diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 7d8b17ce8804..94fa46d2d805 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2680,7 +2680,11 @@ nosmt=force: Force disable SMT, cannot be undone via the sysfs control file.
- nospectre_v2 [X86] Disable all mitigations for the Spectre variant 2 + nospectre_v1 [PPC] Disable mitigations for Spectre Variant 1 (bounds + check bypass). With this option data leaks are possible + in the system. + + nospectre_v2 [X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may allow data leaks with this option, which is equivalent to spectre_v2=off. diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index a054b5ad410a..828fcd6711b3 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -402,6 +402,7 @@ tcp_min_rtt_wlen - INTEGER minimum RTT when it is moved to a longer path (e.g., due to traffic engineering). A longer window makes the filter more resistant to RTT inflations such as transient congestion. The unit is seconds. + Possible values: 0 - 86400 (1 day) Default: 300
tcp_moderate_rcvbuf - BOOLEAN diff --git a/Makefile b/Makefile index 47a9f9883bdd..b27ffc1814e8 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 4 PATCHLEVEL = 14 -SUBLEVEL = 114 +SUBLEVEL = 115 EXTRAVERSION = NAME = Petit Gorille
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 5f687ba1eaa7..8ca539bdac35 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -1393,7 +1393,21 @@ ENTRY(efi_stub_entry)
@ Preserve return value of efi_entry() in r4 mov r4, r0 - bl cache_clean_flush + + @ our cache maintenance code relies on CP15 barrier instructions + @ but since we arrived here with the MMU and caches configured + @ by UEFI, we must check that the CP15BEN bit is set in SCTLR. + @ Note that this bit is RAO/WI on v6 and earlier, so the ISB in + @ the enable path will be executed on v7+ only. + mrc p15, 0, r1, c1, c0, 0 @ read SCTLR + tst r1, #(1 << 5) @ CP15BEN bit set? + bne 0f + orr r1, r1, #(1 << 5) @ CP15 barrier instructions + mcr p15, 0, r1, c1, c0, 0 @ write SCTLR + ARM( .inst 0xf57ff06f @ v7+ isb ) + THUMB( isb ) + +0: bl cache_clean_flush bl cache_off
@ Set parameters for booting zImage according to boot protocol diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 9ebe3e2403b1..c6b2e484d6c1 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -125,7 +125,7 @@ trace_a_syscall: subu t1, v0, __NR_O32_Linux move a1, v0 bnez t1, 1f /* __NR_syscall at offset 0 */ - lw a1, PT_R4(sp) /* Arg1 for __NR_syscall case */ + ld a1, PT_R4(sp) /* Arg1 for __NR_syscall case */ .set pop
1: jal syscall_trace_enter diff --git a/arch/x86/Makefile b/arch/x86/Makefile index c5290aecdf06..eb1f8f249dc3 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -242,6 +242,15 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables # Avoid indirect branches in kernel to deal with Spectre ifdef CONFIG_RETPOLINE KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) + # Additionally, avoid generating expensive indirect jumps which + # are subject to retpolines for small number of switch cases. + # clang turns off jump table generation by default when under + # retpoline builds, however, gcc does not for x86. This has + # only been fixed starting from gcc stable version 8.4.0 and + # onwards, but not for older ones. See gcc bug #86952. + ifndef CONFIG_CC_IS_CLANG + KBUILD_CFLAGS += $(call cc-option,-fno-jump-tables) + endif endif
archscripts: scripts_basic diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index b9281f2725a6..e0b0399ff7ec 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -945,14 +945,13 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
index = page - alloc->pages; page_addr = (uintptr_t)alloc->buffer + index * PAGE_SIZE; + + mm = alloc->vma_vm_mm; + if (!mmget_not_zero(mm)) + goto err_mmget; + if (!down_write_trylock(&mm->mmap_sem)) + goto err_down_write_mmap_sem_failed; vma = binder_alloc_get_vma(alloc); - if (vma) { - if (!mmget_not_zero(alloc->vma_vm_mm)) - goto err_mmget; - mm = alloc->vma_vm_mm; - if (!down_write_trylock(&mm->mmap_sem)) - goto err_down_write_mmap_sem_failed; - }
list_lru_isolate(lru, item); spin_unlock(lock); @@ -965,10 +964,9 @@ enum lru_status binder_alloc_free_page(struct list_head *item, PAGE_SIZE);
trace_binder_unmap_user_end(alloc, index); - - up_write(&mm->mmap_sem); - mmput(mm); } + up_write(&mm->mmap_sem); + mmput(mm);
trace_binder_unmap_kernel_start(alloc, index);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 24a3fb35614f..bd447de4a5b8 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -82,7 +82,6 @@
static DEFINE_IDR(loop_index_idr); static DEFINE_MUTEX(loop_index_mutex); -static DEFINE_MUTEX(loop_ctl_mutex);
static int max_part; static int part_shift; @@ -1019,7 +1018,7 @@ static int loop_clr_fd(struct loop_device *lo) */ if (atomic_read(&lo->lo_refcnt) > 1) { lo->lo_flags |= LO_FLAGS_AUTOCLEAR; - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return 0; }
@@ -1071,12 +1070,12 @@ static int loop_clr_fd(struct loop_device *lo) if (!part_shift) lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN; loop_unprepare_queue(lo); - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); /* - * Need not hold loop_ctl_mutex to fput backing file. - * Calling fput holding loop_ctl_mutex triggers a circular + * Need not hold lo_ctl_mutex to fput backing file. + * Calling fput holding lo_ctl_mutex triggers a circular * lock dependency possibility warning as fput can take - * bd_mutex which is usually taken before loop_ctl_mutex. + * bd_mutex which is usually taken before lo_ctl_mutex. */ fput(filp); return 0; @@ -1195,7 +1194,7 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info) int ret;
if (lo->lo_state != Lo_bound) { - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return -ENXIO; }
@@ -1214,10 +1213,10 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info) lo->lo_encrypt_key_size); }
- /* Drop loop_ctl_mutex while we call into the filesystem. */ + /* Drop lo_ctl_mutex while we call into the filesystem. */ path = lo->lo_backing_file->f_path; path_get(&path); - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); ret = vfs_getattr(&path, &stat, STATX_INO, AT_STATX_SYNC_AS_STAT); if (!ret) { info->lo_device = huge_encode_dev(stat.dev); @@ -1309,7 +1308,7 @@ loop_get_status_old(struct loop_device *lo, struct loop_info __user *arg) { int err;
if (!arg) { - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return -EINVAL; } err = loop_get_status(lo, &info64); @@ -1327,7 +1326,7 @@ loop_get_status64(struct loop_device *lo, struct loop_info64 __user *arg) { int err;
if (!arg) { - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return -EINVAL; } err = loop_get_status(lo, &info64); @@ -1402,7 +1401,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, struct loop_device *lo = bdev->bd_disk->private_data; int err;
- mutex_lock_nested(&loop_ctl_mutex, 1); + mutex_lock_nested(&lo->lo_ctl_mutex, 1); switch (cmd) { case LOOP_SET_FD: err = loop_set_fd(lo, mode, bdev, arg); @@ -1411,7 +1410,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, err = loop_change_fd(lo, bdev, arg); break; case LOOP_CLR_FD: - /* loop_clr_fd would have unlocked loop_ctl_mutex on success */ + /* loop_clr_fd would have unlocked lo_ctl_mutex on success */ err = loop_clr_fd(lo); if (!err) goto out_unlocked; @@ -1424,7 +1423,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, break; case LOOP_GET_STATUS: err = loop_get_status_old(lo, (struct loop_info __user *) arg); - /* loop_get_status() unlocks loop_ctl_mutex */ + /* loop_get_status() unlocks lo_ctl_mutex */ goto out_unlocked; case LOOP_SET_STATUS64: err = -EPERM; @@ -1434,7 +1433,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, break; case LOOP_GET_STATUS64: err = loop_get_status64(lo, (struct loop_info64 __user *) arg); - /* loop_get_status() unlocks loop_ctl_mutex */ + /* loop_get_status() unlocks lo_ctl_mutex */ goto out_unlocked; case LOOP_SET_CAPACITY: err = -EPERM; @@ -1454,7 +1453,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, default: err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL; } - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex);
