -- net/bluetooth/mgmt.c | 9 +- net/mac80211/main.c | 6 +- net/mctp/device.c | 65 +++-- net/mctp/route.c | 4 +- net/sched/sch_codel.c | 2 +- net/sched/sch_fq.c | 2 +- net/sched/sch_fq_codel.c | 2 +- net/sched/sch_fq_pie.c | 2 +- net/sched/sch_hhf.c | 2 +- net/sched/sch_pie.c | 2 +- net/sctp/sysctl.c | 4 + net/tls/tls_strp.c | 3 +- samples/ftrace/sample-trace-array.c | 2 +- sound/core/seq/seq_clientmgr.c | 52 ++-- sound/core/seq/seq_ump_convert.c | 18 ++ sound/core/seq/seq_ump_convert.h | 1 + sound/pci/es1968.c | 6 +- sound/sh/Kconfig | 2 +- sound/usb/quirks.c | 4 + tools/net/ynl/ethtool.py | 29 ++- tools/testing/selftests/exec/Makefile | 19 +- tools/testing/selftests/exec/load_address.c | 83 ++++-- tools/testing/selftests/mm/compaction_test.c | 19 +- 118 files changed, 1294 insertions(+), 693 deletions(-)

3 months, 3 weeks

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[PATCH 6.12 000/143] 6.12.30-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.12.30 release. There are 143 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, 22 May 2025 12:57:37 +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-6.12.30-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.12.30-rc1 Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: fix pm notifier handling Dan Carpenter <dan.carpenter(a)linaro.org> phy: tegra: xusb: remove a stray unlock Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: ucsi: displayport: Fix deadlock Fabio Estevam <festevam(a)denx.de> drm/tiny: panel-mipi-dbi: Use drm_client_setup_with_fourcc() Thomas Zimmermann <tzimmermann(a)suse.de> drm/panel-mipi-dbi: Run DRM default client setup Thomas Zimmermann <tzimmermann(a)suse.de> drm/fbdev-dma: Support struct drm_driver.fbdev_probe Neeraj Sanjay Kale <neeraj.sanjaykale(a)nxp.com> Bluetooth: btnxpuart: Fix kernel panic during FW release Luca Ceresoli <luca.ceresoli(a)bootlin.com> iio: light: opt3001: fix deadlock due to concurrent flag access Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> accel/ivpu: Fix fw log printing Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> accel/ivpu: Refactor functions in ivpu_fw_log.c Tomasz Rusinowicz <tomasz.rusinowicz(a)intel.com> accel/ivpu: Reset fw log on cold boot Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> accel/ivpu: Rename ivpu_log_level to fw_log_level Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> mm/page_alloc: fix race condition in unaccepted memory handling Daniele Ceraolo Spurio <daniele.ceraolospurio(a)intel.com> drm/xe/gsc: do not flush the GSC worker from the reset path Ritvik Budhiraja <rbudhiraja(a)microsoft.com> CIFS: New mount option for cifs.upcall namespace resolution Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Refactor remove call with idxd_cleanup() helper Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_pci_probe Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanups in cleanup internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanup for early error out in idxd_setup_internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_engines Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_wqs Yemike Abhilash Chandra <y-abhilashchandra(a)ti.com> dmaengine: ti: k3-udma: Use cap_mask directly from dma_device structure instead of a local copy Ronald Wahl <ronald.wahl(a)legrand.com> dmaengine: ti: k3-udma: Add missing locking Barry Song <baohua(a)kernel.org> mm: userfaultfd: correct dirty flags set for both present and swap pte Nathan Chancellor <nathan(a)kernel.org> net: qede: Initialize qede_ll_ops with designated initializer Steven Rostedt <rostedt(a)goodmis.org> ring-buffer: Fix persistent buffer when commit page is the reader page Fedor Pchelkin <pchelkin(a)ispras.ru> wifi: mt76: disable napi on driver removal Jarkko Sakkinen <jarkko(a)kernel.org> tpm: Mask TPM RC in tpm2_start_auth_session() Aaron Kling <webgeek1234(a)gmail.com> spi: tegra114: Use value to check for invalid delays Jethro Donaldson <devel(a)jro.nz> smb: client: fix memory leak during error handling for POSIX mkdir Steve Siwinski <ssiwinski(a)atto.com> scsi: sd_zbc: block: Respect bio vector limits for REPORT ZONES buffer Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Set timing registers only once Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Fix role detection on unbind/bind Ma Ke <make24(a)iscas.ac.cn> phy: Fix error handling in tegra_xusb_port_init Wayne Chang <waynec(a)nvidia.com> phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking Steven Rostedt <rostedt(a)goodmis.org> tracing: samples: Initialize trace_array_printk() with the correct function pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace filter command pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace trigger command Nathan Chancellor <nathan(a)kernel.org> kbuild: Disable -Wdefault-const-init-unsafe Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: vmbus: Remove vmbus_sendpacket_pagebuffer() Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges Dragan Simic <dsimic(a)manjaro.org> arm64: dts: rockchip: Remove overdrive-mode OPPs from RK3588J SoC dtsi Christian Hewitt <christianshewitt(a)gmail.com> arm64: dts: amlogic: dreambox: fix missing clkc_audio node Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Remove rmsg_pgcnt Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Preserve contiguous PFN grouping in the page buffer array Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages Hyejeong Choi <hjeong.choi(a)samsung.com> dma-buf: insert memory barrier before updating num_fences Nicolas Chauvet <kwizart(a)gmail.com> ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera Christian Heusel <christian(a)heusel.eu> ALSA: usb-audio: Add sample rate quirk for Audioengine D1 Wentao Liang <vulab(a)iscas.ac.cn> ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() Jeremy Linton <jeremy.linton(a)arm.com> ACPI: PPTT: Fix processor subtable walk Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> gpio: pca953x: fix IRQ storm on system wake up Alexey Makhalov <alexey.makhalov(a)broadcom.com> MAINTAINERS: Update Alexey Makhalov's email address Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Avoid flooding unnecessary info messages Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Correct the reply value when AUX write incomplete Philip Yang <Philip.Yang(a)amd.com> drm/amdgpu: csa unmap use uninterruptible lock Tim Huang <tim.huang(a)amd.com> drm/amdgpu: fix incorrect MALL size for GFX1151 David (Ming Qiang) Wu <David.Wu3(a)amd.com> drm/amdgpu: read back register after written for VCN v4.0.5 Melissa Wen <mwen(a)igalia.com> Revert "drm/amd/display: Hardware cursor changes color when switched to software cursor" Kyoji Ogasawara <sawara04.o(a)gmail.com> btrfs: add back warning for mount option commit values exceeding 300 Boris Burkov <boris(a)bur.io> btrfs: fix folio leak in submit_one_async_extent() Filipe Manana <fdmanana(a)suse.com> btrfs: fix discard worker infinite loop after disabling discard Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove redundant code about resume_era Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove user_{en,dis}able_single_step() Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Fix MAX_REG_OFFSET calculation Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Save and restore CSR.CNTC for hibernation Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Move __arch_cpu_idle() to .cpuidle.text section Tianyang Zhang <zhangtianyang(a)loongson.cn> LoongArch: Prevent cond_resched() occurring within kernel-fpu Rong Zhang <i(a)rong.moe> HID: bpf: abort dispatch if device destroyed Jan Kara <jack(a)suse.cz> udf: Make sure i_lenExtents is uptodate on inode eviction Tejun Heo <tj(a)kernel.org> sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator Nathan Lynch <nathan.lynch(a)amd.com> dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pnfs: Reset the layout state after a layoutreturn Gerhard Engleder <gerhard(a)engleder-embedded.com> tsnep: fix timestamping with a stacked DSA driver Pengtao He <hept.hept.hept(a)gmail.com> net/tls: fix kernel panic when alloc_page failed Ido Schimmel <idosch(a)nvidia.com> mlxsw: spectrum_router: Fix use-after-free when deleting GRE net devices Kees Cook <kees(a)kernel.org> wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: Do not reallocate all ntuple filters Hariprasad Kelam <hkelam(a)marvell.com> octeontx2-af: Fix CGX Receive counters Bo-Cun Chen <bc-bocun.chen(a)mediatek.com> net: ethernet: mtk_eth_soc: fix typo for declaration MT7988 ESW capability Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: macsec: Fix incorrect max transmit size in TX secy Jakub Kicinski <kuba(a)kernel.org> netlink: specs: tc: all actions are indexed arrays Jakub Kicinski <kuba(a)kernel.org> netlink: specs: tc: fix a couple of attribute names Umesh Nerlige Ramappa <umesh.nerlige.ramappa(a)intel.com> drm/xe: Save CTX_TIMESTAMP mmio value instead of LRC value Cosmin Tanislav <demonsingur(a)gmail.com> regulator: max20086: fix invalid memory access Abdun Nihaal <abdun.nihaal(a)gmail.com> qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() Carolina Jubran <cjubran(a)nvidia.com> net/mlx5e: Disable MACsec offload for uplink representor profile Konstantin Shkolnyy <kshk(a)linux.ibm.com> vsock/test: Fix occasional failure in SIOCOUTQ tests Jonas Gorski <jonas.gorski(a)gmail.com> net: dsa: b53: prevent standalone from trying to forward to other ports Geert Uytterhoeven <geert+renesas(a)glider.be> ALSA: sh: SND_AICA should depend on SH_DMA_API Keith Busch <kbusch(a)kernel.org> nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable Kees Cook <kees(a)kernel.org> nvme-pci: make nvme_pci_npages_prp() __always_inline Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING Mathieu Othacehe <m.othacehe(a)gmail.com> net: cadence: macb: Fix a possible deadlock in macb_halt_tx. Takashi Iwai <tiwai(a)suse.de> ALSA: ump: Fix a typo of snd_ump_stream_msg_device_info Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix delivery of UMP events to group ports Andrew Jeffery <andrew(a)codeconstruct.com.au> net: mctp: Ensure keys maintain only one ref to corresponding dev Cosmin Ratiu <cratiu(a)nvidia.com> tests/ncdevmem: Fix double-free of queue array Stanislav Fomichev <sdf(a)fomichev.me> selftests: ncdevmem: Switch to AF_INET6 Stanislav Fomichev <sdf(a)fomichev.me> selftests: ncdevmem: Make client_ip optional Stanislav Fomichev <sdf(a)fomichev.me> selftests: ncdevmem: Unify error handling Stanislav Fomichev <sdf(a)fomichev.me> selftests: ncdevmem: Separate out dmabuf provider Stanislav Fomichev <sdf(a)fomichev.me> selftests: ncdevmem: Redirect all non-payload output to stderr Matt Johnston <matt(a)codeconstruct.com.au> net: mctp: Don't access ifa_index when missing Eric Dumazet <edumazet(a)google.com> mctp: no longer rely on net->dev_index_head[] Hangbin Liu <liuhangbin(a)gmail.com> tools/net/ynl: ethtool: fix crash when Hardware Clock info is missing Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: Flush gso_skb list too during ->change() Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: MGMT: Fix MGMT_OP_ADD_DEVICE invalid device flags Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem Geert Uytterhoeven <geert+renesas(a)glider.be> spi: loopback-test: Do not split 1024-byte hexdumps Li Lingfeng <lilingfeng3(a)huawei.com> nfs: handle failure of nfs_get_lock_context in unlock path Henry Martin <bsdhenrymartin(a)gmail.com> HID: uclogic: Add NULL check in uclogic_input_configured() Qasim Ijaz <qasdev00(a)gmail.com> HID: thrustmaster: fix memory leak in thrustmaster_interrupts() Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug Koichiro Den <koichiro.den(a)canonical.com> virtio_net: ensure netdev_tx_reset_queue is called on bind xsk for tx Koichiro Den <koichiro.den(a)canonical.com> virtio_ring: add a func argument 'recycle_done' to virtqueue_reset() David Lechner <dlechner(a)baylibre.com> iio: chemical: sps30: use aligned_s64 for timestamp Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7768-1: Fix insufficient alignment of timestamp. Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: Avoid event polling busyloop if pending rx transfers are inactive. Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: Improve performance by removing delay in transfer event polling. Alex Deucher <alexander.deucher(a)amd.com> Revert "drm/amd: Stop evicting resources on APUs in suspend" Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Add Suspend/Hibernate notification callback support David Lechner <dlechner(a)baylibre.com> iio: pressure: mprls0025pa: use aligned_s64 for timestamp David Lechner <dlechner(a)baylibre.com> iio: chemical: pms7003: use aligned_s64 for timestamp Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7266: Fix potential timestamp alignment issue. Sean Christopherson <seanjc(a)google.com> KVM: x86/mmu: Prevent installing hugepages when mem attributes are changing Isaku Yamahata <isaku.yamahata(a)intel.com> KVM: Add member to struct kvm_gfn_range to indicate private/shared Naman Jain <namjain(a)linux.microsoft.com> uio_hv_generic: Fix sysfs creation path for ring buffer Michal Suchanek <msuchanek(a)suse.de> tpm: tis: Double the timeout B to 4s Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: probes: Fix a possible race in trace_probe_log APIs Waiman Long <longman(a)redhat.com> cgroup/cpuset: Extend kthread_is_per_cpu() check to all PF_NO_SETAFFINITY tasks Himanshu Bhavani <himanshu.bhavani(a)siliconsignals.io> arm64: dts: imx8mp-var-som: Fix LDO5 shutdown causing SD card timeout Hans de Goede <hdegoede(a)redhat.com> platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection Runhua He <hua(a)aosc.io> platform/x86/amd/pmc: Declare quirk_spurious_8042 for MECHREVO Wujie 14XA (GX4HRXL) Kees Cook <kees(a)kernel.org> binfmt_elf: Move brk for static PIE even if ASLR disabled Ze Huang <huangze(a)whut.edu.cn> riscv: dts: sophgo: fix DMA data-width configuration for CV18xx Mario Limonciello <mario.limonciello(a)amd.com> drivers/platform/x86/amd: pmf: Check for invalid Smart PC Policies Mario Limonciello <mario.limonciello(a)amd.com> drivers/platform/x86/amd: pmf: Check for invalid sideloaded Smart PC Policies Stephen Smalley <stephen.smalley.work(a)gmail.com> fs/xattr.c: fix simple_xattr_list to always include security.* xattrs Tom Vincent <linux(a)tlvince.com> arm64: dts: rockchip: Assign RT5616 MCLK rate on rk3588-friendlyelec-cm3588 ------------- Diffstat: Documentation/netlink/specs/tc.yaml | 10 +- MAINTAINERS | 6 +- Makefile | 4 +- .../boot/dts/amlogic/meson-g12b-dreambox.dtsi | 4 + arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi | 12 +- .../dts/rockchip/rk3588-friendlyelec-cm3588.dtsi | 4 + arch/arm64/boot/dts/rockchip/rk3588j.dtsi | 53 +-- arch/loongarch/include/asm/ptrace.h | 2 +- arch/loongarch/include/asm/uprobes.h | 1 - arch/loongarch/kernel/genex.S | 7 +- arch/loongarch/kernel/kfpu.c | 22 +- arch/loongarch/kernel/time.c | 2 +- arch/loongarch/kernel/uprobes.c | 11 +- arch/loongarch/power/hibernate.c | 3 + arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 2 +- arch/x86/kvm/mmu/mmu.c | 83 ++++- block/bio.c | 2 +- drivers/accel/ivpu/ivpu_debugfs.c | 2 +- drivers/accel/ivpu/ivpu_fw.c | 4 +- drivers/accel/ivpu/ivpu_fw_log.c | 119 +++--- drivers/accel/ivpu/ivpu_fw_log.h | 9 +- drivers/accel/ivpu/ivpu_pm.c | 1 + drivers/acpi/pptt.c | 11 +- drivers/bluetooth/btnxpuart.c | 6 +- drivers/char/tpm/tpm2-sessions.c | 20 +- drivers/char/tpm/tpm_tis_core.h | 2 +- drivers/dma-buf/dma-resv.c | 5 +- drivers/dma/dmatest.c | 6 +- drivers/dma/idxd/init.c | 159 +++++--- drivers/dma/ti/k3-udma.c | 10 +- drivers/gpio/gpio-pca953x.c | 6 + drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 +- drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 18 - drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 47 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +- drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 12 + drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 8 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 16 +- .../drm/amd/display/dc/dpp/dcn401/dcn401_dpp_cm.c | 5 +- drivers/gpu/drm/drm_fbdev_dma.c | 60 +-- drivers/gpu/drm/tiny/Kconfig | 1 + drivers/gpu/drm/tiny/panel-mipi-dbi.c | 7 +- drivers/gpu/drm/xe/instructions/xe_mi_commands.h | 4 + drivers/gpu/drm/xe/xe_gsc.c | 22 ++ drivers/gpu/drm/xe/xe_gsc.h | 1 + drivers/gpu/drm/xe/xe_gsc_proxy.c | 11 + drivers/gpu/drm/xe/xe_gsc_proxy.h | 1 + drivers/gpu/drm/xe/xe_gt.c | 2 +- drivers/gpu/drm/xe/xe_lrc.c | 2 +- drivers/gpu/drm/xe/xe_ring_ops.c | 7 +- drivers/gpu/drm/xe/xe_uc.c | 8 +- drivers/gpu/drm/xe/xe_uc.h | 1 + drivers/hid/bpf/hid_bpf_dispatch.c | 9 + drivers/hid/hid-thrustmaster.c | 1 + drivers/hid/hid-uclogic-core.c | 7 +- drivers/hv/channel.c | 65 +--- drivers/hv/hyperv_vmbus.h | 6 + drivers/hv/vmbus_drv.c | 100 ++++- drivers/iio/adc/ad7266.c | 2 +- drivers/iio/adc/ad7768-1.c | 2 +- drivers/iio/chemical/pms7003.c | 5 +- drivers/iio/chemical/sps30.c | 2 +- drivers/iio/light/opt3001.c | 5 +- drivers/iio/pressure/mprls0025pa.h | 17 +- drivers/infiniband/core/device.c | 6 +- drivers/infiniband/sw/rxe/rxe_cq.c | 5 +- drivers/net/dsa/b53/b53_common.c | 33 ++ drivers/net/dsa/b53/b53_regs.h | 14 + drivers/net/dsa/sja1105/sja1105_main.c | 6 +- drivers/net/ethernet/cadence/macb_main.c | 19 +- drivers/net/ethernet/engleder/tsnep_main.c | 30 +- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 5 + .../ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 3 +- .../ethernet/marvell/octeontx2/nic/otx2_common.h | 1 + .../ethernet/marvell/octeontx2/nic/otx2_devlink.c | 1 + .../ethernet/marvell/octeontx2/nic/otx2_flows.c | 3 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 + .../net/ethernet/mellanox/mlxsw/spectrum_router.c | 3 + drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +- drivers/net/hyperv/hyperv_net.h | 13 +- drivers/net/hyperv/netvsc.c | 57 ++- drivers/net/hyperv/netvsc_drv.c | 62 +--- drivers/net/hyperv/rndis_filter.c | 24 +- drivers/net/virtio_net.c | 5 +- drivers/net/wireless/mediatek/mt76/dma.c | 1 + drivers/nvme/host/pci.c | 4 +- drivers/phy/renesas/phy-rcar-gen3-usb2.c | 38 +- drivers/phy/tegra/xusb-tegra186.c | 46 ++- drivers/phy/tegra/xusb.c | 8 +- drivers/platform/x86/amd/pmc/pmc-quirks.c | 7 + drivers/platform/x86/amd/pmf/tee-if.c | 23 +- drivers/platform/x86/asus-wmi.c | 3 +- drivers/regulator/max20086-regulator.c | 7 +- drivers/scsi/sd_zbc.c | 6 +- drivers/scsi/storvsc_drv.c | 1 + drivers/spi/spi-loopback-test.c | 2 +- drivers/spi/spi-tegra114.c | 6 +- drivers/uio/uio_hv_generic.c | 39 +- drivers/usb/gadget/function/f_midi2.c | 2 +- drivers/usb/host/xhci-dbgcap.c | 21 +- drivers/usb/host/xhci-dbgcap.h | 3 + drivers/usb/typec/ucsi/displayport.c | 19 +- drivers/usb/typec/ucsi/ucsi.c | 34 ++ drivers/usb/typec/ucsi/ucsi.h | 2 + drivers/virtio/virtio_ring.c | 6 +- fs/binfmt_elf.c | 71 ++-- fs/btrfs/discard.c | 17 +- fs/btrfs/fs.h | 1 + fs/btrfs/inode.c | 7 + fs/btrfs/super.c | 4 + fs/nfs/nfs4proc.c | 9 +- fs/nfs/pnfs.c | 9 + fs/smb/client/cifs_spnego.c | 16 + fs/smb/client/cifsfs.c | 25 ++ fs/smb/client/cifsglob.h | 7 + fs/smb/client/connect.c | 20 + fs/smb/client/fs_context.c | 39 ++ fs/smb/client/fs_context.h | 10 + fs/smb/client/smb2pdu.c | 2 +- fs/udf/truncate.c | 2 +- fs/xattr.c | 24 ++ include/drm/drm_fbdev_dma.h | 12 + include/linux/bio.h | 1 + include/linux/hyperv.h | 13 +- include/linux/kvm_host.h | 6 + include/linux/tpm.h | 21 +- include/linux/virtio.h | 3 +- include/net/sch_generic.h | 15 + include/sound/ump_msg.h | 4 +- kernel/cgroup/cpuset.c | 6 +- kernel/sched/ext.c | 6 + kernel/trace/ring_buffer.c | 8 +- kernel/trace/trace_dynevent.c | 16 +- kernel/trace/trace_dynevent.h | 1 + kernel/trace/trace_events_trigger.c | 2 +- kernel/trace/trace_functions.c | 6 +- kernel/trace/trace_kprobe.c | 2 +- kernel/trace/trace_probe.c | 9 + kernel/trace/trace_uprobe.c | 2 +- mm/page_alloc.c | 23 -- mm/userfaultfd.c | 12 +- net/bluetooth/mgmt.c | 9 +- net/mac80211/main.c | 6 +- net/mctp/device.c | 65 ++-- net/mctp/route.c | 4 +- net/sched/sch_codel.c | 2 +- net/sched/sch_fq.c | 2 +- net/sched/sch_fq_codel.c | 2 +- net/sched/sch_fq_pie.c | 2 +- net/sched/sch_hhf.c | 2 +- net/sched/sch_pie.c | 2 +- net/tls/tls_strp.c | 3 +- samples/ftrace/sample-trace-array.c | 2 +- scripts/Makefile.extrawarn | 12 + sound/core/seq/seq_clientmgr.c | 52 ++- sound/core/seq/seq_ump_convert.c | 18 + sound/core/seq/seq_ump_convert.h | 1 + sound/pci/es1968.c | 6 +- sound/sh/Kconfig | 2 +- sound/usb/quirks.c | 4 + tools/net/ynl/ethtool.py | 22 +- tools/testing/selftests/net/ncdevmem.c | 404 ++++++++++++--------- tools/testing/vsock/vsock_test.c | 28 +- virt/kvm/guest_memfd.c | 2 + virt/kvm/kvm_main.c | 14 + 169 files changed, 1823 insertions(+), 918 deletions(-)

