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| author | Joseph Qi <joseph.qi@linux.alibaba.com> | 2020-11-03 10:29:02 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 18:25:00 +0100 |
| commit | 9fbacd44844c614784d8a96e2aed1c197202ceba (patch) | |
| tree | 6dc1dbd51b47d8d36b56fe82ee5f3b2ba4a0f890 | |
| parent | 28f2350893a068fbde10e6e3621672b5a0e70058 (diff) | |
| download | linux-stable-9fbacd44844c614784d8a96e2aed1c197202ceba.tar.gz linux-stable-9fbacd44844c614784d8a96e2aed1c197202ceba.tar.bz2 linux-stable-9fbacd44844c614784d8a96e2aed1c197202ceba.zip | |
ext4: unlock xattr_sem properly in ext4_inline_data_truncate()
commit 7067b2619017d51e71686ca9756b454de0e5826a upstream.
It takes xattr_sem to check inline data again but without unlock it
in case not have. So unlock it before return.
Fixes: aef1c8513c1f ("ext4: let ext4_truncate handle inline data correctly")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Link: https://lore.kernel.org/r/1604370542-124630-1-git-send-email-joseph.qi@linux.alibaba.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/ext4/inline.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 00f9433eea23..df585267d3c2 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -1892,6 +1892,7 @@ void ext4_inline_data_truncate(struct inode *inode, int *has_inline) ext4_write_lock_xattr(inode, &no_expand); if (!ext4_has_inline_data(inode)) { + ext4_write_unlock_xattr(inode, &no_expand); *has_inline = 0; ext4_journal_stop(handle); return; |