out_unlocked: return err; @@ -1571,7 +1570,7 @@ loop_get_status_compat(struct loop_device *lo, int err;
if (!arg) { - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return -EINVAL; } err = loop_get_status(lo, &info64); @@ -1588,16 +1587,16 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
switch(cmd) { case LOOP_SET_STATUS: - mutex_lock(&loop_ctl_mutex); + mutex_lock(&lo->lo_ctl_mutex); err = loop_set_status_compat( lo, (const struct compat_loop_info __user *) arg); - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); break; case LOOP_GET_STATUS: - mutex_lock(&loop_ctl_mutex); + mutex_lock(&lo->lo_ctl_mutex); err = loop_get_status_compat( lo, (struct compat_loop_info __user *) arg); - /* loop_get_status() unlocks loop_ctl_mutex */ + /* loop_get_status() unlocks lo_ctl_mutex */ break; case LOOP_SET_CAPACITY: case LOOP_CLR_FD: @@ -1641,7 +1640,7 @@ static void __lo_release(struct loop_device *lo) if (atomic_dec_return(&lo->lo_refcnt)) return;
- mutex_lock(&loop_ctl_mutex); + mutex_lock(&lo->lo_ctl_mutex); if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) { /* * In autoclear mode, stop the loop thread @@ -1659,7 +1658,7 @@ static void __lo_release(struct loop_device *lo) blk_mq_unfreeze_queue(lo->lo_queue); }
- mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); }
static void lo_release(struct gendisk *disk, fmode_t mode) @@ -1705,10 +1704,10 @@ static int unregister_transfer_cb(int id, void *ptr, void *data) struct loop_device *lo = ptr; struct loop_func_table *xfer = data;
- mutex_lock(&loop_ctl_mutex); + mutex_lock(&lo->lo_ctl_mutex); if (lo->lo_encryption == xfer) loop_release_xfer(lo); - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); return 0; }
@@ -1881,6 +1880,7 @@ static int loop_add(struct loop_device **l, int i) if (!part_shift) disk->flags |= GENHD_FL_NO_PART_SCAN; disk->flags |= GENHD_FL_EXT_DEVT; + mutex_init(&lo->lo_ctl_mutex); atomic_set(&lo->lo_refcnt, 0); lo->lo_number = i; spin_lock_init(&lo->lo_lock); @@ -1993,19 +1993,19 @@ static long loop_control_ioctl(struct file *file, unsigned int cmd, ret = loop_lookup(&lo, parm); if (ret < 0) break; - mutex_lock(&loop_ctl_mutex); + mutex_lock(&lo->lo_ctl_mutex); if (lo->lo_state != Lo_unbound) { ret = -EBUSY; - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); break; } if (atomic_read(&lo->lo_refcnt) > 0) { ret = -EBUSY; - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); break; } lo->lo_disk->private_data = NULL; - mutex_unlock(&loop_ctl_mutex); + mutex_unlock(&lo->lo_ctl_mutex); idr_remove(&loop_index_idr, lo->lo_number); loop_remove(lo); break; diff --git a/drivers/block/loop.h b/drivers/block/loop.h index b2251752452b..dfc54ceba410 100644 --- a/drivers/block/loop.h +++ b/drivers/block/loop.h @@ -54,6 +54,7 @@ struct loop_device {
spinlock_t lo_lock; int lo_state; + struct mutex lo_ctl_mutex; struct kthread_worker worker; struct task_struct *worker_task; bool use_dio; diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index a46776a84480..133178c9b2cf 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -488,18 +488,18 @@ struct zram_work { struct zram *zram; unsigned long entry; struct bio *bio; + struct bio_vec bvec; };
#if PAGE_SIZE != 4096 static void zram_sync_read(struct work_struct *work) { - struct bio_vec bvec; struct zram_work *zw = container_of(work, struct zram_work, work); struct zram *zram = zw->zram; unsigned long entry = zw->entry; struct bio *bio = zw->bio;
- read_from_bdev_async(zram, &bvec, entry, bio); + read_from_bdev_async(zram, &zw->bvec, entry, bio); }
/* @@ -512,6 +512,7 @@ static int read_from_bdev_sync(struct zram *zram, struct bio_vec *bvec, { struct zram_work work;
+ work.bvec = *bvec; work.zram = zram; work.entry = entry; work.bio = bio; diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 9d6ce5051d8f..77b126525dac 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1332,6 +1332,7 @@ static enum dma_status rcar_dmac_tx_status(struct dma_chan *chan, enum dma_status status; unsigned long flags; unsigned int residue; + bool cyclic;
status = dma_cookie_status(chan, cookie, txstate); if (status == DMA_COMPLETE || !txstate) @@ -1339,10 +1340,11 @@ static enum dma_status rcar_dmac_tx_status(struct dma_chan *chan,
spin_lock_irqsave(&rchan->lock, flags); residue = rcar_dmac_chan_get_residue(rchan, cookie); + cyclic = rchan->desc.running ? rchan->desc.running->cyclic : false; spin_unlock_irqrestore(&rchan->lock, flags);
/* if there's no residue, the cookie is complete */ - if (!residue) + if (!residue && !cyclic) return DMA_COMPLETE;
dma_set_residue(txstate, residue); diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index 14eb8a064562..da2d309574ba 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -326,8 +326,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, bool *enabled, int width, int height) { struct drm_i915_private *dev_priv = to_i915(fb_helper->dev); + unsigned long conn_configured, conn_seq, mask; unsigned int count = min(fb_helper->connector_count, BITS_PER_LONG); - unsigned long conn_configured, conn_seq; int i, j; bool *save_enabled; bool fallback = true, ret = true; @@ -345,9 +345,10 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, drm_modeset_backoff(&ctx);
memcpy(save_enabled, enabled, count); - conn_seq = GENMASK(count - 1, 0); + mask = GENMASK(count - 1, 0); conn_configured = 0; retry: + conn_seq = conn_configured; for (i = 0; i < count; i++) { struct drm_fb_helper_connector *fb_conn; struct drm_connector *connector; @@ -360,8 +361,7 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, if (conn_configured & BIT(i)) continue;
- /* First pass, only consider tiled connectors */ - if (conn_seq == GENMASK(count - 1, 0) && !connector->has_tile) + if (conn_seq == 0 && !connector->has_tile) continue;
if (connector->status == connector_status_connected) @@ -465,10 +465,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, conn_configured |= BIT(i); }
- if (conn_configured != conn_seq) { /* repeat until no more are found */ - conn_seq = conn_configured; + if ((conn_configured & mask) != mask && conn_configured != conn_seq) goto retry; - }
/* * If the BIOS didn't enable everything it could, fall back to have the diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index ce1e3b9e14c9..7747f160c740 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -867,7 +867,7 @@ static void vc4_crtc_reset(struct drm_crtc *crtc) { if (crtc->state) - __drm_atomic_helper_crtc_destroy_state(crtc->state); + vc4_crtc_destroy_state(crtc, crtc->state);
crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL); if (crtc->state) diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c index bb27a3150563..2a3ae9006c58 100644 --- a/drivers/hwtracing/intel_th/gth.c +++ b/drivers/hwtracing/intel_th/gth.c @@ -624,7 +624,7 @@ static void intel_th_gth_unassign(struct intel_th_device *thdev, othdev->output.port = -1; othdev->output.active = false; gth->output[port].output = NULL; - for (master = 0; master < TH_CONFIGURABLE_MASTERS; master++) + for (master = 0; master <= TH_CONFIGURABLE_MASTERS; master++) if (gth->master[master] == port) gth->master[master] = -1; spin_unlock(>h->gth_lock); diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index 524e6134642e..e7013d2d4f0e 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -611,11 +611,6 @@ static int rvt_set_page(struct ib_mr *ibmr, u64 addr) if (unlikely(mapped_segs == mr->mr.max_segs)) return -ENOMEM;