3 months, 3 weeks

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[PATCH 6.14 000/145] 6.14.8-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.14.8 release. There are 145 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, 22 May 2025 12:57:37 +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-6.14.8-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.14.8-rc1 Dan Carpenter <dan.carpenter(a)linaro.org> phy: tegra: xusb: remove a stray unlock Tiezhu Yang <yangtiezhu(a)loongson.cn> perf tools: Fix build error for LoongArch Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> mm/page_alloc: fix race condition in unaccepted memory handling Daniele Ceraolo Spurio <daniele.ceraolospurio(a)intel.com> drm/xe/gsc: do not flush the GSC worker from the reset path Maciej Falkowski <maciej.falkowski(a)linux.intel.com> accel/ivpu: Flush pending jobs of device's workqueues Karol Wachowski <karol.wachowski(a)intel.com> accel/ivpu: Fix missing MMU events if file_priv is unbound Karol Wachowski <karol.wachowski(a)intel.com> accel/ivpu: Fix missing MMU events from reserved SSID Karol Wachowski <karol.wachowski(a)intel.com> accel/ivpu: Move parts of MMU event IRQ handling to thread handler Karol Wachowski <karol.wachowski(a)intel.com> accel/ivpu: Dump only first MMU fault from single context Maciej Falkowski <maciej.falkowski(a)linux.intel.com> accel/ivpu: Use workqueue for IRQ handling Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Refactor remove call with idxd_cleanup() helper Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_pci_probe Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanups in cleanup internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: Add missing cleanup for early error out in idxd_setup_internals Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_engines Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_wqs Yemike Abhilash Chandra <y-abhilashchandra(a)ti.com> dmaengine: ti: k3-udma: Use cap_mask directly from dma_device structure instead of a local copy Ronald Wahl <ronald.wahl(a)legrand.com> dmaengine: ti: k3-udma: Add missing locking Barry Song <baohua(a)kernel.org> mm: userfaultfd: correct dirty flags set for both present and swap pte Wupeng Ma <mawupeng1(a)huawei.com> mm: hugetlb: fix incorrect fallback for subpool hexue <xue01.he(a)samsung.com> io_uring/uring_cmd: fix hybrid polling initialization issue Jens Axboe <axboe(a)kernel.dk> io_uring/memmap: don't use page_address() on a highmem page Nathan Chancellor <nathan(a)kernel.org> net: qede: Initialize qede_ll_ops with designated initializer Steven Rostedt <rostedt(a)goodmis.org> ring-buffer: Fix persistent buffer when commit page is the reader page Ming Yen Hsieh <mingyen.hsieh(a)mediatek.com> wifi: mt76: mt7925: fix missing hdr_trans_tlv command for broadcast wtbl Fedor Pchelkin <pchelkin(a)ispras.ru> wifi: mt76: disable napi on driver removal Jarkko Sakkinen <jarkko(a)kernel.org> tpm: Mask TPM RC in tpm2_start_auth_session() Aaron Kling <webgeek1234(a)gmail.com> spi: tegra114: Use value to check for invalid delays Jethro Donaldson <devel(a)jro.nz> smb: client: fix memory leak during error handling for POSIX mkdir Steve Siwinski <ssiwinski(a)atto.com> scsi: sd_zbc: block: Respect bio vector limits for REPORT ZONES buffer Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Set timing registers only once Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Fix role detection on unbind/bind Oleksij Rempel <o.rempel(a)pengutronix.de> net: phy: micrel: remove KSZ9477 EEE quirks now handled by phylink Oleksij Rempel <o.rempel(a)pengutronix.de> net: dsa: microchip: let phylink manage PHY EEE configuration on KSZ switches Ma Ke <make24(a)iscas.ac.cn> phy: Fix error handling in tegra_xusb_port_init Wayne Chang <waynec(a)nvidia.com> phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking Steven Rostedt <rostedt(a)goodmis.org> tracing: samples: Initialize trace_array_printk() with the correct function Ashish Kalra <ashish.kalra(a)amd.com> x86/sev: Make sure pages are not skipped during kdump Ashish Kalra <ashish.kalra(a)amd.com> x86/sev: Do not touch VMSA pages during SNP guest memory kdump pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace filter command pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace trigger command Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> i2c: designware: Fix an error handling path in i2c_dw_pci_probe() Nathan Chancellor <nathan(a)kernel.org> kbuild: Disable -Wdefault-const-init-unsafe Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: vmbus: Remove vmbus_sendpacket_pagebuffer() Michael Kelley <mhklinux(a)outlook.com> Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Remove rmsg_pgcnt Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Preserve contiguous PFN grouping in the page buffer array Michael Kelley <mhklinux(a)outlook.com> hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages Dragan Simic <dsimic(a)manjaro.org> arm64: dts: rockchip: Remove overdrive-mode OPPs from RK3588J SoC dtsi Sam Edwards <cfsworks(a)gmail.com> arm64: dts: rockchip: Allow Turing RK1 cooling fan to spin down Christian Hewitt <christianshewitt(a)gmail.com> arm64: dts: amlogic: dreambox: fix missing clkc_audio node Hyejeong Choi <hjeong.choi(a)samsung.com> dma-buf: insert memory barrier before updating num_fences Nicolas Chauvet <kwizart(a)gmail.com> ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera Christian Heusel <christian(a)heusel.eu> ALSA: usb-audio: Add sample rate quirk for Audioengine D1 Wentao Liang <vulab(a)iscas.ac.cn> ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() Jeremy Linton <jeremy.linton(a)arm.com> ACPI: PPTT: Fix processor subtable walk Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> gpio: pca953x: fix IRQ storm on system wake up Alexey Makhalov <alexey.makhalov(a)broadcom.com> MAINTAINERS: Update Alexey Makhalov's email address Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Avoid flooding unnecessary info messages Wayne Lin <Wayne.Lin(a)amd.com> drm/amd/display: Correct the reply value when AUX write incomplete Philip Yang <Philip.Yang(a)amd.com> drm/amdgpu: csa unmap use uninterruptible lock Tim Huang <tim.huang(a)amd.com> drm/amdgpu: fix incorrect MALL size for GFX1151 David (Ming Qiang) Wu <David.Wu3(a)amd.com> drm/amdgpu: read back register after written for VCN v4.0.5 Fabio Estevam <festevam(a)denx.de> drm/tiny: panel-mipi-dbi: Use drm_client_setup_with_fourcc() Melissa Wen <mwen(a)igalia.com> Revert "drm/amd/display: Hardware cursor changes color when switched to software cursor" Kyoji Ogasawara <sawara04.o(a)gmail.com> btrfs: add back warning for mount option commit values exceeding 300 Boris Burkov <boris(a)bur.io> btrfs: fix folio leak in submit_one_async_extent() Filipe Manana <fdmanana(a)suse.com> btrfs: fix discard worker infinite loop after disabling discard Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove redundant code about resume_era Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: uprobes: Remove user_{en,dis}able_single_step() Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Fix MAX_REG_OFFSET calculation Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Save and restore CSR.CNTC for hibernation Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Move __arch_cpu_idle() to .cpuidle.text section Tianyang Zhang <zhangtianyang(a)loongson.cn> LoongArch: Prevent cond_resched() occurring within kernel-fpu Mario Limonciello <mario.limonciello(a)amd.com> HID: amd_sfh: Fix SRA sensor when it's the only sensor Rong Zhang <i(a)rong.moe> HID: bpf: abort dispatch if device destroyed Max Kellermann <max.kellermann(a)ionos.com> fs/eventpoll: fix endless busy loop after timeout has expired Jan Kara <jack(a)suse.cz> udf: Make sure i_lenExtents is uptodate on inode eviction Tejun Heo <tj(a)kernel.org> sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator Thomas Weißschuh <linux(a)weissschuh.net> Revert "kbuild, rust: use -fremap-path-prefix to make paths relative" Nathan Lynch <nathan.lynch(a)amd.com> dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pnfs: Reset the layout state after a layoutreturn Ming Lei <ming.lei(a)redhat.com> ublk: fix dead loop when canceling io command Gerhard Engleder <gerhard(a)engleder-embedded.com> tsnep: fix timestamping with a stacked DSA driver Pengtao He <hept.hept.hept(a)gmail.com> net/tls: fix kernel panic when alloc_page failed Ido Schimmel <idosch(a)nvidia.com> mlxsw: spectrum_router: Fix use-after-free when deleting GRE net devices Kees Cook <kees(a)kernel.org> wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: Do not reallocate all ntuple filters Hariprasad Kelam <hkelam(a)marvell.com> octeontx2-af: Fix CGX Receive counters Bo-Cun Chen <bc-bocun.chen(a)mediatek.com> net: ethernet: mtk_eth_soc: fix typo for declaration MT7988 ESW capability Subbaraya Sundeep <sbhatta(a)marvell.com> octeontx2-pf: macsec: Fix incorrect max transmit size in TX secy Jakub Kicinski <kuba(a)kernel.org> netlink: specs: tc: all actions are indexed arrays Jakub Kicinski <kuba(a)kernel.org> netlink: specs: tc: fix a couple of attribute names Umesh Nerlige Ramappa <umesh.nerlige.ramappa(a)intel.com> drm/xe: Save CTX_TIMESTAMP mmio value instead of LRC value Jens Axboe <axboe(a)kernel.dk> io_uring/fdinfo: grab ctx->uring_lock around io_uring_show_fdinfo() Hariprasad Kelam <hkelam(a)marvell.com> octeontx2-pf: Fix ethtool support for SDP representors Cosmin Tanislav <demonsingur(a)gmail.com> regulator: max20086: fix invalid memory access Abdun Nihaal <abdun.nihaal(a)gmail.com> qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() Carolina Jubran <cjubran(a)nvidia.com> net/mlx5e: Disable MACsec offload for uplink representor profile Konstantin Shkolnyy <kshk(a)linux.ibm.com> vsock/test: Fix occasional failure in SIOCOUTQ tests Melissa Wen <mwen(a)igalia.com> drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp Jonas Gorski <jonas.gorski(a)gmail.com> net: dsa: b53: prevent standalone from trying to forward to other ports Geert Uytterhoeven <geert+renesas(a)glider.be> ALSA: sh: SND_AICA should depend on SH_DMA_API Keith Busch <kbusch(a)kernel.org> nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable Kees Cook <kees(a)kernel.org> nvme-pci: make nvme_pci_npages_prp() __always_inline Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING Mathieu Othacehe <othacehe(a)gnu.org> net: cadence: