[Intel-gfx] [PATCH v2 1/2] mm: Export nr_swap_pages

Daniel Vetter daniel at ffwll.ch
Thu Dec 10 01:32:42 PST 2015

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 at chris-wilson.co.uk>
> > Cc: "Goel, Akash" <akash.goel at intel.com>
> > Cc: Johannes Weiner <hannes at cmpxchg.org>
> > Cc: linux-mm at kvack.org
> Acked-by: Johannes Weiner <hannes at 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

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