Re: [PATCH 4/8] proc: Optimise smaps for shmem entries

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To: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH 4/8] proc: Optimise smaps for shmem entries
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Date: Wed, 26 Aug 2020 10:24:27 -0400
Cc: linux-mm@xxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Hugh Dickins <hughd@xxxxxxxxxx>, William Kucharski <william.kucharski@xxxxxxxxxx>, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>, Alexey Dobriyan <adobriyan@xxxxxxxxx>, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>, Matthew Auld <matthew.auld@xxxxxxxxx>, Huang Ying <ying.huang@xxxxxxxxx>, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20200819184850.24779-5-willy@infradead.org>
References: <20200819184850.24779-1-willy@infradead.org> <20200819184850.24779-5-willy@infradead.org>

On Wed, Aug 19, 2020 at 07:48:46PM +0100, Matthew Wilcox (Oracle) wrote:
> Avoid bumping the refcount on pages when we're only interested in the
> swap entries.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>

References:
- [PATCH 0/8] Return head pages from find_get_entry and find_lock_entry
  - From: Matthew Wilcox (Oracle)
- [PATCH 4/8] proc: Optimise smaps for shmem entries
  - From: Matthew Wilcox (Oracle)

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