macb: Fix a possible deadlock in macb_halt_tx. Takashi Iwai <tiwai(a)suse.de> ALSA: ump: Fix a typo of snd_ump_stream_msg_device_info Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix delivery of UMP events to group ports Andrew Jeffery <andrew(a)codeconstruct.com.au> net: mctp: Ensure keys maintain only one ref to corresponding dev Cosmin Ratiu <cratiu(a)nvidia.com> tests/ncdevmem: Fix double-free of queue array Matt Johnston <matt(a)codeconstruct.com.au> net: mctp: Don't access ifa_index when missing Hangbin Liu <liuhangbin(a)gmail.com> tools/net/ynl: ethtool: fix crash when Hardware Clock info is missing I Hsin Cheng <richard120310(a)gmail.com> drm/meson: Use 1000ULL when operating with mode->clock Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: Flush gso_skb list too during ->change() Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: MGMT: Fix MGMT_OP_ADD_DEVICE invalid device flags Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem Geert Uytterhoeven <geert+renesas(a)glider.be> spi: loopback-test: Do not split 1024-byte hexdumps Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS/localio: Fix a race in nfs_local_open_fh() Li Lingfeng <lilingfeng3(a)huawei.com> nfs: handle failure of nfs_get_lock_context in unlock path Henry Martin <bsdhenrymartin(a)gmail.com> HID: uclogic: Add NULL check in uclogic_input_configured() Qasim Ijaz <qasdev00(a)gmail.com> HID: thrustmaster: fix memory leak in thrustmaster_interrupts() Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug David Lechner <dlechner(a)baylibre.com> iio: adc: ad7606: check for NULL before calling sw_mode_config() Guillaume Stols <gstols(a)baylibre.com> iio: adc: ad7606: move software functions into common file Guillaume Stols <gstols(a)baylibre.com> iio: adc: ad7606: move the software mode configuration Michal Suchanek <msuchanek(a)suse.de> tpm: tis: Double the timeout B to 4s Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: probes: Fix a possible race in trace_probe_log APIs Breno Leitao <leitao(a)debian.org> tracing: fprobe: Fix RCU warning message in list traversal Waiman Long <longman(a)redhat.com> cgroup/cpuset: Extend kthread_is_per_cpu() check to all PF_NO_SETAFFINITY tasks Himanshu Bhavani <himanshu.bhavani(a)siliconsignals.io> arm64: dts: imx8mp-var-som: Fix LDO5 shutdown causing SD card timeout Hans de Goede <hdegoede(a)redhat.com> platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection Runhua He <hua(a)aosc.io> platform/x86/amd/pmc: Declare quirk_spurious_8042 for MECHREVO Wujie 14XA (GX4HRXL) Kees Cook <kees(a)kernel.org> binfmt_elf: Move brk for static PIE even if ASLR disabled Ze Huang <huangze(a)whut.edu.cn> riscv: dts: sophgo: fix DMA data-width configuration for CV18xx Nicolas Frattaroli <nicolas.frattaroli(a)collabora.com> arm64: dts: rockchip: fix Sige5 RTC interrupt pin Suma Hegde <suma.hegde(a)amd.com> platform/x86/amd/hsmp: Make amd_hsmp and hsmp_acpi as mutually exclusive drivers Yazen Ghannam <yazen.ghannam(a)amd.com> x86/amd_node, platform/x86/amd/hsmp: Have HSMP use SMN through AMD_NODE Mario Limonciello <mario.limonciello(a)amd.com> drivers/platform/x86/amd: pmf: Check for invalid Smart PC Policies Mario Limonciello <mario.limonciello(a)amd.com> drivers/platform/x86/amd: pmf: Check for invalid sideloaded Smart PC Policies Stephen Smalley <stephen.smalley.work(a)gmail.com> fs/xattr.c: fix simple_xattr_list to always include security.* xattrs Tom Vincent <linux(a)tlvince.com> arm64: dts: rockchip: Assign RT5616 MCLK rate on rk3588-friendlyelec-cm3588 ------------- Diffstat: Documentation/netlink/specs/tc.yaml | 10 +- MAINTAINERS | 6 +- Makefile | 5 +- .../boot/dts/amlogic/meson-g12b-dreambox.dtsi | 4 + arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi | 12 +- .../boot/dts/rockchip/rk3576-armsom-sige5.dts | 2 +- .../dts/rockchip/rk3588-friendlyelec-cm3588.dtsi | 4 + .../arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi | 2 + arch/arm64/boot/dts/rockchip/rk3588j.dtsi | 53 ++--- arch/loongarch/include/asm/ptrace.h | 2 +- arch/loongarch/include/asm/uprobes.h | 1 - arch/loongarch/kernel/genex.S | 7 +- arch/loongarch/kernel/kfpu.c | 22 +- arch/loongarch/kernel/time.c | 2 +- arch/loongarch/kernel/uprobes.c | 11 +- arch/loongarch/power/hibernate.c | 3 + arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 2 +- arch/x86/coco/sev/core.c | 255 +++++++++++++-------- arch/x86/include/asm/amd_nb.h | 1 - arch/x86/include/asm/amd_node.h | 13 ++ arch/x86/kernel/amd_nb.c | 1 - arch/x86/kernel/amd_node.c | 9 + block/bio.c | 2 +- drivers/accel/ivpu/ivpu_drv.c | 39 +--- drivers/accel/ivpu/ivpu_drv.h | 5 +- drivers/accel/ivpu/ivpu_hw.c | 5 - drivers/accel/ivpu/ivpu_hw.h | 9 - drivers/accel/ivpu/ivpu_hw_btrs.c | 3 +- drivers/accel/ivpu/ivpu_ipc.c | 7 +- drivers/accel/ivpu/ivpu_ipc.h | 2 +- drivers/accel/ivpu/ivpu_job.c | 15 +- drivers/accel/ivpu/ivpu_job.h | 2 +- drivers/accel/ivpu/ivpu_mmu.c | 109 +++++++-- drivers/accel/ivpu/ivpu_mmu.h | 2 + drivers/accel/ivpu/ivpu_mmu_context.c | 13 -- drivers/accel/ivpu/ivpu_mmu_context.h | 2 - drivers/accel/ivpu/ivpu_pm.c | 3 +- drivers/accel/ivpu/ivpu_pm.h | 2 +- drivers/acpi/pptt.c | 11 +- drivers/block/ublk_drv.c | 2 +- drivers/char/tpm/tpm2-sessions.c | 20 +- drivers/char/tpm/tpm_tis_core.h | 2 +- drivers/dma-buf/dma-resv.c | 5 +- drivers/dma/dmatest.c | 6 +- drivers/dma/idxd/init.c | 159 +++++++++---- drivers/dma/ti/k3-udma.c | 10 +- drivers/gpio/gpio-pca953x.c | 6 + drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 2 +- drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 12 + drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 8 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 16 +- .../drm/amd/display/dc/dpp/dcn401/dcn401_dpp_cm.c | 5 +- .../drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 6 +- drivers/gpu/drm/meson/meson_encoder_hdmi.c | 4 +- drivers/gpu/drm/tiny/panel-mipi-dbi.c | 5 +- drivers/gpu/drm/xe/instructions/xe_mi_commands.h | 4 + drivers/gpu/drm/xe/xe_gsc.c | 22 ++ drivers/gpu/drm/xe/xe_gsc.h | 1 + drivers/gpu/drm/xe/xe_gsc_proxy.c | 11 + drivers/gpu/drm/xe/xe_gsc_proxy.h | 1 + drivers/gpu/drm/xe/xe_gt.c | 2 +- drivers/gpu/drm/xe/xe_lrc.c | 2 +- drivers/gpu/drm/xe/xe_ring_ops.c | 7 +- drivers/gpu/drm/xe/xe_uc.c | 8 +- drivers/gpu/drm/xe/xe_uc.h | 1 + drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c | 7 +- drivers/hid/bpf/hid_bpf_dispatch.c | 9 + drivers/hid/hid-thrustmaster.c | 1 + drivers/hid/hid-uclogic-core.c | 7 +- drivers/hv/channel.c | 65 +----- drivers/i2c/busses/i2c-designware-pcidrv.c | 4 +- drivers/iio/adc/ad7606.c | 154 +++++++++++-- drivers/iio/adc/ad7606.h | 37 ++- drivers/iio/adc/ad7606_spi.c | 137 +---------- drivers/infiniband/core/device.c | 6 +- drivers/infiniband/sw/rxe/rxe_cq.c | 5 +- drivers/net/dsa/b53/b53_common.c | 33 +++ drivers/net/dsa/b53/b53_regs.h | 14 ++ drivers/net/dsa/microchip/ksz_common.c | 137 ++++++++--- drivers/net/dsa/sja1105/sja1105_main.c | 6 +- drivers/net/ethernet/cadence/macb_main.c | 19 +- drivers/net/ethernet/engleder/tsnep_main.c | 30 ++- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 5 + .../ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 3 +- .../ethernet/marvell/octeontx2/nic/otx2_common.h | 1 + .../ethernet/marvell/octeontx2/nic/otx2_devlink.c | 1 + .../ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 10 +- .../ethernet/marvell/octeontx2/nic/otx2_flows.c | 3 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 + .../net/ethernet/mellanox/mlxsw/spectrum_router.c | 3 + drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +- drivers/net/hyperv/hyperv_net.h | 13 +- drivers/net/hyperv/netvsc.c | 57 ++++- drivers/net/hyperv/netvsc_drv.c | 62 ++--- drivers/net/hyperv/rndis_filter.c | 24 +- drivers/net/phy/micrel.c | 7 - drivers/net/wireless/mediatek/mt76/dma.c | 1 + drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 4 +- drivers/nvme/host/pci.c | 4 +- drivers/phy/renesas/phy-rcar-gen3-usb2.c | 38 ++- drivers/phy/tegra/xusb-tegra186.c | 46 ++-- drivers/phy/tegra/xusb.c | 8 +- drivers/platform/x86/amd/hsmp/Kconfig | 2 +- drivers/platform/x86/amd/hsmp/acpi.c | 10 +- drivers/platform/x86/amd/hsmp/hsmp.c | 1 - drivers/platform/x86/amd/hsmp/hsmp.h | 4 +- drivers/platform/x86/amd/hsmp/plat.c | 42 ++-- drivers/platform/x86/amd/pmc/pmc-quirks.c | 7 + drivers/platform/x86/amd/pmf/tee-if.c | 23 +- drivers/platform/x86/asus-wmi.c | 3 +- drivers/regulator/max20086-regulator.c | 7 +- drivers/scsi/sd_zbc.c | 6 +- drivers/scsi/storvsc_drv.c | 1 + drivers/spi/spi-loopback-test.c | 2 +- drivers/spi/spi-tegra114.c | 6 +- drivers/usb/gadget/function/f_midi2.c | 2 +- fs/binfmt_elf.c | 71 ++++-- fs/btrfs/discard.c | 17 +- fs/btrfs/fs.h | 1 + fs/btrfs/inode.c | 7 + fs/btrfs/super.c | 4 + fs/eventpoll.c | 7 +- fs/nfs/localio.c | 2 +- fs/nfs/nfs4proc.c | 9 +- fs/nfs/pnfs.c | 9 + fs/smb/client/smb2pdu.c | 2 +- fs/udf/truncate.c | 2 +- fs/xattr.c | 24 ++ include/linux/bio.h | 1 + include/linux/hyperv.h | 7 - include/linux/micrel_phy.h | 1 - include/linux/tpm.h | 21 +- include/net/sch_generic.h | 15 ++ include/sound/ump_msg.h | 4 +- io_uring/fdinfo.c | 48 ++-- io_uring/memmap.c | 2 +- io_uring/uring_cmd.c | 5 + kernel/cgroup/cpuset.c | 6 +- kernel/sched/ext.c | 6 + kernel/trace/fprobe.c | 3 +- kernel/trace/ring_buffer.c | 8 +- kernel/trace/trace_dynevent.c | 16 +- kernel/trace/trace_dynevent.h | 1 + kernel/trace/trace_events_trigger.c | 2 +- kernel/trace/trace_functions.c | 6 +- kernel/trace/trace_kprobe.c | 2 +- kernel/trace/trace_probe.c | 9 + kernel/trace/trace_uprobe.c | 2 +- mm/hugetlb.c | 28 ++- mm/page_alloc.c | 23 -- mm/userfaultfd.c | 12 +- net/bluetooth/mgmt.c | 9 +- net/mac80211/main.c | 6 +- net/mctp/device.c | 15 +- net/mctp/route.c | 4 +- net/sched/sch_codel.c | 2 +- net/sched/sch_fq.c | 2 +- net/sched/sch_fq_codel.c | 2 +- net/sched/sch_fq_pie.c | 2 +- net/sched/sch_hhf.c | 2 +- net/sched/sch_pie.c | 2 +- net/tls/tls_strp.c | 3 +- samples/ftrace/sample-trace-array.c | 2 +- scripts/Makefile.extrawarn | 12 + sound/core/seq/seq_clientmgr.c | 52 +++-- sound/core/seq/seq_ump_convert.c | 18 ++ sound/core/seq/seq_ump_convert.h | 1 + sound/pci/es1968.c | 6 +- sound/sh/Kconfig | 2 +- sound/usb/quirks.c | 4 + tools/net/ynl/pyynl/ethtool.py | 22 +- tools/perf/arch/loongarch/include/syscall_table.h | 2 +- tools/testing/selftests/drivers/net/hw/ncdevmem.c | 55 ++--- tools/testing/vsock/vsock_test.c | 28 ++- 177 files changed, 1689 insertions(+), 1027 deletions(-)