- if (mr->mr.length == 0) { - mr->mr.user_base = addr; - mr->mr.iova = addr; - } - m = mapped_segs / RVT_SEGSZ; n = mapped_segs % RVT_SEGSZ; mr->mr.map[m]->segs[n].vaddr = (void *)addr; @@ -633,17 +628,24 @@ static int rvt_set_page(struct ib_mr *ibmr, u64 addr) * @sg_nents: number of entries in sg * @sg_offset: offset in bytes into sg * + * Overwrite rvt_mr length with mr length calculated by ib_sg_to_pages. + * * Return: number of sg elements mapped to the memory region */ int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset) { struct rvt_mr *mr = to_imr(ibmr); + int ret;
mr->mr.length = 0; mr->mr.page_shift = PAGE_SHIFT; - return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, - rvt_set_page); + ret = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rvt_set_page); + mr->mr.user_base = ibmr->iova; + mr->mr.iova = ibmr->iova; + mr->mr.offset = ibmr->iova - (u64)mr->mr.map[0]->segs[0].vaddr; + mr->mr.length = (size_t)ibmr->length; + return ret; }
/** @@ -674,6 +676,7 @@ int rvt_fast_reg_mr(struct rvt_qp *qp, struct ib_mr *ibmr, u32 key, ibmr->rkey = key; mr->mr.lkey = key; mr->mr.access_flags = access; + mr->mr.iova = ibmr->iova; atomic_set(&mr->mr.lkey_invalid, 0);
return 0; diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c index bc5e37f30ac1..bb63b8823d62 100644 --- a/drivers/input/rmi4/rmi_f11.c +++ b/drivers/input/rmi4/rmi_f11.c @@ -1239,7 +1239,7 @@ static int rmi_f11_initialize(struct rmi_function *fn) }
rc = f11_write_control_regs(fn, &f11->sens_query, - &f11->dev_controls, fn->fd.query_base_addr); + &f11->dev_controls, fn->fd.control_base_addr); if (rc) dev_warn(&fn->dev, "Failed to write control registers\n");
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 036379a23499..23f0f4eaaa2e 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -2917,17 +2917,17 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv) goto bad; } ic->sectors_per_block = val >> SECTOR_SHIFT; - } else if (!memcmp(opt_string, "internal_hash:", strlen("internal_hash:"))) { + } else if (!strncmp(opt_string, "internal_hash:", strlen("internal_hash:"))) { r = get_alg_and_key(opt_string, &ic->internal_hash_alg, &ti->error, "Invalid internal_hash argument"); if (r) goto bad; - } else if (!memcmp(opt_string, "journal_crypt:", strlen("journal_crypt:"))) { + } else if (!strncmp(opt_string, "journal_crypt:", strlen("journal_crypt:"))) { r = get_alg_and_key(opt_string, &ic->journal_crypt_alg, &ti->error, "Invalid journal_crypt argument"); if (r) goto bad; - } else if (!memcmp(opt_string, "journal_mac:", strlen("journal_mac:"))) { + } else if (!strncmp(opt_string, "journal_mac:", strlen("journal_mac:"))) { r = get_alg_and_key(opt_string, &ic->journal_mac_alg, &ti->error, "Invalid journal_mac argument"); if (r) diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c index 103c0a742d03..fef0bff4a54b 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c @@ -58,6 +58,8 @@ static int __init fm10k_init_module(void) /* create driver workqueue */ fm10k_workqueue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, fm10k_driver_name); + if (!fm10k_workqueue) + return -ENOMEM;
fm10k_dbg_init();
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index d9db3ad3d765..26ad27b3f687 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1622,7 +1622,7 @@ static int mlx5e_get_module_info(struct net_device *netdev, break; case MLX5_MODULE_ID_SFP: modinfo->type = ETH_MODULE_SFF_8472; - modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; + modinfo->eeprom_len = MLX5_EEPROM_PAGE_LENGTH; break; default: netdev_err(priv->netdev, "%s: cable type not recognized:0x%x\n", diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index ccb6287aeeb7..1d2bb7fa68b1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -392,10 +392,6 @@ int mlx5_query_module_eeprom(struct mlx5_core_dev *dev, size -= offset + size - MLX5_EEPROM_PAGE_LENGTH;
i2c_addr = MLX5_I2C_ADDR_LOW; - if (offset >= MLX5_EEPROM_PAGE_LENGTH) { - i2c_addr = MLX5_I2C_ADDR_HIGH; - offset -= MLX5_EEPROM_PAGE_LENGTH; - }
MLX5_SET(mcia_reg, in, l, 0); MLX5_SET(mcia_reg, in, module, module_num); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 29d37355d8c6..ab09f9e43c79 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -2521,11 +2521,11 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, if (err) return err;
+ mlxsw_sp_port->link.autoneg = autoneg; + if (!netif_running(dev)) return 0;
- mlxsw_sp_port->link.autoneg = autoneg; - mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f2429ec07b57..ecf3f8c1bc0e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2582,8 +2582,6 @@ static int stmmac_open(struct net_device *dev) struct stmmac_priv *priv = netdev_priv(dev); int ret;
- stmmac_check_ether_addr(priv); - if (priv->hw->pcs != STMMAC_PCS_RGMII && priv->hw->pcs != STMMAC_PCS_TBI && priv->hw->pcs != STMMAC_PCS_RTBI) { @@ -4213,6 +4211,8 @@ int stmmac_dvr_probe(struct device *device, if (ret) goto error_hw_init;
+ stmmac_check_ether_addr(priv); + /* Configure real RX and TX queues */ netif_set_real_num_rx_queues(ndev, priv->plat->rx_queues_to_use); netif_set_real_num_tx_queues(ndev, priv->plat->tx_queues_to_use); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c index d819e8eaba12..cc1e887e47b5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c @@ -159,6 +159,12 @@ static const struct dmi_system_id quark_pci_dmi[] = { }, .driver_data = (void *)&galileo_stmmac_dmi_data, }, + /* + * There are 2 types of SIMATIC IOT2000: IOT20202 and IOT2040. + * The asset tag "6ES7647-0AA00-0YA2" is only for IOT2020 which + * has only one pci network device while other asset tags are + * for IOT2040 which has two. + */ { .matches = { DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"), @@ -170,8 +176,6 @@ static const struct dmi_system_id quark_pci_dmi[] = { { .matches = { DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"), - DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG, - "6ES7647-0AA00-1YA2"), }, .driver_data = (void *)&iot2040_stmmac_dmi_data, }, diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c index f4e93f5fc204..ea90db3c7705 100644 --- a/drivers/net/slip/slhc.c +++ b/drivers/net/slip/slhc.c @@ -153,7 +153,7 @@ slhc_init(int rslots, int tslots) void slhc_free(struct slcompress *comp) { - if ( comp == NULLSLCOMPR ) + if ( IS_ERR_OR_NULL(comp) ) return;
if ( comp->tstate != NULLSLSTATE ) diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index fea141e71705..e9a92ed5a308 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1157,6 +1157,12 @@ static int team_port_add(struct team *team, struct net_device *port_dev) return -EINVAL; }
+ if (netdev_has_upper_dev(dev, port_dev)) { + netdev_err(dev, "Device %s is already an upper device of the team interface\n", + portname); + return -EBUSY; + } + if (port_dev->features & NETIF_F_VLAN_CHALLENGED && vlan_uses_dev(dev)) { netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 2f3dbf1c3c2d..79d2c0bf7870 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1891,14 +1891,11 @@ int usb_runtime_idle(struct device *dev) return -EBUSY; }
-int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) +static int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) { struct usb_hcd *hcd = bus_to_hcd(udev->bus); int ret = -EPERM;
- if (enable && !udev->usb2_hw_lpm_allowed) - return 0; - if (hcd->driver->set_usb2_hw_lpm) { ret = hcd->driver->set_usb2_hw_lpm(hcd, udev, enable); if (!ret) @@ -1908,6 +1905,24 @@ int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) return ret; }
