Re: [PATCH] mm: memcontrol: fix possible css ref leak on oom

From: Michal Hocko
Date: Tue May 24 2016 - 07:31:32 EST

On Tue 24-05-16 13:05:23, Vladimir Davydov wrote:
> On Tue, May 24, 2016 at 11:22:02AM +0200, Michal Hocko wrote:
> > you think about the following? I will cook up a full patch if this
> > (untested) looks ok.
> It won't work for most filesystems as they define custom ->readpages. I
> wonder if it'd be OK to patch them all not to trigger oom.

readpages is mostly a wrapper for mpage_readpages so I guess this
wouldn't be a big deal.
Michal Hocko