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| author | Theodore Ts'o <tytso@mit.edu> | 2023-05-24 05:49:49 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-05-30 21:33:50 +0200 |
| commit | b928dfdcb27d8fa59917b794cfba53052a2f050f (patch) | |
| tree | 294ac1565274e7eceeb4647b2def3411f9ed08d4 /fs/ext4 | |
| parent | ext4: add EA_INODE checking to ext4_iget() (diff) | |
| download | linux-b928dfdcb27d8fa59917b794cfba53052a2f050f.tar.xz linux-b928dfdcb27d8fa59917b794cfba53052a2f050f.zip | |
ext4: set lockdep subclass for the ea_inode in ext4_xattr_inode_cache_find()
If the ea_inode has been pushed out of the inode cache while there is
still a reference in the mb_cache, the lockdep subclass will not be
set on the inode, which can lead to some lockdep false positives.
Fixes: 33d201e0277b ("ext4: fix lockdep warning about recursive inode locking")
Cc: stable@kernel.org
Reported-by: syzbot+d4b971e744b1f5439336@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230524034951.779531-3-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/xattr.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index a27208129a80..ff7ab63c5b4f 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1539,6 +1539,7 @@ ext4_xattr_inode_cache_find(struct inode *inode, const void *value, EXT4_IGET_EA_INODE); if (IS_ERR(ea_inode)) goto next_entry; + ext4_xattr_inode_set_class(ea_inode); if (i_size_read(ea_inode) == value_len && !ext4_xattr_inode_read(ea_inode, ea_data, value_len) && !ext4_xattr_inode_verify_hashes(ea_inode, NULL, ea_data, |