summaryrefslogtreecommitdiff
path: root/fs/f2fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/acl.c18
-rw-r--r--fs/f2fs/checkpoint.c14
-rw-r--r--fs/f2fs/data.c16
-rw-r--r--fs/f2fs/extent_cache.c19
-rw-r--r--fs/f2fs/file.c9
-rw-r--r--fs/f2fs/inode.c9
-rw-r--r--fs/f2fs/node.c2
7 files changed, 63 insertions, 24 deletions
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index d4d7f329d23f..4d735c2a7d0b 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -46,6 +46,7 @@ static inline int f2fs_acl_count(size_t size)
static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
{
int i, count;
+ int err = -EINVAL;
struct posix_acl *acl;
struct f2fs_acl_header *hdr = (struct f2fs_acl_header *)value;
struct f2fs_acl_entry *entry = (struct f2fs_acl_entry *)(hdr + 1);
@@ -69,8 +70,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
for (i = 0; i < count; i++) {
- if ((char *)entry > end)
+ if (unlikely((char *)entry +
+ sizeof(struct f2fs_acl_entry_short) > end)) {
+ err = -EFSCORRUPTED;
goto fail;
+ }
acl->a_entries[i].e_tag = le16_to_cpu(entry->e_tag);
acl->a_entries[i].e_perm = le16_to_cpu(entry->e_perm);
@@ -85,6 +89,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
break;
case ACL_USER:
+ if (unlikely((char *)entry +
+ sizeof(struct f2fs_acl_entry) > end)) {
+ err = -EFSCORRUPTED;
+ goto fail;
+ }
acl->a_entries[i].e_uid =
make_kuid(&init_user_ns,
le32_to_cpu(entry->e_id));
@@ -92,6 +101,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
sizeof(struct f2fs_acl_entry));
break;
case ACL_GROUP:
+ if (unlikely((char *)entry +
+ sizeof(struct f2fs_acl_entry) > end)) {
+ err = -EFSCORRUPTED;
+ goto fail;
+ }
acl->a_entries[i].e_gid =
make_kgid(&init_user_ns,
le32_to_cpu(entry->e_id));
@@ -107,7 +121,7 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
return acl;
fail:
posix_acl_release(acl);
- return ERR_PTR(-EINVAL);
+ return ERR_PTR(err);
}
static void *f2fs_acl_to_disk(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index bbe07e3a6c75..c27509d4b6ef 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -745,6 +745,7 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
for (i = 0; i < orphan_blocks; i++) {
struct folio *folio;
struct f2fs_orphan_block *orphan_blk;
+ unsigned int entry_count;
folio = f2fs_get_meta_folio(sbi, start_blk + i);
if (IS_ERR(folio)) {
@@ -753,7 +754,18 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
}
orphan_blk = folio_address(folio);
- for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) {
+ entry_count = le32_to_cpu(orphan_blk->entry_count);
+ if (entry_count > F2FS_ORPHANS_PER_BLOCK) {
+ f2fs_err(sbi, "invalid orphan inode entry count %u",
+ entry_count);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_handle_error(sbi, ERROR_INCONSISTENT_ORPHAN);
+ err = -EFSCORRUPTED;
+ f2fs_folio_put(folio, true);
+ goto out;
+ }
+
+ for (j = 0; j < entry_count; j++) {
nid_t ino = le32_to_cpu(orphan_blk->ino[j]);
err = recover_orphan_inode(sbi, ino);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f468cba89f30..89105b22a024 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3537,6 +3537,7 @@ static int prepare_atomic_write_begin(struct f2fs_sb_info *sbi,
pgoff_t index = folio->index;
int err = 0;
block_t ori_blk_addr = NULL_ADDR;
+ bool cow_has_reserved_block = false;
/* If pos is beyond the end of file, reserve a new block in COW inode */
if ((pos & PAGE_MASK) >= i_size_read(inode))
@@ -3546,9 +3547,11 @@ static int prepare_atomic_write_begin(struct f2fs_sb_info *sbi,
err = __find_data_block(cow_inode, index, blk_addr);
if (err) {
return err;
- } else if (*blk_addr != NULL_ADDR) {
+ } else if (__is_valid_data_blkaddr(*blk_addr)) {
