lkml.org 
[lkml]   [2015]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [f2fs-dev] [PATCH 06/12] f2fs: update on-disk extents even under extent_cache
Date
> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Tuesday, June 30, 2015 2:40 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 06/12] f2fs: update on-disk extents even under extent_cache
>
> Previously, f2fs_update_extent_cache() updates in-memory extent_cache all the
> time, and then finally preserves its up-to-date extent into on-disk one during
> f2fs_evict_inode.
>
> But, in the following scenario:
>
> 1. mount
> 2. open & write an extent X
> 3. f2fs_evict_inode; on-disk extent is X
> 4. open & update the extent X with Y
> 5. sync; trigger checkpoint
> 6. power-cut
>
> after power-on, f2fs should serve extent Y, but we have an on-disk extent X.
>
> This causes a failure on xfstests/311.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Reviewed-by: Chao Yu <chao2.yu@samsung.com>



\
 
 \ /
  Last update: 2015-06-30 05:21    [W:0.188 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site