+int usb_enable_usb2_hardware_lpm(struct usb_device *udev) +{ + if (!udev->usb2_hw_lpm_capable || + !udev->usb2_hw_lpm_allowed || + udev->usb2_hw_lpm_enabled) + return 0; + + return usb_set_usb2_hardware_lpm(udev, 1); +} + +int usb_disable_usb2_hardware_lpm(struct usb_device *udev) +{ + if (!udev->usb2_hw_lpm_enabled) + return 0; + + return usb_set_usb2_hardware_lpm(udev, 0); +} + #endif /* CONFIG_PM */
struct bus_type usb_bus_type = { diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 4a4e666a8e09..a9541525ea4f 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3174,8 +3174,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) }
/* disable USB2 hardware LPM */ - if (udev->usb2_hw_lpm_enabled == 1) - usb_set_usb2_hardware_lpm(udev, 0); + usb_disable_usb2_hardware_lpm(udev);
if (usb_disable_ltm(udev)) { dev_err(&udev->dev, "Failed to disable LTM before suspend\n."); @@ -3213,8 +3212,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) usb_enable_ltm(udev); err_ltm: /* Try to enable USB2 hardware LPM again */ - if (udev->usb2_hw_lpm_capable == 1) - usb_set_usb2_hardware_lpm(udev, 1); + usb_enable_usb2_hardware_lpm(udev);
if (udev->do_remote_wakeup) (void) usb_disable_remote_wakeup(udev); @@ -3497,8 +3495,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) hub_port_logical_disconnect(hub, port1); } else { /* Try to enable USB2 hardware LPM */ - if (udev->usb2_hw_lpm_capable == 1) - usb_set_usb2_hardware_lpm(udev, 1); + usb_enable_usb2_hardware_lpm(udev);
/* Try to enable USB3 LTM */ usb_enable_ltm(udev); @@ -4334,7 +4331,7 @@ static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || connect_type == USB_PORT_CONNECT_TYPE_HARD_WIRED) { udev->usb2_hw_lpm_allowed = 1; - usb_set_usb2_hardware_lpm(udev, 1); + usb_enable_usb2_hardware_lpm(udev); } }
@@ -5491,8 +5488,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) /* Disable USB2 hardware LPM. * It will be re-enabled by the enumeration process. */ - if (udev->usb2_hw_lpm_enabled == 1) - usb_set_usb2_hardware_lpm(udev, 0); + usb_disable_usb2_hardware_lpm(udev);
/* Disable LPM and LTM while we reset the device and reinstall the alt * settings. Device-initiated LPM settings, and system exit latency @@ -5602,7 +5598,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
done: /* Now that the alt settings are re-installed, enable LTM and LPM. */ - usb_set_usb2_hardware_lpm(udev, 1); + usb_enable_usb2_hardware_lpm(udev); usb_unlocked_enable_lpm(udev); usb_enable_ltm(udev); usb_release_bos_descriptor(udev); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 833ddd228e3a..1fe3c5d3be5f 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1182,8 +1182,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) dev->actconfig->interface[i] = NULL; }
- if (dev->usb2_hw_lpm_enabled == 1) - usb_set_usb2_hardware_lpm(dev, 0); + usb_disable_usb2_hardware_lpm(dev); usb_unlocked_disable_lpm(dev); usb_disable_ltm(dev);
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index d930bfda4010..15c19863f7b3 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -508,7 +508,10 @@ static ssize_t usb2_hardware_lpm_store(struct device *dev,
if (!ret) { udev->usb2_hw_lpm_allowed = value; - ret = usb_set_usb2_hardware_lpm(udev, value); + if (value) + ret = usb_enable_usb2_hardware_lpm(udev); + else + ret = usb_disable_usb2_hardware_lpm(udev); }
usb_unlock_device(udev); diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index dc6949248823..1b5f346d93eb 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -89,7 +89,8 @@ extern int usb_remote_wakeup(struct usb_device *dev); extern int usb_runtime_suspend(struct device *dev); extern int usb_runtime_resume(struct device *dev); extern int usb_runtime_idle(struct device *dev); -extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable); +extern int usb_enable_usb2_hardware_lpm(struct usb_device *udev); +extern int usb_disable_usb2_hardware_lpm(struct usb_device *udev);
#else
@@ -109,7 +110,12 @@ static inline int usb_autoresume_device(struct usb_device *udev) return 0; }
-static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) +static inline int usb_enable_usb2_hardware_lpm(struct usb_device *udev) +{ + return 0; +} + +static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev) { return 0; } diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 50eeb74ddc0a..f77a9b3370b5 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -58,12 +58,18 @@ module_param_named(disable_hugepages, MODULE_PARM_DESC(disable_hugepages, "Disable VFIO IOMMU support for IOMMU hugepages.");
+static unsigned int dma_entry_limit __read_mostly = U16_MAX; +module_param_named(dma_entry_limit, dma_entry_limit, uint, 0644); +MODULE_PARM_DESC(dma_entry_limit, + "Maximum number of user DMA mappings per container (65535)."); + struct vfio_iommu { struct list_head domain_list; struct vfio_domain *external_domain; /* domain for external user */ struct mutex lock; struct rb_root dma_list; struct blocking_notifier_head notifier; + unsigned int dma_avail; bool v2; bool nesting; }; @@ -732,6 +738,7 @@ static void vfio_remove_dma(struct vfio_iommu *iommu, struct vfio_dma *dma) vfio_unlink_dma(iommu, dma); put_task_struct(dma->task); kfree(dma); + iommu->dma_avail++; }
static unsigned long vfio_pgsize_bitmap(struct vfio_iommu *iommu) @@ -1003,12 +1010,18 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, goto out_unlock; }
+ if (!iommu->dma_avail) { + ret = -ENOSPC; + goto out_unlock; + } + dma = kzalloc(sizeof(*dma), GFP_KERNEL); if (!dma) { ret = -ENOMEM; goto out_unlock; }
+ iommu->dma_avail--; dma->iova = iova; dma->vaddr = vaddr; dma->prot = prot; @@ -1504,6 +1517,7 @@ static void *vfio_iommu_type1_open(unsigned long arg)
INIT_LIST_HEAD(&iommu->domain_list); iommu->dma_list = RB_ROOT; + iommu->dma_avail = dma_entry_limit; mutex_init(&iommu->lock); BLOCKING_INIT_NOTIFIER_HEAD(&iommu->notifier);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 8a5266699b67..56e8fc896f6b 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1454,6 +1454,7 @@ void ceph_dentry_lru_del(struct dentry *dn) unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn) { struct ceph_inode_info *dci = ceph_inode(dir); + unsigned hash;
switch (dci->i_dir_layout.dl_dir_hash) { case 0: /* for backward compat */ @@ -1461,8 +1462,11 @@ unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn) return dn->d_name.hash;
default: - return ceph_str_hash(dci->i_dir_layout.dl_dir_hash, + spin_lock(&dn->d_lock); + hash = ceph_str_hash(dci->i_dir_layout.dl_dir_hash, dn->d_name.name, dn->d_name.len); + spin_unlock(&dn->d_lock); + return hash; } }
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index a48984dd6426..e1ded4bd6115 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1219,6 +1219,15 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap, list_add(&ci->i_prealloc_cap_flush->i_list, &to_remove); ci->i_prealloc_cap_flush = NULL; } + + if (drop && + ci->i_wrbuffer_ref_head == 0 && + ci->i_wr_ref == 0 && + ci->i_dirty_caps == 0 && + ci->i_flushing_caps == 0) { + ceph_put_snap_context(ci->i_head_snapc); + ci->i_head_snapc = NULL; + } } spin_unlock(&ci->i_ceph_lock); while (!list_empty(&to_remove)) { @@ -1863,10 +1872,39 @@ char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *base, return path; }
