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Date: Thu, 18 Feb 2016 16:05:07 -0500
From: Rik van Riel <riel@...hat.com>
To: Johannes Weiner <hannes@...xchg.org>, linux-mm@...ck.org
Cc: Hugh Dickins <hughd@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Mel Gorman <mgorman@...e.de>, linux-kernel@...r.kernel.org,
kernel-team@...com
Subject: Re: [RFC PATCH] proc: do not include shmem and driver pages in
/proc/meminfo::Cached
On Thu, 2016-02-18 at 15:36 -0500, Johannes Weiner wrote:
>
> The semantics of Cached including shmem and kernel pages have been
> this way forever, dictated by the single-LRU implementation rather
>
They may have been that way forever,
but they have also been confusing to
users forever, so ...
> than optimal semantics. So it's an uncomfortable proposal to change
> it
> now. But what other way to fix this for existing users? What other
> way
> to make the interface more intuitive for future users? And what could
> break by removing it now? I guess somebody who already subtracts
> Shmem
> from Cached.
>
> What are your thoughts on this?
>
Reviewed-by: Rik van Riel <riel@...hat.com>
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