3 months, 3 weeks

16
165
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[PATCH 5.10 0/5] kernfs: backport locking and concurrency improvement

by Qingfang Deng

KCSAN reports concurrent accesses to inode->i_mode: ================================================================== BUG: KCSAN: data-race in generic_permission / kernfs_iop_permission write to 0xffffffe001129590 of 2 bytes by task 2477 on cpu 1: kernfs_iop_permission+0x72/0x1a0 link_path_walk.part.0.constprop.0+0x348/0x420 path_openat+0xee/0x10f0 do_filp_open+0xaa/0x160 do_sys_openat2+0x252/0x380 sys_openat+0x4c/0xa0 ret_from_syscall+0x0/0x2 read to 0xffffffe001129590 of 2 bytes by task 3902 on cpu 3: generic_permission+0x26/0x120 kernfs_iop_permission+0x150/0x1a0 link_path_walk.part.0.constprop.0+0x348/0x420 path_lookupat+0x58/0x280 filename_lookup+0xae/0x1f0 user_path_at_empty+0x3a/0x70 vfs_statx+0x82/0x170 __do_sys_newfstatat+0x36/0x70 sys_newfstatat+0x2e/0x50 ret_from_syscall+0x0/0x2 Reported by Kernel Concurrency Sanitizer on: CPU: 3 PID: 3902 Comm: ls Not tainted 5.10.104+ #0 ================================================================== kernfs_iop_permission+0x72/0x1a0: kernfs_refresh_inode at fs/kernfs/inode.c:174 169 170 static void kernfs_refresh_inode(struct kernfs_node *kn, struct inode *inode) 171 { 172 struct kernfs_iattrs *attrs = kn->iattr; 173 >174< inode->i_mode = kn->mode; 175 if (attrs) 176 /* 177 * kernfs_node has non-default attributes get them from 178 * persistent copy in kernfs_node. 179 */ (inlined by) kernfs_iop_permission at fs/kernfs/inode.c:285 280 return -ECHILD; 281 282 kn = inode->i_private; 283 284 mutex_lock(&kernfs_mutex); >285< kernfs_refresh_inode(kn, inode); 286 mutex_unlock(&kernfs_mutex); 287 288 return generic_permission(inode, mask); 289 } 290 generic_permission+0x26/0x120: acl_permission_check at fs/namei.c:298 293 * Note that the POSIX ACL check cares about the MAY_NOT_BLOCK bit, 294 * for RCU walking. 295 */ 296 static int acl_permission_check(struct inode *inode, int mask) 297 { >298< unsigned int mode = inode->i_mode; 299 300 /* Are we the owner? If so, ACL's don't matter */ 301 if (likely(uid_eq(current_fsuid(), inode->i_uid))) { 302 mask &= 7; 303 mode >>= 6; (inlined by) generic_permission at fs/namei.c:353 348 int ret; 349 350 /* 351 * Do the basic permission checks. 352 */ >353< ret = acl_permission_check(inode, mask); 354 if (ret != -EACCES) 355 return ret; 356 357 if (S_ISDIR(inode->i_mode)) { 358 /* DACs are overridable for directories */ Backport the series from 5.15 to fix the concurrency bug. https://lore.kernel.org/all/162642752894.63632.5596341704463755308.stgit@we… Ian Kent (5): kernfs: add a revision to identify directory node changes kernfs: use VFS negative dentry caching kernfs: switch kernfs to use an rwsem kernfs: use i_lock to protect concurrent inode updates kernfs: dont call d_splice_alias() under kernfs node lock fs/kernfs/dir.c | 153 ++++++++++++++++++++---------------- fs/kernfs/file.c | 4 +- fs/kernfs/inode.c | 26 +++--- fs/kernfs/kernfs-internal.h | 24 +++++- fs/kernfs/mount.c | 12 +-- fs/kernfs/symlink.c | 4 +- include/linux/kernfs.h | 7 +- 7 files changed, 138 insertions(+), 92 deletions(-) -- 2.43.0

3 months, 4 weeks

4
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[PATCH 5.10.y] sched/deadline: Fix warning in migrate_enable for boosted tasks

by bin.lan.cn＠windriver.com

From: Wander Lairson Costa <wander(a)redhat.com> [ Upstream commit 0664e2c311b9fa43b33e3e81429cd0c2d7f9c638 ] When running the following command: while true; do stress-ng --cyclic 30 --timeout 30s --minimize --quiet done a warning is eventually triggered: WARNING: CPU: 43 PID: 2848 at kernel/sched/deadline.c:794 setup_new_dl_entity+0x13e/0x180 ... Call Trace: <TASK> ? show_trace_log_lvl+0x1c4/0x2df ? enqueue_dl_entity+0x631/0x6e0 ? setup_new_dl_entity+0x13e/0x180 ? __warn+0x7e/0xd0 ? report_bug+0x11a/0x1a0 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 enqueue_dl_entity+0x631/0x6e0 enqueue_task_dl+0x7d/0x120 __do_set_cpus_allowed+0xe3/0x280 __set_cpus_allowed_ptr_locked+0x140/0x1d0 __set_cpus_allowed_ptr+0x54/0xa0 migrate_enable+0x7e/0x150 rt_spin_unlock+0x1c/0x90 group_send_sig_info+0xf7/0x1a0 ? kill_pid_info+0x1f/0x1d0 kill_pid_info+0x78/0x1d0 kill_proc_info+0x5b/0x110 __x64_sys_kill+0x93/0xc0 do_syscall_64+0x5c/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f0dab31f92b This warning occurs because set_cpus_allowed dequeues and enqueues tasks with the ENQUEUE_RESTORE flag set. If the task is boosted, the warning is triggered. A boosted task already had its parameters set by rt_mutex_setprio, and a new call to setup_new_dl_entity is unnecessary, hence the WARN_ON call. Check if we are requeueing a boosted task and avoid calling setup_new_dl_entity if that's the case. Fixes: 295d6d5e3736 ("sched/deadline: Fix switching to -deadline") Signed-off-by: Wander Lairson Costa <wander(a)redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Acked-by: Juri Lelli <juri.lelli(a)redhat.com> Link: https://lore.kernel.org/r/20240724142253.27145-2-wander@redhat.com [Minor context change fixed.] Signed-off-by: Bin Lan <bin.lan.cn(a)windriver.com> Signed-off-by: He Zhe <zhe.he(a)windriver.com> --- Build test passed. --- kernel/sched/deadline.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 6548bd90c5c3..e2ff343d1c42 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1516,6 +1516,7 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se, int flags) } else if (flags & ENQUEUE_REPLENISH) { replenish_dl_entity(dl_se); } else if ((flags & ENQUEUE_RESTORE) && + !is_dl_boosted(dl_se) && dl_time_before(dl_se->deadline, rq_clock(rq_of_dl_rq(dl_rq_of_se(dl_se))))) { setup_new_dl_entity(dl_se); -- 2.34.1

3 months, 4 weeks

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[PATCH 5.15.y v3 0/1] Manual Backport of 099606a7b2d5 to 5.15

by Harshvardhan Jha

The patch 099606a7b2d5 didn't cleanly apply to 5.15 due to the significant difference in codebases. I've tried to manually bring it back to 5.15 via some minor conflict resolution but also invoking the newly introduced API using inverted logic as the conditional statements present in 5.15 are the opposite of those in 6.1 xen/swiotlib. v2 of this patch was added and dropped due to some issues in testing. However, after further verification this version seems to be right as is. I kindly request Juergen's ack specifically before this is added to stable queue as this patch differs quite significantly compared to the original. Changes in v2: Include correct upstream SHA in the commit message Changes in v3: Patch remains the same, however further verification and testing was done. Harshvardhan Jha (1): xen/swiotlb: relax alignment requirements drivers/xen/swiotlb-xen.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) -- 2.47.1

3 months, 4 weeks

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[PATCH 6.1.y] sched/deadline: Fix warning in migrate_enable for boosted tasks

by bin.lan.cn＠windriver.com

From: Wander Lairson Costa <wander(a)redhat.com> [ Upstream commit 0664e2c311b9fa43b33e3e81429cd0c2d7f9c638 ] When running the following command: while true; do stress-ng --cyclic 30 --timeout 30s --minimize --quiet done a warning is eventually triggered: WARNING: CPU: 43 PID: 2848 at kernel/sched/deadline.c:794 setup_new_dl_entity+0x13e/0x180 ... Call Trace: <TASK> ? show_trace_log_lvl+0x1c4/0x2df ? enqueue_dl_entity+0x631/0x6e0 ? setup_new_dl_entity+0x13e/0x180 ? __warn+0x7e/0xd0 ? report_bug+0x11a/0x1a0 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 enqueue_dl_entity+0x631/0x6e0 enqueue_task_dl+0x7d/0x120 __do_set_cpus_allowed+0xe3/0x280 __set_cpus_allowed_ptr_locked+0x140/0x1d0 __set_cpus_allowed_ptr+0x54/0xa0 migrate_enable+0x7e/0x150 rt_spin_unlock+0x1c/0x90 group_send_sig_info+0xf7/0x1a0 ? kill_pid_info+0x1f/0x1d0 kill_pid_info+0x78/0x1d0 kill_proc_info+0x5b/0x110 __x64_sys_kill+0x93/0xc0 do_syscall_64+0x5c/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f0dab31f92b This warning occurs because set_cpus_allowed dequeues and enqueues tasks with the ENQUEUE_RESTORE flag set. If the task is boosted, the warning is triggered. A boosted task already had its parameters set by rt_mutex_setprio, and a new call to setup_new_dl_entity is unnecessary, hence the WARN_ON call. Check if we are requeueing a boosted task and avoid calling setup_new_dl_entity if that's the case. Fixes: 295d6d5e3736 ("sched/deadline: Fix switching to -deadline") Signed-off-by: Wander Lairson Costa <wander(a)redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Acked-by: Juri Lelli <juri.lelli(a)redhat.com> Link: https://lore.kernel.org/r/20240724142253.27145-2-wander@redhat.com [Minor context change fixed.] Signed-off-by: Bin Lan <bin.lan.cn(a)windriver.com> Signed-off-by: He Zhe <zhe.he(a)windriver.com> --- Build test passed. --- kernel/sched/deadline.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 7f378fa0b6ed..e1371227a3bf 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1656,6 +1656,7 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se, int flags) } else if (flags & ENQUEUE_REPLENISH) { replenish_dl_entity(dl_se); } else if ((flags & ENQUEUE_RESTORE) && + !is_dl_boosted(dl_se) && dl_time_before(dl_se->deadline, rq_clock(rq_of_dl_rq(dl_rq_of_se(dl_se))))) { setup_new_dl_entity(dl_se); -- 2.34.1

