Re: [PATCH 3/6] memcg: track shared inodes with dirty pages

From: Tejun Heo
Date: Thu Jan 15 2015 - 13:55:52 EST


On Thu, Jan 15, 2015 at 09:49:14PM +0300, Konstantin Khebnikov wrote:
> From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
>
> Inode is owned only by one memory cgroup, but if it's shared it might
> contain pages from multiple cgroups. This patch detects this situation
> in memory reclaiemer and marks dirty inode with flag I_DIRTY_SHARED
> which is cleared only when data is completely written. Memcg writeback
> always writes such inodes.
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>

This conflicts with the writeback cgroup support patchset which will
solve the writeback and memcg problem a lot more comprehensively.

http://lkml.kernel.org/g/1420579582-8516-1-git-send-email-tj@xxxxxxxxxx

Thanks.

--
tejun
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