Re: [PATCH 1/3] ext4: Wait for outstanding dio during truncate in nojournal mode

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On Wed, May 22, 2019 at 11:03:15AM +0200, Jan Kara wrote:
> We didn't wait for outstanding direct IO during truncate in nojournal
> mode (as we skip orphan handling in that case). This can lead to fs
> corruption or stale data exposure if truncate ends up freeing blocks
> and these get reallocated before direct IO finishes. Fix the condition
> determining whether the wait is necessary.
> 
> CC: stable@xxxxxxxxxxxxxxx
> Fixes: 1c9114f9c0f1 ("ext4: serialize unlocked dio reads with truncate")
> Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
> Signed-off-by: Jan Kara <jack@xxxxxxx>

Thanks, applied.

					- Ted



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