+/* Duplicate the dentry->d_name.name safely */ +static int clone_dentry_name(struct dentry *dentry, const char **ppath, + int *ppathlen) +{ + u32 len; + char *name; + +retry: + len = READ_ONCE(dentry->d_name.len); + name = kmalloc(len + 1, GFP_NOFS); + if (!name) + return -ENOMEM; + + spin_lock(&dentry->d_lock); + if (dentry->d_name.len != len) { + spin_unlock(&dentry->d_lock); + kfree(name); + goto retry; + } + memcpy(name, dentry->d_name.name, len); + spin_unlock(&dentry->d_lock); + + name[len] = '\0'; + *ppath = name; + *ppathlen = len; + return 0; +} + static int build_dentry_path(struct dentry *dentry, struct inode *dir, const char **ppath, int *ppathlen, u64 *pino, - int *pfreepath) + bool *pfreepath, bool parent_locked) { + int ret; char *path;
rcu_read_lock(); @@ -1875,8 +1913,15 @@ static int build_dentry_path(struct dentry *dentry, struct inode *dir, if (dir && ceph_snap(dir) == CEPH_NOSNAP) { *pino = ceph_ino(dir); rcu_read_unlock(); - *ppath = dentry->d_name.name; - *ppathlen = dentry->d_name.len; + if (parent_locked) { + *ppath = dentry->d_name.name; + *ppathlen = dentry->d_name.len; + } else { + ret = clone_dentry_name(dentry, ppath, ppathlen); + if (ret) + return ret; + *pfreepath = true; + } return 0; } rcu_read_unlock(); @@ -1884,13 +1929,13 @@ static int build_dentry_path(struct dentry *dentry, struct inode *dir, if (IS_ERR(path)) return PTR_ERR(path); *ppath = path; - *pfreepath = 1; + *pfreepath = true; return 0; }
static int build_inode_path(struct inode *inode, const char **ppath, int *ppathlen, u64 *pino, - int *pfreepath) + bool *pfreepath) { struct dentry *dentry; char *path; @@ -1906,7 +1951,7 @@ static int build_inode_path(struct inode *inode, if (IS_ERR(path)) return PTR_ERR(path); *ppath = path; - *pfreepath = 1; + *pfreepath = true; return 0; }
@@ -1917,7 +1962,7 @@ static int build_inode_path(struct inode *inode, static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, struct inode *rdiri, const char *rpath, u64 rino, const char **ppath, int *pathlen, - u64 *ino, int *freepath) + u64 *ino, bool *freepath, bool parent_locked) { int r = 0;
@@ -1927,7 +1972,7 @@ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, ceph_snap(rinode)); } else if (rdentry) { r = build_dentry_path(rdentry, rdiri, ppath, pathlen, ino, - freepath); + freepath, parent_locked); dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen, *ppath); } else if (rpath || rino) { @@ -1953,7 +1998,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, const char *path2 = NULL; u64 ino1 = 0, ino2 = 0; int pathlen1 = 0, pathlen2 = 0; - int freepath1 = 0, freepath2 = 0; + bool freepath1 = false, freepath2 = false; int len; u16 releases; void *p, *end; @@ -1961,16 +2006,19 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
ret = set_request_path_attr(req->r_inode, req->r_dentry, req->r_parent, req->r_path1, req->r_ino1.ino, - &path1, &pathlen1, &ino1, &freepath1); + &path1, &pathlen1, &ino1, &freepath1, + test_bit(CEPH_MDS_R_PARENT_LOCKED, + &req->r_req_flags)); if (ret < 0) { msg = ERR_PTR(ret); goto out; }
+ /* If r_old_dentry is set, then assume that its parent is locked */ ret = set_request_path_attr(NULL, req->r_old_dentry, req->r_old_dentry_dir, req->r_path2, req->r_ino2.ino, - &path2, &pathlen2, &ino2, &freepath2); + &path2, &pathlen2, &ino2, &freepath2, true); if (ret < 0) { msg = ERR_PTR(ret); goto out_free1; diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c index 9b6207c84b68..a7e763dac038 100644 --- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -568,7 +568,12 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci) old_snapc = NULL;
update_snapc: - if (ci->i_head_snapc) { + if (ci->i_wrbuffer_ref_head == 0 && + ci->i_wr_ref == 0 && + ci->i_dirty_caps == 0 && + ci->i_flushing_caps == 0) { + ci->i_head_snapc = NULL; + } else { ci->i_head_snapc = ceph_get_snap_context(new_snapc); dout(" new snapc is %p\n", new_snapc); } diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 6fd4a6a75234..e7192ee7a89c 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1730,6 +1730,10 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry, if (rc == 0 || rc != -EBUSY) goto do_rename_exit;
+ /* Don't fall back to using SMB on SMB 2+ mount */ + if (server->vals->protocol_id != 0) + goto do_rename_exit; + /* open-file renames don't work across directories */ if (to_dentry->d_parent != from_dentry->d_parent) goto do_rename_exit; diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 311761a6ef6d..6761e905cab0 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -828,6 +828,7 @@ int ext4_get_inode_usage(struct inode *inode, qsize_t *usage) bh = ext4_sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl, REQ_PRIO); if (IS_ERR(bh)) { ret = PTR_ERR(bh); + bh = NULL; goto out; }
@@ -2905,6 +2906,7 @@ int ext4_xattr_delete_inode(handle_t *handle, struct inode *inode, if (error == -EIO) EXT4_ERROR_INODE(inode, "block %llu read error", EXT4_I(inode)->i_file_acl); + bh = NULL; goto cleanup; } error = ext4_xattr_check_block(inode, bh); @@ -3061,6 +3063,7 @@ ext4_xattr_block_cache_find(struct inode *inode, if (IS_ERR(bh)) { if (PTR_ERR(bh) == -ENOMEM) return NULL; + bh = NULL; EXT4_ERROR_INODE(inode, "block %lu read error", (unsigned long)ce->e_value); } else if (ext4_xattr_cmp(header, BHDR(bh)) == 0) { diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 77d8d03344c8..f464f8d9060c 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2044,7 +2044,8 @@ static int nfs23_validate_mount_data(void *options, memcpy(sap, &data->addr, sizeof(data->addr)); args->nfs_server.addrlen = sizeof(data->addr); args->nfs_server.port = ntohs(data->addr.sin_port); - if (!nfs_verify_server_address(sap)) + if (sap->sa_family != AF_INET || + !nfs_verify_server_address(sap)) goto out_no_address;
if (!(data->flags & NFS_MOUNT_TCP)) diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 49b0a9e7ff18..80aeb19b176b 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -939,8 +939,9 @@ static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata) cb->cb_seq_status = 1; cb->cb_status = 0; if (minorversion) { - if (!nfsd41_cb_get_slot(clp, task)) + if (!cb->cb_holds_slot && !nfsd41_cb_get_slot(clp, task)) return; + cb->cb_holds_slot = true; } rpc_call_start(task); } @@ -967,6 +968,9 @@ static bool nfsd4_cb_sequence_done(struct rpc_task *task, struct nfsd4_callback return true; }
+ if (!cb->cb_holds_slot) + goto need_restart; + switch (cb->cb_seq_status) { case 0: /* @@ -1004,6 +1008,7 @@ static bool nfsd4_cb_sequence_done(struct rpc_task *task, struct nfsd4_callback cb->cb_seq_status); }
+ cb->cb_holds_slot = false; clear_bit(0, &clp->cl_cb_slot_busy); rpc_wake_up_next(&clp->cl_cb_waitq); dprintk("%s: freed slot, new seqid=%d\n", __func__, @@ -1211,6 +1216,7 @@ void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp, cb->cb_seq_status = 1; cb->cb_status = 0; cb->cb_need_restart = false; + cb->cb_holds_slot = false; }
void nfsd4_run_cb(struct nfsd4_callback *cb) diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 86aa92d200e1..133d8bf62a5c 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -69,6 +69,7 @@ struct nfsd4_callback { int cb_seq_status; int cb_status; bool cb_need_restart; + bool cb_holds_slot; };
struct nfsd4_callback_ops { diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 8d5422bb9c1a..555698ddb943 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1620,9 +1620,11 @@ static void drop_sysctl_table(struct ctl_table_header *header) if (--header->nreg) return;
- if (parent) + if (parent) { put_links(header); - start_unregistering(header); + start_unregistering(header); + } + if (!--header->count) kfree_rcu(header, rcu);
diff --git a/fs/splice.c b/fs/splice.c index 00d2f142dcf9..a598d444abe1 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -332,8 +332,8 @@ const struct pipe_buf_operations default_pipe_buf_ops = { .get = generic_pipe_buf_get, };