3 months, 4 weeks

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[PATCH 5.15.y] sched/deadline: Fix warning in migrate_enable for boosted tasks

by bin.lan.cn＠windriver.com

From: Wander Lairson Costa <wander(a)redhat.com> [ Upstream commit 0664e2c311b9fa43b33e3e81429cd0c2d7f9c638 ] When running the following command: while true; do stress-ng --cyclic 30 --timeout 30s --minimize --quiet done a warning is eventually triggered: WARNING: CPU: 43 PID: 2848 at kernel/sched/deadline.c:794 setup_new_dl_entity+0x13e/0x180 ... Call Trace: <TASK> ? show_trace_log_lvl+0x1c4/0x2df ? enqueue_dl_entity+0x631/0x6e0 ? setup_new_dl_entity+0x13e/0x180 ? __warn+0x7e/0xd0 ? report_bug+0x11a/0x1a0 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 enqueue_dl_entity+0x631/0x6e0 enqueue_task_dl+0x7d/0x120 __do_set_cpus_allowed+0xe3/0x280 __set_cpus_allowed_ptr_locked+0x140/0x1d0 __set_cpus_allowed_ptr+0x54/0xa0 migrate_enable+0x7e/0x150 rt_spin_unlock+0x1c/0x90 group_send_sig_info+0xf7/0x1a0 ? kill_pid_info+0x1f/0x1d0 kill_pid_info+0x78/0x1d0 kill_proc_info+0x5b/0x110 __x64_sys_kill+0x93/0xc0 do_syscall_64+0x5c/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f0dab31f92b This warning occurs because set_cpus_allowed dequeues and enqueues tasks with the ENQUEUE_RESTORE flag set. If the task is boosted, the warning is triggered. A boosted task already had its parameters set by rt_mutex_setprio, and a new call to setup_new_dl_entity is unnecessary, hence the WARN_ON call. Check if we are requeueing a boosted task and avoid calling setup_new_dl_entity if that's the case. Fixes: 295d6d5e3736 ("sched/deadline: Fix switching to -deadline") Signed-off-by: Wander Lairson Costa <wander(a)redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Acked-by: Juri Lelli <juri.lelli(a)redhat.com> Link: https://lore.kernel.org/r/20240724142253.27145-2-wander@redhat.com [Minor context change fixed.] Signed-off-by: Bin Lan <bin.lan.cn(a)windriver.com> Signed-off-by: He Zhe <zhe.he(a)windriver.com> --- Build test passed. --- kernel/sched/deadline.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 66eb68c59f0b..5bb8915b1ca4 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1514,6 +1514,7 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se, int flags) } else if (flags & ENQUEUE_REPLENISH) { replenish_dl_entity(dl_se); } else if ((flags & ENQUEUE_RESTORE) && + !is_dl_boosted(dl_se) && dl_time_before(dl_se->deadline, rq_clock(rq_of_dl_rq(dl_rq_of_se(dl_se))))) { setup_new_dl_entity(dl_se); -- 2.34.1

3 months, 4 weeks

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FAILED: patch "[PATCH] gpio: pca953x: fix IRQ storm on system wake up" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 3e38f946062b4845961ab86b726651b4457b2af8 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025051941-gloomily-occupy-87f2@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3e38f946062b4845961ab86b726651b4457b2af8 Mon Sep 17 00:00:00 2001 From: Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> Date: Mon, 12 May 2025 11:54:41 +0200 Subject: [PATCH] gpio: pca953x: fix IRQ storm on system wake up If an input changes state during wake-up and is used as an interrupt source, the IRQ handler reads the volatile input register to clear the interrupt mask and deassert the IRQ line. However, the IRQ handler is triggered before access to the register is granted, causing the read operation to fail. As a result, the IRQ handler enters a loop, repeatedly printing the "failed reading register" message, until `pca953x_resume()` is eventually called, which restores the driver context and enables access to registers. Fix by disabling the IRQ line before entering suspend mode, and re-enabling it after the driver context is restored in `pca953x_resume()`. An IRQ can be disabled with disable_irq() and still wake the system as long as the IRQ has wake enabled, so the wake-up functionality is preserved. Fixes: b76574300504 ("gpio: pca953x: Restore registers after suspend/resume cycle") Cc: stable(a)vger.kernel.org Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini(a)toradex.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Tested-by: Geert Uytterhoeven <geert+renesas(a)glider.be> Link: https://lore.kernel.org/r/20250512095441.31645-1-francesco@dolcini.it Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 442435ded020..13cc120cf11f 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -1204,6 +1204,8 @@ static int pca953x_restore_context(struct pca953x_chip *chip) guard(mutex)(&chip->i2c_lock); + if (chip->client->irq > 0) + enable_irq(chip->client->irq); regcache_cache_only(chip->regmap, false); regcache_mark_dirty(chip->regmap); ret = pca953x_regcache_sync(chip); @@ -1216,6 +1218,10 @@ static int pca953x_restore_context(struct pca953x_chip *chip) static void pca953x_save_context(struct pca953x_chip *chip) { guard(mutex)(&chip->i2c_lock); + + /* Disable IRQ to prevent early triggering while regmap "cache only" is on */ + if (chip->client->irq > 0) + disable_irq(chip->client->irq); regcache_cache_only(chip->regmap, true); }

3 months, 4 weeks

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FAILED: patch "[PATCH] hrtimers: Force migrate away hrtimers queued after" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021052-avenging-aflutter-192c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker <frederic(a)kernel.org> Date: Sat, 18 Jan 2025 00:24:33 +0100 Subject: [PATCH] hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING hrtimers are migrated away from the dying CPU to any online target at the CPUHP_AP_HRTIMERS_DYING stage in order not to delay bandwidth timers handling tasks involved in the CPU hotplug forward progress. However wakeups can still be performed by the outgoing CPU after CPUHP_AP_HRTIMERS_DYING. Those can result again in bandwidth timers being armed. Depending on several considerations (crystal ball power management based election, earliest timer already enqueued, timer migration enabled or not), the target may eventually be the current CPU even if offline. If that happens, the timer is eventually ignored. The most notable example is RCU which had to deal with each and every of those wake-ups by deferring them to an online CPU, along with related workarounds: _ e787644caf76 (rcu: Defer RCU kthreads wakeup when CPU is dying) _ 9139f93209d1 (rcu/nocb: Fix RT throttling hrtimer armed from offline CPU) _ f7345ccc62a4 (rcu/nocb: Fix rcuog wake-up from offline softirq) The problem isn't confined to RCU though as the stop machine kthread (which runs CPUHP_AP_HRTIMERS_DYING) reports its completion at the end of its work through cpu_stop_signal_done() and performs a wake up that eventually arms the deadline server timer: WARNING: CPU: 94 PID: 588 at kernel/time/hrtimer.c:1086 hrtimer_start_range_ns+0x289/0x2d0 CPU: 94 UID: 0 PID: 588 Comm: migration/94 Not tainted Stopper: multi_cpu_stop+0x0/0x120 <- stop_machine_cpuslocked+0x66/0xc0 RIP: 0010:hrtimer_start_range_ns+0x289/0x2d0 Call Trace: <TASK> start_dl_timer enqueue_dl_entity dl_server_start enqueue_task_fair enqueue_task ttwu_do_activate try_to_wake_up complete cpu_stopper_thread Instead of providing yet another bandaid to work around the situation, fix it in the hrtimers infrastructure instead: always migrate away a timer to an online target whenever it is enqueued from an offline CPU. This will also allow to revert all the above RCU disgraceful hacks. Fixes: 5c0930ccaad5 ("hrtimers: Push pending hrtimers away from outgoing CPU earlier") Reported-by: Vlad Poenaru <vlad.wing(a)gmail.com> Reported-by: Usama Arif <usamaarif642(a)gmail.com> Signed-off-by: Frederic Weisbecker <frederic(a)kernel.org> Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: stable(a)vger.kernel.org Tested-by: Paul E. McKenney <paulmck(a)kernel.org> Link: https://lore.kernel.org/all/20250117232433.24027-1-frederic@kernel.org Closes: 20241213203739.1519801-1-usamaarif642(a)gmail.com diff --git a/include/linux/hrtimer_defs.h b/include/linux/hrtimer_defs.h index c3b4b7ed7c16..84a5045f80f3 100644 --- a/include/linux/hrtimer_defs.h +++ b/include/linux/hrtimer_defs.h @@ -125,6 +125,7 @@ struct hrtimer_cpu_base { ktime_t softirq_expires_next; struct hrtimer *softirq_next_timer; struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; + call_single_data_t csd; } ____cacheline_aligned; diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 4fb81f8c6f1c..deb1aa32814e 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -58,6 +58,8 @@ #define HRTIMER_ACTIVE_SOFT (HRTIMER_ACTIVE_HARD << MASK_SHIFT) #define HRTIMER_ACTIVE_ALL (HRTIMER_ACTIVE_SOFT | HRTIMER_ACTIVE_HARD) +static void retrigger_next_event(void *arg); + /* * The timer bases: * @@ -111,7 +113,8 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) = .clockid = CLOCK_TAI, .get_time = &ktime_get_clocktai, }, - } + }, + .csd = CSD_INIT(retrigger_next_event, NULL) }; static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { @@ -124,6 +127,14 @@ static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { [CLOCK_TAI] = HRTIMER_BASE_TAI, }; +static inline bool hrtimer_base_is_online(struct hrtimer_cpu_base *base) +{ + if (!IS_ENABLED(CONFIG_HOTPLUG_CPU)) + return true; + else + return likely(base->online); +} + /* * Functions and macros which are different for UP/SMP systems are kept in a * single place @@ -178,27 +189,54 @@ struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer, } /* - * We do not migrate the timer when it is expiring before the next - * event on the target cpu. When high resolution is enabled, we cannot - * reprogram the target cpu hardware and we would cause it to fire - * late. To keep it simple, we handle the high resolution enabled and - * disabled case similar. + * Check if the elected target is suitable considering its next + * event and the hotplug state of the current CPU. + * + * If the elected target is remote and its next event is after the timer + * to queue, then a remote reprogram is necessary. However there is no + * guarantee the IPI handling the operation would arrive in time to meet + * the high resolution deadline. In this case the local CPU becomes a + * preferred target, unless it is offline. + * + * High and low resolution modes are handled the same way for simplicity. * * Called with cpu_base->lock of target cpu held. */ -static int -hrtimer_check_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base) +static bool hrtimer_suitable_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base, + struct hrtimer_cpu_base *new_cpu_base, + struct hrtimer_cpu_base *this_cpu_base) { ktime_t expires; + /* + * The local CPU clockevent can be reprogrammed. Also get_target_base() + * guarantees it is online. + */ + if (new_cpu_base == this_cpu_base) + return true; + + /* + * The offline local CPU can't be the default target if the + * next remote target event is after this timer. Keep the + * elected new base. An IPI will we issued to reprogram + * it as a last resort. + */ + if (!hrtimer_base_is_online(this_cpu_base)) + return true; + expires = ktime_sub(hrtimer_get_expires(timer), new_base->offset); - return expires < new_base->cpu_base->expires_next; + + return expires >= new_base->cpu_base->expires_next; } -static inline -struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, - int pinned) +static inline struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, int pinned) { + if (!hrtimer_base_is_online(base)) { + int cpu = cpumask_any_and(cpu_online_mask, housekeeping_cpumask(HK_TYPE_TIMER)); + + return &per_cpu(hrtimer_bases, cpu); + } + #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) if (static_branch_likely(&timers_migration_enabled) && !pinned) return &per_cpu(hrtimer_bases, get_nohz_timer_target()); @@ -249,8 +287,8 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, raw_spin_unlock(&base->cpu_base->lock); raw_spin_lock(&new_base->cpu_base->lock); - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, + this_cpu_base)) { raw_spin_unlock(&new_base->cpu_base->lock); raw_spin_lock(&base->cpu_base->lock); new_cpu_base = this_cpu_base; @@ -259,8 +297,7 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, } WRITE_ONCE(timer->base, new_base); } else { - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, this_cpu_base)) { new_cpu_base = this_cpu_base; goto again; } @@ -706,8 +743,6 @@ static inline int hrtimer_is_hres_enabled(void) return hrtimer_hres_enabled; } -static void retrigger_next_event(void *arg); - /* * Switch to high resolution mode */ @@ -1195,6 +1230,7 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, u64 delta_ns, const enum hrtimer_mode mode, struct hrtimer_clock_base *base) { + struct hrtimer_cpu_base *this_cpu_base = this_cpu_ptr(&hrtimer_bases); struct hrtimer_clock_base *new_base; bool force_local, first; @@ -1206,9 +1242,15 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, * and enforce reprogramming after it is queued no matter whether * it is the new first expiring timer again or not. */ - force_local = base->cpu_base == this_cpu_ptr(&hrtimer_bases); + force_local = base->cpu_base == this_cpu_base; force_local &= base->cpu_base->next_timer == timer; + /* + * Don't force local queuing if this enqueue happens on a unplugged + * CPU after hrtimer_cpu_dying() has been invoked. + */ + force_local &= this_cpu_base->online; + /* * Remove an active timer from the queue. In case it is not queued * on the current CPU, make sure that remove_hrtimer() updates the @@ -1238,8 +1280,27 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, } first = enqueue_hrtimer(timer, new_base, mode); - if (!force_local) - return first; + if (!force_local) { + /* + * If the current CPU base is online, then the timer is + * never queued on a remote CPU if it would be the first + * expiring timer there. + */ + if (hrtimer_base_is_online(this_cpu_base)) + return first; + + /* + * Timer was enqueued remote because the current base is + * already offline. If the timer is the first to expire, + * kick the remote CPU to reprogram the clock event. + */ + if (first) { + struct hrtimer_cpu_base *new_cpu_base = new_base->cpu_base; + + smp_call_function_single_async(new_cpu_base->cpu, &new_cpu_base->csd); + } + return 0; + } /* * Timer was forced to stay on the current CPU to avoid

