On Thu, Dec 27, 2012 at 01:43:14AM -0500, Theodore Ts'o wrote:
> Commit c278531d39f3 added a warning when ext4_flush_unwritten_io() is
> called without i_mutex being taken. It had previously not been taken
> during orphan cleanup since races weren't possible at that point in
> the mount process, but as a result of this commit, we will now see a
> kernel WARN_ON in this case. Take the i_mutex in
> ext4_orphan_cleanup() to suppress this warning.
>
> Reported-by: Alexander Beregalov <a.beregalov@xxxxxxxxx>
> Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Zheng Liu <wenqing.lz@xxxxxxxxxx>
Regards,
- Zheng
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