*use_cow = true;
return 0;
+ } else if (*blk_addr == NEW_ADDR) {
+ cow_has_reserved_block = true;
}
if (is_inode_flag_set(inode, FI_ATOMIC_REPLACE))
@@ -3561,10 +3564,13 @@ static int prepare_atomic_write_begin(struct f2fs_sb_info *sbi,
reserve_block:
/* Finally, we should reserve a new block in COW inode for the update */
- err = __reserve_data_block(cow_inode, index, blk_addr, node_changed);
- if (err)
- return err;
- inc_atomic_write_cnt(inode);
+ if (!cow_has_reserved_block) {
+ err = __reserve_data_block(cow_inode, index, blk_addr,
+ node_changed);
+ if (err)
+ return err;
+ inc_atomic_write_cnt(inode);
+ }
if (ori_blk_addr != NULL_ADDR)
*blk_addr = ori_blk_addr;
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index 87169fd29d89..129eed892a66 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -119,10 +119,9 @@ static bool __may_extent_tree(struct inode *inode, enum extent_type type)
if (!__init_may_extent_tree(inode, type))
return false;
- if (is_inode_flag_set(inode, FI_NO_EXTENT))
- return false;
-
if (type == EX_READ) {
+ if (is_inode_flag_set(inode, FI_NO_EXTENT))
+ return false;
if (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
!f2fs_sb_has_readonly(F2FS_I_SB(inode)))
return false;
@@ -645,14 +644,10 @@ static unsigned int __destroy_extent_node(struct inode *inode,
while (atomic_read(&et->node_cnt)) {
write_lock(&et->lock);
- if (!is_inode_flag_set(inode, FI_NO_EXTENT))
- set_inode_flag(inode, FI_NO_EXTENT);
node_cnt += __free_extent_tree(sbi, et, nr_shrink);
write_unlock(&et->lock);
}
- f2fs_bug_on(sbi, atomic_read(&et->node_cnt));
-
return node_cnt;
}
@@ -691,12 +686,12 @@ static void __update_extent_tree_range(struct inode *inode,
write_lock(&et->lock);
- if (is_inode_flag_set(inode, FI_NO_EXTENT)) {
- write_unlock(&et->lock);
- return;
- }
-
if (type == EX_READ) {
+ if (is_inode_flag_set(inode, FI_NO_EXTENT)) {
+ write_unlock(&et->lock);
+ return;
+ }
+
prev = et->largest;
dei.len = 0;
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6d42e2d28861..271221485d66 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1895,8 +1895,15 @@ static int f2fs_expand_inode_data(struct inode *inode, loff_t offset,
if (f2fs_is_pinned_file(inode)) {
block_t sec_blks = CAP_BLKS_PER_SEC(sbi);
- block_t sec_len = roundup(map.m_len, sec_blks);
+ block_t sec_len;
+ if (map.m_lblk % sec_blks) {
+ map.m_lblk = rounddown(map.m_lblk, sec_blks);
+ map.m_len = pg_end - map.m_lblk;
+ if (off_end)
+ map.m_len++;
+ }
+ sec_len = roundup(map.m_len, sec_blks);
map.m_len = sec_blks;
next_alloc:
f2fs_down_write(&sbi->pin_sem);
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 49470f4c9362..171cd4172025 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -555,8 +555,13 @@ static int do_read_inode(struct inode *inode)
static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
{
- return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
- ino == F2FS_COMPRESS_INO(sbi);
+ if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
+ return true;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (test_opt(sbi, COMPRESS_CACHE) && ino == F2FS_COMPRESS_INO(sbi))
+ return true;
+#endif
+ return false;
}
struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index ca3dad7418b2..feb152c21d2e 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1853,7 +1853,7 @@ int f2fs_write_single_node_folio(struct folio *node_folio, int sync_mode,
}
if (!__write_node_folio(node_folio, false, false, NULL,
- &wbc, false, FS_GC_NODE_IO, NULL))
+ &wbc, false, io_type, NULL))
err = -EAGAIN;
goto release_folio;
out_folio:
generated by cgit v1.2.3 (git 2.39.1) at 2026-07-11 23:22:05 +0000