On Sun, May 27, 2018 at 03:16:52AM +0000, Changwei Ge wrote:
> From: Changwei Ge <ge.changwei@xxxxxxx>
>
> Somehow, file system metadata was corrupted, which causes
> ocfs2_check_dir_entry() to fail in function ocfs2_dir_foreach_blk_el().
>
> According to the original design intention, if above happens we should
> skip the problematic block and continue to retrieve dir entry. But there
> is obviouse misuse of brelse around related code.
>
> After failure of ocfs2_check_dir_entry(), currunt code just moves to next
> position and uses the problematic buffer head again and again during
> which the problematic buffer head is released for multiple times. I
> suppose, this a serious issue which is long-lived in ocfs2. This may
> cause other file systems which is also used in a the same host insane.
>
> So we should also consider about bakcporting this patch into
> linux -stable.
>
> Suggested-by: Changkuo Shi <shi.changkuo@xxxxxxx>
> Signed-off-by: Changwei Ge <ge.changwei@xxxxxxx>
> ---
> fs/ocfs2/dir.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