-static int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe, - struct pipe_buffer *buf) +int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe, + struct pipe_buffer *buf) { return 1; } diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index befdcd304b3d..2dcf6e81b2e2 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -182,6 +182,7 @@ void free_pipe_info(struct pipe_inode_info *); void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); +int generic_pipe_buf_nosteal(struct pipe_inode_info *, struct pipe_buffer *); void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *); void pipe_buf_mark_unmergeable(struct pipe_buffer *buf);
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index b2589c7e9439..22770168bff8 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -217,7 +217,6 @@ static void task_non_contending(struct task_struct *p) if (dl_se->dl_runtime == 0) return;
- WARN_ON(hrtimer_active(&dl_se->inactive_timer)); WARN_ON(dl_se->dl_non_contending);
zerolag_time = dl_se->deadline - @@ -234,7 +233,7 @@ static void task_non_contending(struct task_struct *p) * If the "0-lag time" already passed, decrease the active * utilization now, instead of starting a timer */ - if (zerolag_time < 0) { + if ((zerolag_time < 0) || hrtimer_active(&dl_se->inactive_timer)) { if (dl_task(p)) sub_running_bw(dl_se->dl_bw, dl_rq); if (!dl_task(p) || p->state == TASK_DEAD) { diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a5d163903835..af7de1f9906c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2026,6 +2026,10 @@ static u64 numa_get_avg_runtime(struct task_struct *p, u64 *period) if (p->last_task_numa_placement) { delta = runtime - p->last_sum_exec_runtime; *period = now - p->last_task_numa_placement; + + /* Avoid time going backwards, prevent potential divide error: */ + if (unlikely((s64)*period < 0)) + *period = 0; } else { delta = p->se.avg.load_sum / p->se.load.weight; *period = LOAD_AVG_MAX; diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 5f7f4f07499f..8123a8b53c54 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -700,7 +700,7 @@ u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu)
preempt_disable_notrace(); time = rb_time_stamp(buffer); - preempt_enable_no_resched_notrace(); + preempt_enable_notrace();
return time; } diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ffddb5ac255c..591be15404a1 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -494,8 +494,10 @@ int trace_pid_write(struct trace_pid_list *filtered_pids, * not modified. */ pid_list = kmalloc(sizeof(*pid_list), GFP_KERNEL); - if (!pid_list) + if (!pid_list) { + trace_parser_put(&parser); return -ENOMEM; + }
pid_list->pid_max = READ_ONCE(pid_max);
@@ -505,6 +507,7 @@ int trace_pid_write(struct trace_pid_list *filtered_pids,
pid_list->pids = vzalloc((pid_list->pid_max + 7) >> 3); if (!pid_list->pids) { + trace_parser_put(&parser); kfree(pid_list); return -ENOMEM; } @@ -6716,19 +6719,23 @@ struct buffer_ref { struct ring_buffer *buffer; void *page; int cpu; - int ref; + refcount_t refcount; };
+static void buffer_ref_release(struct buffer_ref *ref) +{ + if (!refcount_dec_and_test(&ref->refcount)) + return; + ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page); + kfree(ref); +} + static void buffer_pipe_buf_release(struct pipe_inode_info *pipe, struct pipe_buffer *buf) { struct buffer_ref *ref = (struct buffer_ref *)buf->private;
- if (--ref->ref) - return; - - ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page); - kfree(ref); + buffer_ref_release(ref); buf->private = 0; }
@@ -6737,7 +6744,7 @@ static void buffer_pipe_buf_get(struct pipe_inode_info *pipe, { struct buffer_ref *ref = (struct buffer_ref *)buf->private;
- ref->ref++; + refcount_inc(&ref->refcount); }
/* Pipe buffer operations for a buffer. */ @@ -6745,7 +6752,7 @@ static const struct pipe_buf_operations buffer_pipe_buf_ops = { .can_merge = 0, .confirm = generic_pipe_buf_confirm, .release = buffer_pipe_buf_release, - .steal = generic_pipe_buf_steal, + .steal = generic_pipe_buf_nosteal, .get = buffer_pipe_buf_get, };
@@ -6758,11 +6765,7 @@ static void buffer_spd_release(struct splice_pipe_desc *spd, unsigned int i) struct buffer_ref *ref = (struct buffer_ref *)spd->partial[i].private;
- if (--ref->ref) - return; - - ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page); - kfree(ref); + buffer_ref_release(ref); spd->partial[i].private = 0; }
@@ -6817,7 +6820,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, break; }
- ref->ref = 1; + refcount_set(&ref->refcount, 1); ref->buffer = iter->trace_buffer->buffer; ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file); if (IS_ERR(ref->page)) { diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 62d0e25c054c..131d5871f8c9 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1884,6 +1884,7 @@ config TEST_KMOD depends on m depends on BLOCK && (64BIT || LBDAF) # for XFS, BTRFS depends on NETDEVICES && NET_CORE && INET # for TUN + depends on BLOCK select TEST_LKM select XFS_FS select TUN diff --git a/mm/memory.c b/mm/memory.c index fb9f7737c1ff..f99b64ca1303 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1804,10 +1804,15 @@ static int insert_pfn(struct vm_area_struct *vma, unsigned long addr, * in may not match the PFN we have mapped if the * mapped PFN is a writeable COW page. In the mkwrite * case we are creating a writable PTE for a shared - * mapping and we expect the PFNs to match. + * mapping and we expect the PFNs to match. If they + * don't match, we are likely racing with block + * allocation and mapping invalidation so just skip the + * update. */ - if (WARN_ON_ONCE(pte_pfn(*pte) != pfn_t_to_pfn(pfn))) + if (pte_pfn(*pte) != pfn_t_to_pfn(pfn)) { + WARN_ON_ONCE(!is_zero_pfn(pte_pfn(*pte))); goto out_unlock; + } entry = *pte; goto out_mkwrite; } else diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 38b3309edba8..b967bd51bf1f 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -2030,7 +2030,8 @@ static int ebt_size_mwt(struct compat_ebt_entry_mwt *match32, if (match_kern) match_kern->match_size = ret;
- if (WARN_ON(type == EBT_COMPAT_TARGET && size_left)) + /* rule should have no remaining data after target */ + if (type == EBT_COMPAT_TARGET && size_left) return -EINVAL;
match32 = (struct compat_ebt_entry_mwt *) buf; diff --git a/net/ipv4/route.c b/net/ipv4/route.c index c64f062d6323..6a7e187dd0a9 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1192,25 +1192,39 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie) return dst; }
-static void ipv4_link_failure(struct sk_buff *skb) +static void ipv4_send_dest_unreach(struct sk_buff *skb) { struct ip_options opt; - struct rtable *rt; int res;
/* Recompile ip options since IPCB may not be valid anymore. + * Also check we have a reasonable ipv4 header. */ - memset(&opt, 0, sizeof(opt)); - opt.optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr); + if (!pskb_network_may_pull(skb, sizeof(struct iphdr)) || + ip_hdr(skb)->version != 4 || ip_hdr(skb)->ihl < 5) + return;
- rcu_read_lock(); - res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL); - rcu_read_unlock(); + memset(&opt, 0, sizeof(opt)); + if (ip_hdr(skb)->ihl > 5) { + if (!pskb_network_may_pull(skb, ip_hdr(skb)->ihl * 4)) + return; + opt.optlen = ip_hdr(skb)->ihl * 4 - sizeof(struct iphdr);
- if (res) - return; + rcu_read_lock(); + res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL); + rcu_read_unlock();
+ if (res) + return; + } __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt); +} + +static void ipv4_link_failure(struct sk_buff *skb) +{ + struct rtable *rt; + + ipv4_send_dest_unreach(skb);
