Calling ext4_fc_mark_ineligible() with a NULL handle is racy and may result in a fast-commit being done before the filesystem is effectively marked as ineligible. This patch moves the call to this function so that an handle can be used. If a transaction fails to start, then there's not point in trying to mark the filesystem as ineligible, and an error will eventually be returned to user-space. Suggested-by: Jan Kara <jack@xxxxxxx> Signed-off-by: Luis Henriques (SUSE) <luis.henriques@xxxxxxxxx> --- fs/ext4/xattr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 46ce2f21fef9..aea9e3c405f1 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -2559,6 +2559,8 @@ ext4_xattr_set(struct inode *inode, int name_index, const char *name, error = ext4_xattr_set_handle(handle, inode, name_index, name, value, value_len, flags); + ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR, + handle); error2 = ext4_journal_stop(handle); if (error == -ENOSPC && ext4_should_retry_alloc(sb, &retries)) @@ -2566,7 +2568,6 @@ ext4_xattr_set(struct inode *inode, int name_index, const char *name, if (error == 0) error = error2; } - ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR, NULL); return error; }
