diff --git a/.mailmap b/.mailmap
index 48de711542961702a6321410d1a59e20f1fde7b8..399322897938d681ec9ca939ee94e62df59e22d3 100644
--- a/.mailmap
+++ b/.mailmap
@@ -202,6 +202,7 @@ Elliot Berman <quic_eberman@quicinc.com> <eberman@codeaurora.org>
Enric Balletbo i Serra <eballetbo@kernel.org> <enric.balletbo@collabora.com>
Enric Balletbo i Serra <eballetbo@kernel.org> <eballetbo@iseebcn.com>
Erik Kaneda <erik.kaneda@intel.com> <erik.schmauss@intel.com>
+Ethan Carter Edwards <ethan@ethancedwards.com> Ethan Edwards <ethancarteredwards@gmail.com>
Eugen Hristev <eugen.hristev@linaro.org> <eugen.hristev@microchip.com>
Eugen Hristev <eugen.hristev@linaro.org> <eugen.hristev@collabora.com>
Evgeniy Polyakov <johnpol@2ka.mipt.ru>
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 213206ebdd58107404bdbe9f37cd0f6ff97d4cf9..7799f4d16ce9993264489b93050cab1002f952b0 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1065,26 +1065,39 @@ int ocfs2_find_entry(const char *name, int namelen,
{
struct buffer_head *bh;
struct ocfs2_dir_entry *res_dir = NULL;
+ int ret = 0;
if (ocfs2_dir_indexed(dir))
return ocfs2_find_entry_dx(name, namelen, dir, lookup);
+ if (unlikely(i_size_read(dir) <= 0)) {
+ ret = -EFSCORRUPTED;
+ mlog_errno(ret);
+ goto out;
+ }
/*
* The unindexed dir code only uses part of the lookup
* structure, so there's no reason to push it down further
* than this.
*/
- if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+ if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
+ if (unlikely(i_size_read(dir) > dir->i_sb->s_blocksize)) {
+ ret = -EFSCORRUPTED;
+ mlog_errno(ret);
+ goto out;
+ }
bh = ocfs2_find_entry_id(name, namelen, dir, &res_dir);
- else
+ } else {
bh = ocfs2_find_entry_el(name, namelen, dir, &res_dir);
+ }
if (bh == NULL)
return -ENOENT;
lookup->dl_leaf_bh = bh;
lookup->dl_entry = res_dir;
- return 0;
+out:
+ return ret;
}
/*
@@ -2010,6 +2023,7 @@ int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name,
*
* Return 0 if the name does not exist
* Return -EEXIST if the directory contains the name
+ * Return -EFSCORRUPTED if found corruption
*
* Callers should have i_rwsem + a cluster lock on dir
*/
@@ -2023,9 +2037,12 @@ int ocfs2_check_dir_for_entry(struct inode *dir,
trace_ocfs2_check_dir_for_entry(
(unsigned long long)OCFS2_I(dir)->ip_blkno, namelen, name);
- if (ocfs2_find_entry(name, namelen, dir, &lookup) == 0) {
+ ret = ocfs2_find_entry(name, namelen, dir, &lookup);
+ if (ret == 0) {
ret = -EEXIST;
mlog_errno(ret);
+ } else if (ret == -ENOENT) {
+ ret = 0;
}
ocfs2_free_dir_lookup_result(&lookup);
diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c
index 7dcebf118a3e64ac50a0ab9071623daca9a8aee8..65e706e1bc199c2dec97ffd86e2e147eb9692ba9 100644
--- a/lib/alloc_tag.c
+++ b/lib/alloc_tag.c
@@ -195,6 +195,9 @@ void pgalloc_tag_swap(struct folio *new, struct folio *old)
union codetag_ref ref_old, ref_new;
struct alloc_tag *tag_old, *tag_new;
+ if (!mem_alloc_profiling_enabled())
+ return;
+
tag_old = pgalloc_tag_get(&old->page);
if (!tag_old)
return;
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 653dbb1ff05c0769fd770e3142ce672612fb2a5d..bad1e130eda8a8b73973a32258a6b5cfddd17215 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2422,7 +2422,7 @@ skip:
VM_BUG_ON(khugepaged_scan.address < hstart ||
khugepaged_scan.address + HPAGE_PMD_SIZE >
hend);
- if (IS_ENABLED(CONFIG_SHMEM) && vma->vm_file) {
+ if (IS_ENABLED(CONFIG_SHMEM) && !vma_is_anonymous(vma)) {
struct file *file = get_file(vma->vm_file);
pgoff_t pgoff = linear_page_index(vma,
khugepaged_scan.address);
@@ -2768,7 +2768,7 @@ int madvise_collapse(struct vm_area_struct *vma, struct vm_area_struct **prev,
mmap_assert_locked(mm);
memset(cc->node_load, 0, sizeof(cc->node_load));
