commit: eeb900881e025ab32608757f38b6e88714b6b229 Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Thu May 2 10:14:31 2019 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Thu May 2 10:14:31 2019 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=eeb90088
Linux patch 4.14.115 Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> 0000_README | 4 + 1114_linux-4.14.115.patch | 2061 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 2065 insertions(+) diff --git a/0000_README b/0000_README index 10dfc5f..937317e 100644 --- a/0000_README +++ b/0000_README @@ -499,6 +499,10 @@ Patch: 1113_4.14.114.patch From: http://www.kernel.org Desc: Linux 4.14.114 +Patch: 1114_4.14.115.patch +From: http://www.kernel.org +Desc: Linux 4.14.115 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1114_linux-4.14.115.patch b/1114_linux-4.14.115.patch new file mode 100644 index 0000000..5ba140e --- /dev/null +++ b/1114_linux-4.14.115.patch @@ -0,0 +1,2061 @@ +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 @@ retry: + 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 @@ retry: + 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 @@ out_fail: + 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 @@ retry: + 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)