3 months, 4 weeks

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FAILED: patch "[PATCH] hrtimers: Force migrate away hrtimers queued after" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021053-unranked-silt-0282@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker <frederic(a)kernel.org> Date: Sat, 18 Jan 2025 00:24:33 +0100 Subject: [PATCH] hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING hrtimers are migrated away from the dying CPU to any online target at the CPUHP_AP_HRTIMERS_DYING stage in order not to delay bandwidth timers handling tasks involved in the CPU hotplug forward progress. However wakeups can still be performed by the outgoing CPU after CPUHP_AP_HRTIMERS_DYING. Those can result again in bandwidth timers being armed. Depending on several considerations (crystal ball power management based election, earliest timer already enqueued, timer migration enabled or not), the target may eventually be the current CPU even if offline. If that happens, the timer is eventually ignored. The most notable example is RCU which had to deal with each and every of those wake-ups by deferring them to an online CPU, along with related workarounds: _ e787644caf76 (rcu: Defer RCU kthreads wakeup when CPU is dying) _ 9139f93209d1 (rcu/nocb: Fix RT throttling hrtimer armed from offline CPU) _ f7345ccc62a4 (rcu/nocb: Fix rcuog wake-up from offline softirq) The problem isn't confined to RCU though as the stop machine kthread (which runs CPUHP_AP_HRTIMERS_DYING) reports its completion at the end of its work through cpu_stop_signal_done() and performs a wake up that eventually arms the deadline server timer: WARNING: CPU: 94 PID: 588 at kernel/time/hrtimer.c:1086 hrtimer_start_range_ns+0x289/0x2d0 CPU: 94 UID: 0 PID: 588 Comm: migration/94 Not tainted Stopper: multi_cpu_stop+0x0/0x120 <- stop_machine_cpuslocked+0x66/0xc0 RIP: 0010:hrtimer_start_range_ns+0x289/0x2d0 Call Trace: <TASK> start_dl_timer enqueue_dl_entity dl_server_start enqueue_task_fair enqueue_task ttwu_do_activate try_to_wake_up complete cpu_stopper_thread Instead of providing yet another bandaid to work around the situation, fix it in the hrtimers infrastructure instead: always migrate away a timer to an online target whenever it is enqueued from an offline CPU. This will also allow to revert all the above RCU disgraceful hacks. Fixes: 5c0930ccaad5 ("hrtimers: Push pending hrtimers away from outgoing CPU earlier") Reported-by: Vlad Poenaru <vlad.wing(a)gmail.com> Reported-by: Usama Arif <usamaarif642(a)gmail.com> Signed-off-by: Frederic Weisbecker <frederic(a)kernel.org> Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: stable(a)vger.kernel.org Tested-by: Paul E. McKenney <paulmck(a)kernel.org> Link: https://lore.kernel.org/all/20250117232433.24027-1-frederic@kernel.org Closes: 20241213203739.1519801-1-usamaarif642(a)gmail.com diff --git a/include/linux/hrtimer_defs.h b/include/linux/hrtimer_defs.h index c3b4b7ed7c16..84a5045f80f3 100644 --- a/include/linux/hrtimer_defs.h +++ b/include/linux/hrtimer_defs.h @@ -125,6 +125,7 @@ struct hrtimer_cpu_base { ktime_t softirq_expires_next; struct hrtimer *softirq_next_timer; struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; + call_single_data_t csd; } ____cacheline_aligned; diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 4fb81f8c6f1c..deb1aa32814e 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -58,6 +58,8 @@ #define HRTIMER_ACTIVE_SOFT (HRTIMER_ACTIVE_HARD << MASK_SHIFT) #define HRTIMER_ACTIVE_ALL (HRTIMER_ACTIVE_SOFT | HRTIMER_ACTIVE_HARD) +static void retrigger_next_event(void *arg); + /* * The timer bases: * @@ -111,7 +113,8 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) = .clockid = CLOCK_TAI, .get_time = &ktime_get_clocktai, }, - } + }, + .csd = CSD_INIT(retrigger_next_event, NULL) }; static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { @@ -124,6 +127,14 @@ static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { [CLOCK_TAI] = HRTIMER_BASE_TAI, }; +static inline bool hrtimer_base_is_online(struct hrtimer_cpu_base *base) +{ + if (!IS_ENABLED(CONFIG_HOTPLUG_CPU)) + return true; + else + return likely(base->online); +} + /* * Functions and macros which are different for UP/SMP systems are kept in a * single place @@ -178,27 +189,54 @@ struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer, } /* - * We do not migrate the timer when it is expiring before the next - * event on the target cpu. When high resolution is enabled, we cannot - * reprogram the target cpu hardware and we would cause it to fire - * late. To keep it simple, we handle the high resolution enabled and - * disabled case similar. + * Check if the elected target is suitable considering its next + * event and the hotplug state of the current CPU. + * + * If the elected target is remote and its next event is after the timer + * to queue, then a remote reprogram is necessary. However there is no + * guarantee the IPI handling the operation would arrive in time to meet + * the high resolution deadline. In this case the local CPU becomes a + * preferred target, unless it is offline. + * + * High and low resolution modes are handled the same way for simplicity. * * Called with cpu_base->lock of target cpu held. */ -static int -hrtimer_check_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base) +static bool hrtimer_suitable_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base, + struct hrtimer_cpu_base *new_cpu_base, + struct hrtimer_cpu_base *this_cpu_base) { ktime_t expires; + /* + * The local CPU clockevent can be reprogrammed. Also get_target_base() + * guarantees it is online. + */ + if (new_cpu_base == this_cpu_base) + return true; + + /* + * The offline local CPU can't be the default target if the + * next remote target event is after this timer. Keep the + * elected new base. An IPI will we issued to reprogram + * it as a last resort. + */ + if (!hrtimer_base_is_online(this_cpu_base)) + return true; + expires = ktime_sub(hrtimer_get_expires(timer), new_base->offset); - return expires < new_base->cpu_base->expires_next; + + return expires >= new_base->cpu_base->expires_next; } -static inline -struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, - int pinned) +static inline struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, int pinned) { + if (!hrtimer_base_is_online(base)) { + int cpu = cpumask_any_and(cpu_online_mask, housekeeping_cpumask(HK_TYPE_TIMER)); + + return &per_cpu(hrtimer_bases, cpu); + } + #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) if (static_branch_likely(&timers_migration_enabled) && !pinned) return &per_cpu(hrtimer_bases, get_nohz_timer_target()); @@ -249,8 +287,8 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, raw_spin_unlock(&base->cpu_base->lock); raw_spin_lock(&new_base->cpu_base->lock); - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, + this_cpu_base)) { raw_spin_unlock(&new_base->cpu_base->lock); raw_spin_lock(&base->cpu_base->lock); new_cpu_base = this_cpu_base; @@ -259,8 +297,7 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, } WRITE_ONCE(timer->base, new_base); } else { - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, this_cpu_base)) { new_cpu_base = this_cpu_base; goto again; } @@ -706,8 +743,6 @@ static inline int hrtimer_is_hres_enabled(void) return hrtimer_hres_enabled; } -static void retrigger_next_event(void *arg); - /* * Switch to high resolution mode */ @@ -1195,6 +1230,7 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, u64 delta_ns, const enum hrtimer_mode mode, struct hrtimer_clock_base *base) { + struct hrtimer_cpu_base *this_cpu_base = this_cpu_ptr(&hrtimer_bases); struct hrtimer_clock_base *new_base; bool force_local, first; @@ -1206,9 +1242,15 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, * and enforce reprogramming after it is queued no matter whether * it is the new first expiring timer again or not. */ - force_local = base->cpu_base == this_cpu_ptr(&hrtimer_bases); + force_local = base->cpu_base == this_cpu_base; force_local &= base->cpu_base->next_timer == timer; + /* + * Don't force local queuing if this enqueue happens on a unplugged + * CPU after hrtimer_cpu_dying() has been invoked. + */ + force_local &= this_cpu_base->online; + /* * Remove an active timer from the queue. In case it is not queued * on the current CPU, make sure that remove_hrtimer() updates the @@ -1238,8 +1280,27 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, } first = enqueue_hrtimer(timer, new_base, mode); - if (!force_local) - return first; + if (!force_local) { + /* + * If the current CPU base is online, then the timer is + * never queued on a remote CPU if it would be the first + * expiring timer there. + */ + if (hrtimer_base_is_online(this_cpu_base)) + return first; + + /* + * Timer was enqueued remote because the current base is + * already offline. If the timer is the first to expire, + * kick the remote CPU to reprogram the clock event. + */ + if (first) { + struct hrtimer_cpu_base *new_cpu_base = new_base->cpu_base; + + smp_call_function_single_async(new_cpu_base->cpu, &new_cpu_base->csd); + } + return 0; + } /* * Timer was forced to stay on the current CPU to avoid

3 months, 4 weeks

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FAILED: patch "[PATCH] btrfs: check folio mapping after unlock in" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 3e74859ee35edc33a022c3f3971df066ea0ca6b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024123045-parka-sublet-a95d@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3e74859ee35edc33a022c3f3971df066ea0ca6b9 Mon Sep 17 00:00:00 2001 From: Boris Burkov <boris(a)bur.io> Date: Fri, 13 Dec 2024 12:22:32 -0800 Subject: [PATCH] btrfs: check folio mapping after unlock in relocate_one_folio() When we call btrfs_read_folio() to bring a folio uptodate, we unlock the folio. The result of that is that a different thread can modify the mapping (like remove it with invalidate) before we call folio_lock(). This results in an invalid page and we need to try again. In particular, if we are relocating concurrently with aborting a transaction, this can result in a crash like the following: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 76 PID: 1411631 Comm: kworker/u322:5 Workqueue: events_unbound btrfs_reclaim_bgs_work RIP: 0010:set_page_extent_mapped+0x20/0xb0 RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246 RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880 RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0 R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000 R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die+0x78/0xc0 ? page_fault_oops+0x2a8/0x3a0 ? __switch_to+0x133/0x530 ? wq_worker_running+0xa/0x40 ? exc_page_fault+0x63/0x130 ? asm_exc_page_fault+0x22/0x30 ? set_page_extent_mapped+0x20/0xb0 relocate_file_extent_cluster+0x1a7/0x940 relocate_data_extent+0xaf/0x120 relocate_block_group+0x20f/0x480 btrfs_relocate_block_group+0x152/0x320 btrfs_relocate_chunk+0x3d/0x120 btrfs_reclaim_bgs_work+0x2ae/0x4e0 process_scheduled_works+0x184/0x370 worker_thread+0xc6/0x3e0 ? blk_add_timer+0xb0/0xb0 kthread+0xae/0xe0 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork+0x2f/0x40 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork_asm+0x11/0x20 </TASK> This occurs because cleanup_one_transaction() calls destroy_delalloc_inodes() which calls invalidate_inode_pages2() which takes the folio_lock before setting mapping to NULL. We fail to check this, and subsequently call set_extent_mapping(), which assumes that mapping != NULL (in fact it asserts that in debug mode) Note that the "fixes" patch here is not the one that introduced the race (the very first iteration of this code from 2009) but a more recent change that made this particular crash happen in practice. Fixes: e7f1326cc24e ("btrfs: set page extent mapped after read_folio in relocate_one_page") CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Qu Wenruo <wqu(a)suse.com> Signed-off-by: Boris Burkov <boris(a)bur.io> Signed-off-by: David Sterba <dsterba(a)suse.com> diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index bf267bdfa8f8..db8b42f674b7 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2902,6 +2902,7 @@ static int relocate_one_folio(struct reloc_control *rc, const bool use_rst = btrfs_need_stripe_tree_update(fs_info, rc->block_group->flags); ASSERT(index <= last_index); +again: folio = filemap_lock_folio(inode->i_mapping, index); if (IS_ERR(folio)) { @@ -2937,6 +2938,11 @@ static int relocate_one_folio(struct reloc_control *rc, ret = -EIO; goto release_folio; } + if (folio->mapping != inode->i_mapping) { + folio_unlock(folio); + folio_put(folio); + goto again; + } } /*

3 months, 4 weeks

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FAILED: patch "[PATCH] btrfs: check folio mapping after unlock in" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 3e74859ee35edc33a022c3f3971df066ea0ca6b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024123042-limelight-doily-8703@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3e74859ee35edc33a022c3f3971df066ea0ca6b9 Mon Sep 17 00:00:00 2001 From: Boris Burkov <boris(a)bur.io> Date: Fri, 13 Dec 2024 12:22:32 -0800 Subject: [PATCH] btrfs: check folio mapping after unlock in relocate_one_folio() When we call btrfs_read_folio() to bring a folio uptodate, we unlock the folio. The result of that is that a different thread can modify the mapping (like remove it with invalidate) before we call folio_lock(). This results in an invalid page and we need to try again. In particular, if we are relocating concurrently with aborting a transaction, this can result in a crash like the following: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 76 PID: 1411631 Comm: kworker/u322:5 Workqueue: events_unbound btrfs_reclaim_bgs_work RIP: 0010:set_page_extent_mapped+0x20/0xb0 RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246 RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880 RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0 R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000 R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die+0x78/0xc0 ? page_fault_oops+0x2a8/0x3a0 ? __switch_to+0x133/0x530 ? wq_worker_running+0xa/0x40 ? exc_page_fault+0x63/0x130 ? asm_exc_page_fault+0x22/0x30 ? set_page_extent_mapped+0x20/0xb0 relocate_file_extent_cluster+0x1a7/0x940 relocate_data_extent+0xaf/0x120 relocate_block_group+0x20f/0x480 btrfs_relocate_block_group+0x152/0x320 btrfs_relocate_chunk+0x3d/0x120 btrfs_reclaim_bgs_work+0x2ae/0x4e0 process_scheduled_works+0x184/0x370 worker_thread+0xc6/0x3e0 ? blk_add_timer+0xb0/0xb0 kthread+0xae/0xe0 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork+0x2f/0x40 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork_asm+0x11/0x20 </TASK> This occurs because cleanup_one_transaction() calls destroy_delalloc_inodes() which calls invalidate_inode_pages2() which takes the folio_lock before setting mapping to NULL. We fail to check this, and subsequently call set_extent_mapping(), which assumes that mapping != NULL (in fact it asserts that in debug mode) Note that the "fixes" patch here is not the one that introduced the race (the very first iteration of this code from 2009) but a more recent change that made this particular crash happen in practice. Fixes: e7f1326cc24e ("btrfs: set page extent mapped after read_folio in relocate_one_page") CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Qu Wenruo <wqu(a)suse.com> Signed-off-by: Boris Burkov <boris(a)bur.io> Signed-off-by: David Sterba <dsterba(a)suse.com> diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index bf267bdfa8f8..db8b42f674b7 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2902,6 +2902,7 @@ static int relocate_one_folio(struct reloc_control *rc, const bool use_rst = btrfs_need_stripe_tree_update(fs_info, rc->block_group->flags); ASSERT(index <= last_index); +again: folio = filemap_lock_folio(inode->i_mapping, index); if (IS_ERR(folio)) { @@ -2937,6 +2938,11 @@ static int relocate_one_folio(struct reloc_control *rc, ret = -EIO; goto release_folio; } + if (folio->mapping != inode->i_mapping) { + folio_unlock(folio); + folio_put(folio); + goto again; + } } /*