rt = skb_rtable(skb); if (rt) diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index d82e8344fc54..e8caab8e2f5c 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -45,6 +45,7 @@ static int tcp_syn_retries_min = 1; static int tcp_syn_retries_max = MAX_TCP_SYNCNT; static int ip_ping_group_range_min[] = { 0, 0 }; static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX }; +static int one_day_secs = 24 * 3600;
/* obsolete */ static int sysctl_tcp_low_latency __read_mostly; @@ -552,7 +553,9 @@ static struct ctl_table ipv4_table[] = { .data = &sysctl_tcp_min_rtt_wlen, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &one_day_secs }, { .procname = "tcp_low_latency", diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 56dd5ce6274f..6d7608b88f66 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -889,12 +889,13 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest, { struct ip_vs_dest *dest; unsigned int atype, i; - int ret = 0;
EnterFunction(2);
#ifdef CONFIG_IP_VS_IPV6 if (udest->af == AF_INET6) { + int ret; + atype = ipv6_addr_type(&udest->addr.in6); if ((!(atype & IPV6_ADDR_UNICAST) || atype & IPV6_ADDR_LINKLOCAL) && diff --git a/net/rds/ib_fmr.c b/net/rds/ib_fmr.c index 86ef907067bb..353b59d3bd44 100644 --- a/net/rds/ib_fmr.c +++ b/net/rds/ib_fmr.c @@ -44,6 +44,17 @@ struct rds_ib_mr *rds_ib_alloc_fmr(struct rds_ib_device *rds_ibdev, int npages) else pool = rds_ibdev->mr_1m_pool;
+ if (atomic_read(&pool->dirty_count) >= pool->max_items / 10) + queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10); + + /* Switch pools if one of the pool is reaching upper limit */ + if (atomic_read(&pool->dirty_count) >= pool->max_items * 9 / 10) { + if (pool->pool_type == RDS_IB_MR_8K_POOL) + pool = rds_ibdev->mr_1m_pool; + else + pool = rds_ibdev->mr_8k_pool; + } + ibmr = rds_ib_try_reuse_ibmr(pool); if (ibmr) return ibmr; diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c index 9a3c54e659e9..fe5d2e8a95d9 100644 --- a/net/rds/ib_rdma.c +++ b/net/rds/ib_rdma.c @@ -442,9 +442,6 @@ struct rds_ib_mr *rds_ib_try_reuse_ibmr(struct rds_ib_mr_pool *pool) struct rds_ib_mr *ibmr = NULL; int iter = 0;
- if (atomic_read(&pool->dirty_count) >= pool->max_items_soft / 10) - queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10); - while (1) { ibmr = rds_ib_reuse_mr(pool); if (ibmr) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 4a9729257023..6a5c4992cf61 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -318,9 +318,11 @@ void rose_destroy_socket(struct sock *); /* * Handler for deferred kills. */ -static void rose_destroy_timer(unsigned long data) +static void rose_destroy_timer(struct timer_list *t) { - rose_destroy_socket((struct sock *)data); + struct sock *sk = from_timer(sk, t, sk_timer); + + rose_destroy_socket(sk); }
/* @@ -353,8 +355,7 @@ void rose_destroy_socket(struct sock *sk)
if (sk_has_allocations(sk)) { /* Defer: outstanding buffers */ - setup_timer(&sk->sk_timer, rose_destroy_timer, - (unsigned long)sk); + timer_setup(&sk->sk_timer, rose_destroy_timer, 0); sk->sk_timer.expires = jiffies + 10 * HZ; add_timer(&sk->sk_timer); } else @@ -538,8 +539,8 @@ static int rose_create(struct net *net, struct socket *sock, int protocol, sock->ops = &rose_proto_ops; sk->sk_protocol = protocol;
- init_timer(&rose->timer); - init_timer(&rose->idletimer); + timer_setup(&rose->timer, NULL, 0); + timer_setup(&rose->idletimer, NULL, 0);
rose->t1 = msecs_to_jiffies(sysctl_rose_call_request_timeout); rose->t2 = msecs_to_jiffies(sysctl_rose_reset_request_timeout); @@ -582,8 +583,8 @@ static struct sock *rose_make_new(struct sock *osk) sk->sk_state = TCP_ESTABLISHED; sock_copy_flags(sk, osk);
- init_timer(&rose->timer); - init_timer(&rose->idletimer); + timer_setup(&rose->timer, NULL, 0); + timer_setup(&rose->idletimer, NULL, 0);
orose = rose_sk(osk); rose->t1 = orose->t1; diff --git a/net/rose/rose_link.c b/net/rose/rose_link.c index c76638cc2cd5..cda4c6678ef1 100644 --- a/net/rose/rose_link.c +++ b/net/rose/rose_link.c @@ -27,8 +27,8 @@ #include <linux/interrupt.h> #include <net/rose.h>
-static void rose_ftimer_expiry(unsigned long); -static void rose_t0timer_expiry(unsigned long); +static void rose_ftimer_expiry(struct timer_list *); +static void rose_t0timer_expiry(struct timer_list *);
static void rose_transmit_restart_confirmation(struct rose_neigh *neigh); static void rose_transmit_restart_request(struct rose_neigh *neigh); @@ -37,8 +37,7 @@ void rose_start_ftimer(struct rose_neigh *neigh) { del_timer(&neigh->ftimer);
- neigh->ftimer.data = (unsigned long)neigh; - neigh->ftimer.function = &rose_ftimer_expiry; + neigh->ftimer.function = (TIMER_FUNC_TYPE)rose_ftimer_expiry; neigh->ftimer.expires = jiffies + msecs_to_jiffies(sysctl_rose_link_fail_timeout);
@@ -49,8 +48,7 @@ static void rose_start_t0timer(struct rose_neigh *neigh) { del_timer(&neigh->t0timer);
- neigh->t0timer.data = (unsigned long)neigh; - neigh->t0timer.function = &rose_t0timer_expiry; + neigh->t0timer.function = (TIMER_FUNC_TYPE)rose_t0timer_expiry; neigh->t0timer.expires = jiffies + msecs_to_jiffies(sysctl_rose_restart_request_timeout);
@@ -77,13 +75,13 @@ static int rose_t0timer_running(struct rose_neigh *neigh) return timer_pending(&neigh->t0timer); }
-static void rose_ftimer_expiry(unsigned long param) +static void rose_ftimer_expiry(struct timer_list *t) { }
-static void rose_t0timer_expiry(unsigned long param) +static void rose_t0timer_expiry(struct timer_list *t) { - struct rose_neigh *neigh = (struct rose_neigh *)param; + struct rose_neigh *neigh = from_timer(neigh, t, t0timer);
rose_transmit_restart_request(neigh);
diff --git a/net/rose/rose_loopback.c b/net/rose/rose_loopback.c index 344456206b70..094a6621f8e8 100644 --- a/net/rose/rose_loopback.c +++ b/net/rose/rose_loopback.c @@ -16,15 +16,17 @@ #include <linux/init.h>
static struct sk_buff_head loopback_queue; +#define ROSE_LOOPBACK_LIMIT 1000 static struct timer_list loopback_timer;
static void rose_set_loopback_timer(void); +static void rose_loopback_timer(struct timer_list *unused);
void rose_loopback_init(void) { skb_queue_head_init(&loopback_queue);
- init_timer(&loopback_timer); + timer_setup(&loopback_timer, rose_loopback_timer, 0); }
static int rose_loopback_running(void) @@ -34,36 +36,30 @@ static int rose_loopback_running(void)
int rose_loopback_queue(struct sk_buff *skb, struct rose_neigh *neigh) { - struct sk_buff *skbn; + struct sk_buff *skbn = NULL;
- skbn = skb_clone(skb, GFP_ATOMIC); + if (skb_queue_len(&loopback_queue) < ROSE_LOOPBACK_LIMIT) + skbn = skb_clone(skb, GFP_ATOMIC);
- kfree_skb(skb); - - if (skbn != NULL) { + if (skbn) { + consume_skb(skb); skb_queue_tail(&loopback_queue, skbn);
if (!rose_loopback_running()) rose_set_loopback_timer(); + } else { + kfree_skb(skb); }
return 1; }
-static void rose_loopback_timer(unsigned long); - static void rose_set_loopback_timer(void) { - del_timer(&loopback_timer); - - loopback_timer.data = 0; - loopback_timer.function = &rose_loopback_timer; - loopback_timer.expires = jiffies + 10; - - add_timer(&loopback_timer); + mod_timer(&loopback_timer, jiffies + 10); }
-static void rose_loopback_timer(unsigned long param) +static void rose_loopback_timer(struct timer_list *unused) { struct sk_buff *skb; struct net_device *dev; @@ -71,8 +67,12 @@ static void rose_loopback_timer(unsigned long param) struct sock *sk; unsigned short frametype; unsigned int lci_i, lci_o; + int count;
- while ((skb = skb_dequeue(&loopback_queue)) != NULL) { + for (count = 0; count < ROSE_LOOPBACK_LIMIT; count++) { + skb = skb_dequeue(&loopback_queue); + if (!skb) + return; if (skb->len < ROSE_MIN_LEN) { kfree_skb(skb); continue; @@ -109,6 +109,8 @@ static void rose_loopback_timer(unsigned long param) kfree_skb(skb); } } + if (!skb_queue_empty(&loopback_queue)) + mod_timer(&loopback_timer, jiffies + 1); }