nodes_clear(cc->alloc_nmask);
- if (IS_ENABLED(CONFIG_SHMEM) && vma->vm_file) {
+ if (IS_ENABLED(CONFIG_SHMEM) && !vma_is_anonymous(vma)) {
struct file *file = get_file(vma->vm_file);
pgoff_t pgoff = linear_page_index(vma, addr);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index cae7b93864c23e50d9c89b9f579ac5bb6143a3a7..01eab25edf8934eb7828adc00a75f754fe4b67cf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5692,10 +5692,13 @@ __meminit void zone_pcp_init(struct zone *zone)
zone->present_pages, zone_batchsize(zone));
}
+static void setup_per_zone_lowmem_reserve(void);
+
void adjust_managed_page_count(struct page *page, long count)
{
atomic_long_add(count, &page_zone(page)->managed_pages);
totalram_pages_add(count);
+ setup_per_zone_lowmem_reserve();
}
EXPORT_SYMBOL(adjust_managed_page_count);
diff --git a/mm/shmem.c b/mm/shmem.c
index ac58d4fb2e6f5a617c85cd49de99e3c5f97209e6..fdb5afa1cfe9a6d402758880baa18c8aaccaa5fb 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4368,7 +4368,7 @@ static int shmem_parse_opt_casefold(struct fs_context *fc, struct fs_parameter *
bool latest_version)
{
struct shmem_options *ctx = fc->fs_private;
- unsigned int version = UTF8_LATEST;
+ int version = UTF8_LATEST;
struct unicode_map *encoding;
char *version_str = param->string + 5;
diff --git a/mm/zswap.c b/mm/zswap.c
index 30f5a27a686203ffa3de0a68d2d94c45eb67bb95..b84c20d889b1b58497dad723c2e28bcf05493ce8 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -820,15 +820,15 @@ static int zswap_cpu_comp_prepare(unsigned int cpu, struct hlist_node *node)
{
struct zswap_pool *pool = hlist_entry(node, struct zswap_pool, node);
struct crypto_acomp_ctx *acomp_ctx = per_cpu_ptr(pool->acomp_ctx, cpu);
- struct crypto_acomp *acomp;
- struct acomp_req *req;
+ struct crypto_acomp *acomp = NULL;
+ struct acomp_req *req = NULL;
+ u8 *buffer = NULL;
int ret;
- mutex_lock(&acomp_ctx->mutex);
- acomp_ctx->buffer = kmalloc_node(PAGE_SIZE * 2, GFP_KERNEL, cpu_to_node(cpu));
- if (!acomp_ctx->buffer) {
+ buffer = kmalloc_node(PAGE_SIZE * 2, GFP_KERNEL, cpu_to_node(cpu));
+ if (!buffer) {
ret = -ENOMEM;
- goto buffer_fail;
+ goto fail;
}
acomp = crypto_alloc_acomp_node(pool->tfm_name, 0, 0, cpu_to_node(cpu));
@@ -836,21 +836,25 @@ static int zswap_cpu_comp_prepare(unsigned int cpu, struct hlist_node *node)
pr_err("could not alloc crypto acomp %s : %ld\n",
pool->tfm_name, PTR_ERR(acomp));
ret = PTR_ERR(acomp);
- goto acomp_fail;
+ goto fail;
}
- acomp_ctx->acomp = acomp;
- acomp_ctx->is_sleepable = acomp_is_async(acomp);
- req = acomp_request_alloc(acomp_ctx->acomp);
+ req = acomp_request_alloc(acomp);
if (!req) {
pr_err("could not alloc crypto acomp_request %s\n",
pool->tfm_name);
ret = -ENOMEM;
- goto req_fail;
+ goto fail;
}
- acomp_ctx->req = req;
+ /*
+ * Only hold the mutex after completing allocations, otherwise we may
+ * recurse into zswap through reclaim and attempt to hold the mutex
+ * again resulting in a deadlock.
+ */
+ mutex_lock(&acomp_ctx->mutex);
crypto_init_wait(&acomp_ctx->wait);
+
/*
* if the backend of acomp is async zip, crypto_req_done() will wakeup
* crypto_wait_req(); if the backend of acomp is scomp, the callback
@@ -859,15 +863,17 @@ static int zswap_cpu_comp_prepare(unsigned int cpu, struct hlist_node *node)
acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_req_done, &acomp_ctx->wait);
+ acomp_ctx->buffer = buffer;
+ acomp_ctx->acomp = acomp;
+ acomp_ctx->is_sleepable = acomp_is_async(acomp);
+ acomp_ctx->req = req;
mutex_unlock(&acomp_ctx->mutex);
return 0;
-req_fail:
- crypto_free_acomp(acomp_ctx->acomp);
-acomp_fail:
- kfree(acomp_ctx->buffer);
-buffer_fail:
- mutex_unlock(&acomp_ctx->mutex);
+fail:
+ if (acomp)
+ crypto_free_acomp(acomp);
+ kfree(buffer);
return ret;
}