Re: sharing page cache pages between multiple mappings
From: Michal Hocko <mhocko@kernel.org>
Date: 2016-05-19 09:05:21
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linux-fsdevel, linux-mm, lkml
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. [1] https://lwn.net/Articles/684826/ -- Michal Hocko SUSE Labs