Re: sharing page cache pages between multiple mappings

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On Thu 19-05-16 12:17:14, Miklos Szeredi wrote:
> On Thu, May 19, 2016 at 11:05 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> > On Thu 19-05-16 10:20:13, Miklos Szeredi wrote:
> >> Has anyone thought about sharing pages between multiple files?
> >>
> >> The obvious application is for COW filesytems where there are
> >> logically distinct files that physically share data and could easily
> >> share the cache as well if there was infrastructure for it.
> >
> > FYI this has been discussed at LSFMM this year[1]. I wasn't at the
> > session so cannot tell you any details but the LWN article covers it at
> > least briefly.
> 
> Cool, so it's not such a crazy idea.

FWIW it is ;)
-- 
Michal Hocko
SUSE Labs
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