3 months, 4 weeks

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RE: Drive Results for MRO & Air Charter with Targeted Contact Solutions

by Jessica Garcia

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3 months, 4 weeks

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[to-be-updated] mm-hugetlb-fix-a-deadlock-with-pagecache_folio-and-hugetlb_fault_mutex_table.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: mm/hugetlb: fix a deadlock with pagecache_folio and hugetlb_fault_mutex_table has been removed from the -mm tree. Its filename was mm-hugetlb-fix-a-deadlock-with-pagecache_folio-and-hugetlb_fault_mutex_table.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Gavin Guo <gavinguo(a)igalia.com> Subject: mm/hugetlb: fix a deadlock with pagecache_folio and hugetlb_fault_mutex_table Date: Tue, 13 May 2025 17:34:48 +0800 Fix a deadlock which can be triggered by an internal syzkaller [1] reproducer and captured by bpftrace script [2] and its log [3] in this scenario: Process 1 Process 2 --- --- hugetlb_fault mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // take A hugetlb_wp mutex_unlock(B) // release B ... hugetlb_fault ... mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // blocked unmap_ref_private ... mutex_lock(B) // retake and blocked This is a ABBA deadlock involving two locks: - Lock A: pagecache_folio lock - Lock B: hugetlb_fault_mutex_table lock The deadlock occurs between two processes as follows: 1. The first process (let's call it Process 1) is handling a copy-on-write (COW) operation on a hugepage via hugetlb_wp. Due to insufficient reserved hugetlb pages, Process 1, owner of the reserved hugetlb page, attempts to unmap a hugepage owned by another process (non-owner) to satisfy the reservation. Before unmapping, Process 1 acquires lock B (hugetlb_fault_mutex_table lock) and then lock A (pagecache_folio lock). To proceed with the unmap, it releases Lock B but retains Lock A. After the unmap, Process 1 tries to reacquire Lock B. However, at this point, Lock B has already been acquired by another process. 2. The second process (Process 2) enters the hugetlb_fault handler during the unmap operation. It successfully acquires Lock B (hugetlb_fault_mutex_table lock) that was just released by Process 1, but then attempts to acquire Lock A (pagecache_folio lock), which is still held by Process 1. As a result, Process 1 (holding Lock A) is blocked waiting for Lock B (held by Process 2), while Process 2 (holding Lock B) is blocked waiting for Lock A (held by Process 1), constructing a ABBA deadlock scenario. The solution here is to unlock the pagecache_folio and provide the pagecache_folio_unlocked variable to the caller to have the visibility over the pagecache_folio status for subsequent handling. The error message: INFO: task repro_20250402_:13229 blocked for more than 64 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:25856 pid:13229 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00004006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 schedule_preempt_disabled+0x15/0x30 __mutex_lock+0x75f/0xeb0 hugetlb_wp+0xf88/0x3440 hugetlb_fault+0x14c8/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0x61d/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0010:__put_user_4+0xd/0x20 copy_process+0x1f4a/0x3d60 kernel_clone+0x210/0x8f0 __x64_sys_clone+0x18d/0x1f0 do_syscall_64+0x6a/0x120 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x41b26d </TASK> INFO: task repro_20250402_:13229 is blocked on a mutex likely owned by task repro_20250402_:13250. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> INFO: task repro_20250402_:13250 blocked for more than 65 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/35: #0: ffffffff879a7440 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 2 locks held by repro_20250402_/13229: #0: ffff888017d801e0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x37/0x300 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_wp+0xf88/0x3440 3 locks held by repro_20250402_/13250: #0: ffff8880177f3d08 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x41b/0x1490 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_fault+0x3b8/0x2c30 #2: ffff8880129500e8 (&resv_map->rw_sema){++++}-{4:4}, at: hugetlb_fault+0x494/0x2c30 Link: https://drive.google.com/file/d/1DVRnIW-vSayU5J1re9Ct_br3jJQU6Vpb/view?usp=… [1] Link: https://github.com/bboymimi/bpftracer/blob/master/scripts/hugetlb_lock_debu… [2] Link: https://drive.google.com/file/d/1bWq2-8o-BJAuhoHWX7zAhI6ggfhVzQUI/view?usp=… [3] Link: https://lkml.kernel.org/r/20250513093448.592150-1-gavinguo@igalia.com Fixes: 40549ba8f8e0 ("hugetlb: use new vma_lock for pmd sharing synchronization") Signed-off-by: Gavin Guo <gavinguo(a)igalia.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: Florent Revest <revest(a)google.com> Cc: Gavin Shan <gshan(a)redhat.com> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: Byungchul Park <byungchul(a)sk.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/hugetlb.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) --- a/mm/hugetlb.c~mm-hugetlb-fix-a-deadlock-with-pagecache_folio-and-hugetlb_fault_mutex_table +++ a/mm/hugetlb.c @@ -6131,7 +6131,8 @@ static void unmap_ref_private(struct mm_ * Keep the pte_same checks anyway to make transition from the mutex easier. */ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, - struct vm_fault *vmf) + struct vm_fault *vmf, + bool *pagecache_folio_unlocked) { struct vm_area_struct *vma = vmf->vma; struct mm_struct *mm = vma->vm_mm; @@ -6229,6 +6230,22 @@ retry_avoidcopy: folio_put(old_folio); /* + * The pagecache_folio needs to be unlocked to avoid + * deadlock and we won't re-lock it in hugetlb_wp(). The + * pagecache_folio could be truncated after being + * unlocked. So its state should not be relied + * subsequently. + * + * Setting *pagecache_folio_unlocked to true allows the + * caller to handle any necessary logic related to the + * folio's unlocked state. + */ + if (pagecache_folio) { + folio_unlock(pagecache_folio); + if (pagecache_folio_unlocked) + *pagecache_folio_unlocked = true; + } + /* * Drop hugetlb_fault_mutex and vma_lock before * unmapping. unmapping needs to hold vma_lock * in write mode. Dropping vma_lock in read mode @@ -6581,7 +6598,7 @@ static vm_fault_t hugetlb_no_page(struct hugetlb_count_add(pages_per_huge_page(h), mm); if ((vmf->flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) { /* Optimization, do the COW without a second fault */ - ret = hugetlb_wp(folio, vmf); + ret = hugetlb_wp(folio, vmf, NULL); } spin_unlock(vmf->ptl); @@ -6653,6 +6670,7 @@ vm_fault_t hugetlb_fault(struct mm_struc struct hstate *h = hstate_vma(vma); struct address_space *mapping; int need_wait_lock = 0; + bool pagecache_folio_unlocked = false; struct vm_fault vmf = { .vma = vma, .address = address & huge_page_mask(h), @@ -6807,7 +6825,8 @@ vm_fault_t hugetlb_fault(struct mm_struc if (flags & (FAULT_FLAG_WRITE|FAULT_FLAG_UNSHARE)) { if (!huge_pte_write(vmf.orig_pte)) { - ret = hugetlb_wp(pagecache_folio, &vmf); + ret = hugetlb_wp(pagecache_folio, &vmf, + &pagecache_folio_unlocked); goto out_put_page; } else if (likely(flags & FAULT_FLAG_WRITE)) { vmf.orig_pte = huge_pte_mkdirty(vmf.orig_pte); @@ -6824,10 +6843,14 @@ out_put_page: out_ptl: spin_unlock(vmf.ptl); - if (pagecache_folio) { + /* + * If the pagecache_folio is unlocked in hugetlb_wp(), we skip + * folio_unlock() here. + */ + if (pagecache_folio && !pagecache_folio_unlocked) folio_unlock(pagecache_folio); + if (pagecache_folio) folio_put(pagecache_folio); - } out_mutex: hugetlb_vma_unlock_read(vma); _ Patches currently in -mm which might be from gavinguo(a)igalia.com are

3 months, 4 weeks

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[PATCH 1/1] alloc_tag: handle module codetag load errors as module load failures

by Suren Baghdasaryan

Failures inside codetag_load_module() are currently ignored. As a result an error there would not cause a module load failure and freeing of the associated resources. Correct this behavior by propagating the error code to the caller and handling possible errors. With this change, error to allocate percpu counters, which happens at this stage, will not be ignored and will cause a module load failure and freeing of resources. With this change we also do not need to disable memory allocation profiling when this error happens, instead we fail to load the module. Fixes: 10075262888b ("alloc_tag: allocate percpu counters for module tags dynamically") Reported-by: Casey Chen <cachen(a)purestorage.com> Closes: https://lore.kernel.org/all/20250520231620.15259-1-cachen@purestorage.com/ Signed-off-by: Suren Baghdasaryan <surenb(a)google.com> Cc: stable(a)vger.kernel.org --- include/linux/codetag.h | 8 ++++---- kernel/module/main.c | 5 +++-- lib/alloc_tag.c | 12 +++++++----- lib/codetag.c | 34 +++++++++++++++++++++++++--------- 4 files changed, 39 insertions(+), 20 deletions(-) diff --git a/include/linux/codetag.h b/include/linux/codetag.h index 0ee4c21c6dbc..5f2b9a1f722c 100644 --- a/include/linux/codetag.h +++ b/include/linux/codetag.h @@ -36,8 +36,8 @@ union codetag_ref { struct codetag_type_desc { const char *section; size_t tag_size; - void (*module_load)(struct module *mod, - struct codetag *start, struct codetag *end); + int (*module_load)(struct module *mod, + struct codetag *start, struct codetag *end); void (*module_unload)(struct module *mod, struct codetag *start, struct codetag *end); #ifdef CONFIG_MODULES @@ -89,7 +89,7 @@ void *codetag_alloc_module_section(struct module *mod, const char *name, unsigned long align); void codetag_free_module_sections(struct module *mod); void codetag_module_replaced(struct module *mod, struct module *new_mod); -void codetag_load_module(struct module *mod); +int codetag_load_module(struct module *mod); void codetag_unload_module(struct module *mod); #else /* defined(CONFIG_CODE_TAGGING) && defined(CONFIG_MODULES) */ @@ -103,7 +103,7 @@ codetag_alloc_module_section(struct module *mod, const char *name, unsigned long align) { return NULL; } static inline void codetag_free_module_sections(struct module *mod) {} static inline void codetag_module_replaced(struct module *mod, struct module *new_mod) {} -static inline void codetag_load_module(struct module *mod) {} +static inline int codetag_load_module(struct module *mod) { return 0; } static inline void codetag_unload_module(struct module *mod) {} #endif /* defined(CONFIG_CODE_TAGGING) && defined(CONFIG_MODULES) */ diff --git a/kernel/module/main.c b/kernel/module/main.c index 5c6ab20240a6..9861c2ac5fd5 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -3399,11 +3399,12 @@ static int load_module(struct load_info *info, const char __user *uargs, goto sysfs_cleanup; } + if (codetag_load_module(mod)) + goto sysfs_cleanup; + /* Get rid of temporary copy. */ free_copy(info, flags); - codetag_load_module(mod); - /* Done! */ trace_module_load(mod); diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c index 45dae7da70e1..d48b80f3f007 100644 --- a/lib/alloc_tag.c +++ b/lib/alloc_tag.c @@ -607,15 +607,16 @@ static void release_module_tags(struct module *mod, bool used) mas_unlock(&mas); } -static void load_module(struct module *mod, struct codetag *start, struct codetag *stop) +static int load_module(struct module *mod, struct codetag *start, struct codetag *stop) { /* Allocate module alloc_tag percpu counters */ struct alloc_tag *start_tag; struct alloc_tag *stop_tag; struct alloc_tag *tag; + /* percpu counters for core allocations are already statically allocated */ if (!mod) - return; + return 0; start_tag = ct_to_alloc_tag(start); stop_tag = ct_to_alloc_tag(stop); @@ -627,12 +628,13 @@ static void load_module(struct module *mod, struct codetag *start, struct codeta free_percpu(tag->counters); tag->counters = NULL; } - shutdown_mem_profiling(true); - pr_err("Failed to allocate memory for allocation tag percpu counters in the module %s. Memory allocation profiling is disabled!\n", + pr_err("Failed to allocate memory for allocation tag percpu counters in the module %s\n", mod->name); - break; + return -ENOMEM; } } + + return 0; } static void replace_module(struct module *mod, struct module *new_mod) diff --git a/lib/codetag.c b/lib/codetag.c index de332e98d6f5..650d54d7e14d 100644 --- a/lib/codetag.c +++ b/lib/codetag.c @@ -167,6 +167,7 @@ static int codetag_module_init(struct codetag_type *cttype, struct module *mod) { struct codetag_range range; struct codetag_module *cmod; + int mod_id; int err; range = get_section_range(mod, cttype->desc.section); @@ -190,11 +191,20 @@ static int codetag_module_init(struct codetag_type *cttype, struct module *mod) cmod->range = range; down_write(&cttype->mod_lock); - err = idr_alloc(&cttype->mod_idr, cmod, 0, 0, GFP_KERNEL); - if (err >= 0) { - cttype->count += range_size(cttype, &range); - if (cttype->desc.module_load) - cttype->desc.module_load(mod, range.start, range.stop); + mod_id = idr_alloc(&cttype->mod_idr, cmod, 0, 0, GFP_KERNEL); + if (mod_id >= 0) { + if (cttype->desc.module_load) { + err = cttype->desc.module_load(mod, range.start, range.stop); + if (!err) + cttype->count += range_size(cttype, &range); + else + idr_remove(&cttype->mod_idr, mod_id); + } else { + cttype->count += range_size(cttype, &range); + err = 0; + } + } else { + err = mod_id; } up_write(&cttype->mod_lock); @@ -295,17 +305,23 @@ void codetag_module_replaced(struct module *mod, struct module *new_mod) mutex_unlock(&codetag_lock); } -void codetag_load_module(struct module *mod) +int codetag_load_module(struct module *mod) { struct codetag_type *cttype; + int ret = 0; if (!mod) - return; + return 0; mutex_lock(&codetag_lock); - list_for_each_entry(cttype, &codetag_types, link) - codetag_module_init(cttype, mod); + list_for_each_entry(cttype, &codetag_types, link) { + ret = codetag_module_init(cttype, mod); + if (ret) + break; + } mutex_unlock(&codetag_lock); + + return ret; } void codetag_unload_module(struct module *mod) base-commit: 9f3e87f6c8d4b28b96eb8bddb22d3ba4b846e10b -- 2.49.0.1112.g889b7c5bd8-goog

