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From: Daniel Vetter <daniel@ffwll.ch>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>,
	linux-mm@kvack.org, intel-gfx@lists.freedesktop.org, "Goel,
	Akash" <akash.goel@intel.com>
Subject: Re: [Intel-gfx] [PATCH v2 1/2] mm: Export nr_swap_pages
Date: Thu, 10 Dec 2015 10:32:42 +0100	[thread overview]
Message-ID: <20151210093242.GH20822@phenom.ffwll.local> (raw)
In-Reply-To: <20151204160952.GA24927@cmpxchg.org>

On Fri, Dec 04, 2015 at 11:09:52AM -0500, Johannes Weiner wrote:
> On Fri, Dec 04, 2015 at 03:58:53PM +0000, Chris Wilson wrote:
> > Some modules, like i915.ko, use swappable objects and may try to swap
> > them out under memory pressure (via the shrinker). Before doing so, they
> > want to check using get_nr_swap_pages() to see if any swap space is
> > available as otherwise they will waste time purging the object from the
> > device without recovering any memory for the system. This requires the
> > nr_swap_pages counter to be exported to the modules.
> > 
> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> > Cc: "Goel, Akash" <akash.goel@intel.com>
> > Cc: Johannes Weiner <hannes@cmpxchg.org>
> > Cc: linux-mm@kvack.org
> 
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>

Ack for merging this through drm-intel trees for 4.5? I'm a bit unclear
who's ack I need for that for linux-mm topics ...

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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  reply	other threads:[~2015-12-10  9:32 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-04 15:58 [PATCH v2 1/2] mm: Export nr_swap_pages Chris Wilson
2015-12-04 15:58 ` [PATCH v2 2/2] drm/i915: Disable shrinker for non-swapped backed objects Chris Wilson
2015-12-04 15:58   ` Chris Wilson
2015-12-04 16:11   ` Johannes Weiner
2015-12-04 16:11     ` Johannes Weiner
2015-12-10  9:34   ` Daniel Vetter
2015-12-04 16:09 ` [PATCH v2 1/2] mm: Export nr_swap_pages Johannes Weiner
2015-12-04 16:09   ` Johannes Weiner
2015-12-10  9:32   ` Daniel Vetter [this message]
2015-12-23 22:04     ` [Intel-gfx] " Johannes Weiner
2015-12-23 22:04       ` Johannes Weiner
2015-12-23 22:26       ` [Intel-gfx] " Andrew Morton
2016-01-05 10:05         ` Daniel Vetter
2015-12-07 13:48 ` Michal Hocko
2015-12-07 16:48   ` Johannes Weiner
2015-12-07 16:48     ` Johannes Weiner
2015-12-07 17:04     ` Michal Hocko
2015-12-07 18:02       ` Johannes Weiner
2015-12-07 18:02         ` Johannes Weiner
2015-12-07 18:10     ` [Intel-gfx] " Dave Gordon
2015-12-07 19:13       ` Johannes Weiner
2015-12-08 11:19         ` Dave Gordon
2015-12-08 11:19           ` Dave Gordon
2015-12-08 11:22         ` [Intel-gfx] " Michal Hocko
2015-12-08 11:22           ` Michal Hocko
2015-12-17 18:15           ` [PATCH v3] mm: Export {__}get_nr_swap_pages() Dave Gordon
2015-12-17 18:15             ` Dave Gordon
2015-12-17 19:45             ` Johannes Weiner
2015-12-17 19:45               ` Johannes Weiner

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