void __exit rose_loopback_clear(void) diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c index 2741abec7ee7..d94d6110bb1c 100644 --- a/net/rose/rose_route.c +++ b/net/rose/rose_route.c @@ -104,8 +104,8 @@ static int __must_check rose_add_node(struct rose_route_struct *rose_route,
skb_queue_head_init(&rose_neigh->queue);
- init_timer(&rose_neigh->ftimer); - init_timer(&rose_neigh->t0timer); + timer_setup(&rose_neigh->ftimer, NULL, 0); + timer_setup(&rose_neigh->t0timer, NULL, 0);
if (rose_route->ndigis != 0) { rose_neigh->digipeat = @@ -390,8 +390,8 @@ void rose_add_loopback_neigh(void)
skb_queue_head_init(&sn->queue);
- init_timer(&sn->ftimer); - init_timer(&sn->t0timer); + timer_setup(&sn->ftimer, NULL, 0); + timer_setup(&sn->t0timer, NULL, 0);
spin_lock_bh(&rose_neigh_list_lock); sn->next = rose_neigh_list; diff --git a/net/rose/rose_timer.c b/net/rose/rose_timer.c index bc5469d6d9cb..3b89d66f15bb 100644 --- a/net/rose/rose_timer.c +++ b/net/rose/rose_timer.c @@ -29,8 +29,8 @@ #include <net/rose.h>
static void rose_heartbeat_expiry(unsigned long); -static void rose_timer_expiry(unsigned long); -static void rose_idletimer_expiry(unsigned long); +static void rose_timer_expiry(struct timer_list *); +static void rose_idletimer_expiry(struct timer_list *);
void rose_start_heartbeat(struct sock *sk) { @@ -49,8 +49,7 @@ void rose_start_t1timer(struct sock *sk)
del_timer(&rose->timer);
- rose->timer.data = (unsigned long)sk; - rose->timer.function = &rose_timer_expiry; + rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry; rose->timer.expires = jiffies + rose->t1;
add_timer(&rose->timer); @@ -62,8 +61,7 @@ void rose_start_t2timer(struct sock *sk)
del_timer(&rose->timer);
- rose->timer.data = (unsigned long)sk; - rose->timer.function = &rose_timer_expiry; + rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry; rose->timer.expires = jiffies + rose->t2;
add_timer(&rose->timer); @@ -75,8 +73,7 @@ void rose_start_t3timer(struct sock *sk)
del_timer(&rose->timer);
- rose->timer.data = (unsigned long)sk; - rose->timer.function = &rose_timer_expiry; + rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry; rose->timer.expires = jiffies + rose->t3;
add_timer(&rose->timer); @@ -88,8 +85,7 @@ void rose_start_hbtimer(struct sock *sk)
del_timer(&rose->timer);
- rose->timer.data = (unsigned long)sk; - rose->timer.function = &rose_timer_expiry; + rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry; rose->timer.expires = jiffies + rose->hb;
add_timer(&rose->timer); @@ -102,8 +98,7 @@ void rose_start_idletimer(struct sock *sk) del_timer(&rose->idletimer);
if (rose->idle > 0) { - rose->idletimer.data = (unsigned long)sk; - rose->idletimer.function = &rose_idletimer_expiry; + rose->idletimer.function = (TIMER_FUNC_TYPE)rose_idletimer_expiry; rose->idletimer.expires = jiffies + rose->idle;
add_timer(&rose->idletimer); @@ -163,10 +158,10 @@ static void rose_heartbeat_expiry(unsigned long param) bh_unlock_sock(sk); }
-static void rose_timer_expiry(unsigned long param) +static void rose_timer_expiry(struct timer_list *t) { - struct sock *sk = (struct sock *)param; - struct rose_sock *rose = rose_sk(sk); + struct rose_sock *rose = from_timer(rose, t, timer); + struct sock *sk = &rose->sock;
bh_lock_sock(sk); switch (rose->state) { @@ -192,9 +187,10 @@ static void rose_timer_expiry(unsigned long param) bh_unlock_sock(sk); }
-static void rose_idletimer_expiry(unsigned long param) +static void rose_idletimer_expiry(struct timer_list *t) { - struct sock *sk = (struct sock *)param; + struct rose_sock *rose = from_timer(rose, t, idletimer); + struct sock *sk = &rose->sock;
bh_lock_sock(sk); rose_clear_queues(sk); diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index f2cf4edf219b..475b453dc7ae 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -54,6 +54,7 @@ static void cache_init(struct cache_head *h, struct cache_detail *detail) h->last_refresh = now; }
+static inline int cache_is_valid(struct cache_head *h); static void cache_fresh_locked(struct cache_head *head, time_t expiry, struct cache_detail *detail); static void cache_fresh_unlocked(struct cache_head *head, @@ -100,6 +101,8 @@ struct cache_head *sunrpc_cache_lookup(struct cache_detail *detail, if (cache_is_expired(detail, tmp)) { hlist_del_init(&tmp->cache_list); detail->entries --; + if (cache_is_valid(tmp) == -EAGAIN) + set_bit(CACHE_NEGATIVE, &tmp->flags); cache_fresh_locked(tmp, 0, detail); freeme = tmp; break; diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index 73895daf8943..aa75bc8b158f 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -262,8 +262,14 @@ static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, if (msg->rep_type) tipc_tlv_init(msg->rep, msg->rep_type);
- if (cmd->header) - (*cmd->header)(msg); + if (cmd->header) { + err = (*cmd->header)(msg); + if (err) { + kfree_skb(msg->rep); + msg->rep = NULL; + return err; + } + }
arg = nlmsg_new(0, GFP_KERNEL); if (!arg) { @@ -388,7 +394,12 @@ static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, if (!bearer) return -EMSGSIZE;
- len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_BEARER_NAME); + len = TLV_GET_DATA_LEN(msg->req); + len -= offsetof(struct tipc_bearer_config, name); + if (len <= 0) + return -EINVAL; + + len = min_t(int, len, TIPC_MAX_BEARER_NAME); if (!string_is_valid(b->name, len)) return -EINVAL;
@@ -757,7 +768,12 @@ static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd,
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
- len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME); + len = TLV_GET_DATA_LEN(msg->req); + len -= offsetof(struct tipc_link_config, name); + if (len <= 0) + return -EINVAL; + + len = min_t(int, len, TIPC_MAX_LINK_NAME); if (!string_is_valid(lc->name, len)) return -EINVAL;
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index edba7ab97563..40a8731c663b 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -662,6 +662,8 @@ static int virtio_transport_reset(struct vsock_sock *vsk, */ static int virtio_transport_reset_no_sock(struct virtio_vsock_pkt *pkt) { + const struct virtio_transport *t; + struct virtio_vsock_pkt *reply; struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_RST, .type = le16_to_cpu(pkt->hdr.type), @@ -672,15 +674,21 @@ static int virtio_transport_reset_no_sock(struct virtio_vsock_pkt *pkt) if (le16_to_cpu(pkt->hdr.op) == VIRTIO_VSOCK_OP_RST) return 0;
- pkt = virtio_transport_alloc_pkt(&info, 0, - le64_to_cpu(pkt->hdr.dst_cid), - le32_to_cpu(pkt->hdr.dst_port), - le64_to_cpu(pkt->hdr.src_cid), - le32_to_cpu(pkt->hdr.src_port)); - if (!pkt) + reply = virtio_transport_alloc_pkt(&info, 0, + le64_to_cpu(pkt->hdr.dst_cid), + le32_to_cpu(pkt->hdr.dst_port), + le64_to_cpu(pkt->hdr.src_cid), + le32_to_cpu(pkt->hdr.src_port)); + if (!reply) return -ENOMEM;
- return virtio_transport_get_ops()->send_pkt(pkt); + t = virtio_transport_get_ops(); + if (!t) { + virtio_transport_free_pkt(reply); + return -ENOTCONN; + } + + return t->send_pkt(reply); }
static void virtio_transport_wait_close(struct sock *sk, long timeout) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index a0ad87e869f9..a33fa1a91873 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -165,9 +165,7 @@ cc-ldoption = $(call try-run,\
# ld-option # Usage: LDFLAGS += $(call ld-option, -X) -ld-option = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -x c /dev/null -c -o "$$TMPO"; \ - $(LD) $(LDFLAGS) $(1) "$$TMPO" -o "$$TMP",$(1),$(2)) +ld-option = $(call try-run, $(LD) $(LDFLAGS) $(1) -v,$(1),$(2))
# ar-option # Usage: KBUILD_ARFLAGS := $(call ar-option,D)