3 months, 4 weeks

2
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[PATCH v2 1/2] SUNRPC: Prevent hang on NFS mount with xprtsec=[m]tls

by cel＠kernel.org

From: Chuck Lever <chuck.lever(a)oracle.com> Engineers at Hammerspace noticed that sometimes mounting with "xprtsec=tls" hangs for a minute or so, and then times out, even when the NFS server is reachable and responsive. kTLS shuts off data_ready callbacks if strp->msg_ready is set to mitigate data_ready callbacks when a full TLS record is not yet ready to be read from the socket. Normally msg_ready is clear when the first TLS record arrives on a socket. However, I observed that sometimes tls_setsockopt() sets strp->msg_ready, and that prevents forward progress because tls_data_ready() becomes a no-op. Moreover, Jakub says: "If there's a full record queued at the time when [tlshd] passes the socket back to the kernel, it's up to the reader to read the already queued data out." So SunRPC cannot expect a data_ready call when ingress data is already waiting. Add an explicit poll after SunRPC's upper transport is set up to pick up any data that arrived after the TLS handshake but before transport set-up is complete. Reported-by: Steve Sears <sjs(a)hammerspace.com> Suggested-by: Jakub Kacinski <kuba(a)kernel.org> Fixes: 75eb6af7acdf ("SUNRPC: Add a TCP-with-TLS RPC transport class") Tested-by: Mike Snitzer <snitzer(a)kernel.org> Reviewed-by: Mike Snitzer <snitzer(a)kernel.org> Cc: stable(a)vger.kernel.org Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> --- net/sunrpc/xprtsock.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 83cc095846d3..4b10ecf4c265 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -2740,6 +2740,11 @@ static void xs_tcp_tls_setup_socket(struct work_struct *work) } rpc_shutdown_client(lower_clnt); + /* Check for ingress data that arrived before the socket's + * ->data_ready callback was set up. + */ + xs_poll_check_readable(upper_transport); + out_unlock: current_restore_flags(pflags, PF_MEMALLOC); upper_transport->clnt = NULL; -- 2.49.0

3 months, 4 weeks

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+ alloc_tag-handle-module-codetag-load-errors-as-module-load-failures.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: alloc_tag: handle module codetag load errors as module load failures has been added to the -mm mm-hotfixes-unstable branch. Its filename is alloc_tag-handle-module-codetag-load-errors-as-module-load-failures.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: Suren Baghdasaryan <surenb(a)google.com> Subject: alloc_tag: handle module codetag load errors as module load failures Date: Wed, 21 May 2025 09:06:02 -0700 Failures inside codetag_load_module() are currently ignored. As a result an error there would not cause a module load failure and freeing of the associated resources. Correct this behavior by propagating the error code to the caller and handling possible errors. With this change, error to allocate percpu counters, which happens at this stage, will not be ignored and will cause a module load failure and freeing of resources. With this change we also do not need to disable memory allocation profiling when this error happens, instead we fail to load the module. Link: https://lkml.kernel.org/r/20250521160602.1940771-1-surenb@google.com Fixes: 10075262888b ("alloc_tag: allocate percpu counters for module tags dynamically") Signed-off-by: Suren Baghdasaryan <surenb(a)google.com> Reported-by: Casey Chen <cachen(a)purestorage.com> Closes: https://lore.kernel.org/all/20250520231620.15259-1-cachen@purestorage.com/ Cc: Daniel Gomez <da.gomez(a)samsung.com> Cc: David Wang <00107082(a)163.com> Cc: Kent Overstreet <kent.overstreet(a)linux.dev> Cc: Luis Chamberalin <mcgrof(a)kernel.org> Cc: Petr Pavlu <petr.pavlu(a)suse.com> Cc: Sami Tolvanen <samitolvanen(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/codetag.h | 8 ++++---- kernel/module/main.c | 5 +++-- lib/alloc_tag.c | 12 +++++++----- lib/codetag.c | 34 +++++++++++++++++++++++++--------- 4 files changed, 39 insertions(+), 20 deletions(-) --- a/include/linux/codetag.h~alloc_tag-handle-module-codetag-load-errors-as-module-load-failures +++ a/include/linux/codetag.h @@ -36,8 +36,8 @@ union codetag_ref { struct codetag_type_desc { const char *section; size_t tag_size; - void (*module_load)(struct module *mod, - struct codetag *start, struct codetag *end); + int (*module_load)(struct module *mod, + struct codetag *start, struct codetag *end); void (*module_unload)(struct module *mod, struct codetag *start, struct codetag *end); #ifdef CONFIG_MODULES @@ -89,7 +89,7 @@ void *codetag_alloc_module_section(struc unsigned long align); void codetag_free_module_sections(struct module *mod); void codetag_module_replaced(struct module *mod, struct module *new_mod); -void codetag_load_module(struct module *mod); +int codetag_load_module(struct module *mod); void codetag_unload_module(struct module *mod); #else /* defined(CONFIG_CODE_TAGGING) && defined(CONFIG_MODULES) */ @@ -103,7 +103,7 @@ codetag_alloc_module_section(struct modu unsigned long align) { return NULL; } static inline void codetag_free_module_sections(struct module *mod) {} static inline void codetag_module_replaced(struct module *mod, struct module *new_mod) {} -static inline void codetag_load_module(struct module *mod) {} +static inline int codetag_load_module(struct module *mod) { return 0; } static inline void codetag_unload_module(struct module *mod) {} #endif /* defined(CONFIG_CODE_TAGGING) && defined(CONFIG_MODULES) */ --- a/kernel/module/main.c~alloc_tag-handle-module-codetag-load-errors-as-module-load-failures +++ a/kernel/module/main.c @@ -3399,11 +3399,12 @@ static int load_module(struct load_info goto sysfs_cleanup; } + if (codetag_load_module(mod)) + goto sysfs_cleanup; + /* Get rid of temporary copy. */ free_copy(info, flags); - codetag_load_module(mod); - /* Done! */ trace_module_load(mod); --- a/lib/alloc_tag.c~alloc_tag-handle-module-codetag-load-errors-as-module-load-failures +++ a/lib/alloc_tag.c @@ -618,15 +618,16 @@ out: mas_unlock(&mas); } -static void load_module(struct module *mod, struct codetag *start, struct codetag *stop) +static int load_module(struct module *mod, struct codetag *start, struct codetag *stop) { /* Allocate module alloc_tag percpu counters */ struct alloc_tag *start_tag; struct alloc_tag *stop_tag; struct alloc_tag *tag; + /* percpu counters for core allocations are already statically allocated */ if (!mod) - return; + return 0; start_tag = ct_to_alloc_tag(start); stop_tag = ct_to_alloc_tag(stop); @@ -638,12 +639,13 @@ static void load_module(struct module *m free_percpu(tag->counters); tag->counters = NULL; } - shutdown_mem_profiling(true); - pr_err("Failed to allocate memory for allocation tag percpu counters in the module %s. Memory allocation profiling is disabled!\n", + pr_err("Failed to allocate memory for allocation tag percpu counters in the module %s\n", mod->name); - break; + return -ENOMEM; } } + + return 0; } static void replace_module(struct module *mod, struct module *new_mod) --- a/lib/codetag.c~alloc_tag-handle-module-codetag-load-errors-as-module-load-failures +++ a/lib/codetag.c @@ -167,6 +167,7 @@ static int codetag_module_init(struct co { struct codetag_range range; struct codetag_module *cmod; + int mod_id; int err; range = get_section_range(mod, cttype->desc.section); @@ -190,11 +191,20 @@ static int codetag_module_init(struct co cmod->range = range; down_write(&cttype->mod_lock); - err = idr_alloc(&cttype->mod_idr, cmod, 0, 0, GFP_KERNEL); - if (err >= 0) { - cttype->count += range_size(cttype, &range); - if (cttype->desc.module_load) - cttype->desc.module_load(mod, range.start, range.stop); + mod_id = idr_alloc(&cttype->mod_idr, cmod, 0, 0, GFP_KERNEL); + if (mod_id >= 0) { + if (cttype->desc.module_load) { + err = cttype->desc.module_load(mod, range.start, range.stop); + if (!err) + cttype->count += range_size(cttype, &range); + else + idr_remove(&cttype->mod_idr, mod_id); + } else { + cttype->count += range_size(cttype, &range); + err = 0; + } + } else { + err = mod_id; } up_write(&cttype->mod_lock); @@ -295,17 +305,23 @@ void codetag_module_replaced(struct modu mutex_unlock(&codetag_lock); } -void codetag_load_module(struct module *mod) +int codetag_load_module(struct module *mod) { struct codetag_type *cttype; + int ret = 0; if (!mod) - return; + return 0; mutex_lock(&codetag_lock); - list_for_each_entry(cttype, &codetag_types, link) - codetag_module_init(cttype, mod); + list_for_each_entry(cttype, &codetag_types, link) { + ret = codetag_module_init(cttype, mod); + if (ret) + break; + } mutex_unlock(&codetag_lock); + + return ret; } void codetag_unload_module(struct module *mod) _ Patches currently in -mm which might be from surenb(a)google.com are alloc_tag-allocate-percpu-counters-for-module-tags-dynamically.patch alloc_tag-handle-module-codetag-load-errors-as-module-load-failures.patch

3 months, 4 weeks

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dot files in cifs mounted share

by bd730c5053df9efb

Hi! I upgraded the stock kernel on my slackware machine from 5.15.161 to 6.12.16 and I realized that I was not being able to create dot files in a cifs mounted volume. I just updated the kernel to 6.12.29 and I find the same behavior. The share is exported from a samba machine whose smb.conf file is the following (redacted for privacy) [global] security = ADS workgroup = ADDOMAIN realm = ADDOMAIN.COM username map = /etc/samba/user.map kerberos method = secrets and keytab winbind refresh tickets = Yes winbind expand groups = 2 winbind offline logon = Yes # winbind enum users = Yes # winbind enum groups = Yes dedicated keytab file = /etc/krb5.keytab idmap config * : backend = tdb idmap config * : range = 3000-7999 idmap config addomain:backend = ad idmap config addomain:schema_mode = rfc2307 idmap config addomain:range = 10000-999999 idmap config addomain:unix_nss_info = Yes vfs objects = acl_xattr map acl inherit = Yes store dos attributes = Yes printing = CUPS log level = 1 auth:3 auth_audit:3 auth_json_audit:3 rpc_server:spoolss = external rpc_daemon:spoolssd = fork spoolssd:prefork_min_children = 5 spoolssd:prefork_max_children = 25 spoolssd:prefork_spawn_rate = 5 spoolssd:prefork_max_allowed_clients = 100 spoolssd:prefork_child_min_life = 60 ntlm auth = mschapv2-and-ntlmv2-only [printers] path = /var/spool/samba printable = Yes [print$] path = /srv/samba/printer_drivers read only = No [users] path = /home/users read only = No [Publicas] path = /home/shares/publicas read only = No The client is succesfully joined to the domain and the shares are mounted with the following parameters (redacted for privacy) //fileserver.addomain.com/Users/username on /home/username/.Documents type cifs (rw,relatime,vers=3.1.1,cache=strict,username=username,domain=ADDOMAIN,uid=11002,forceuid,gid=10513,forcegid,addr=192.168.25.6,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,reparse=nfs,rsize=4194304,wsize=4194304,bsize=1048576,retrans=1,echo_interval=60,actimeo=1,closetimeo=1) //fileserver.addomain.com/Publicas on /home/username/Public type cifs (rw,relatime,vers=3.1.1,cache=strict,username=username,domain=ADDOMAIN,uid=11002,forceuid,gid=10513,forcegid,addr=192.168.25.6,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,reparse=nfs,rsize=4194304,wsize=4194304,bsize=1048576,retrans=1,echo_interval=60,actimeo=1,closetimeo=1) If I issue the following command cd /home/username/.Documents/ touch .foo.bar (this file doesn't exist on the volume) I get the following error "touch: cannot touch '.foo.bar': Permission denied" When I increase the debug by issuing the following command all echo 7 > /proc/fs/cifs/cifsFYI All I get in dmesg is [ 2702.654271] CIFS: Status code returned 0xc0000034 STATUS_OBJECT_NAME_NOT_FOUND However the even weirder part is that on the "Publicas" volume I have no such issue cd /home/username/Public/ touch ./.foo.bar ls -alt -rwxr-xr-x 1 ADDOMAIN\username ADDOMAIN\domain users 0 may 21 14:57 .foo.bar If I boot back 5.15.161 I have no such problem. Thanks in advance! Best regards, Dave.

3 months, 4 weeks

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