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author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-12-04 18:58:53 +0300 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-01-05 13:02:18 +0300 |
commit | fb0fec501f08a0a83af7a2b25888ec8cebab53b0 (patch) | |
tree | 82f78ea91951ae741276fad297ab96ea4638a0c7 /crypto/tcrypt.c | |
parent | 934acce3c069a3d8b14085957248444145d9ec1b (diff) | |
download | linux-fb0fec501f08a0a83af7a2b25888ec8cebab53b0.tar.xz |
mm: Export nr_swap_pages
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
Link: http://patchwork.freedesktop.org/patch/msgid/1449244734-25733-1-git-send-email-chris@chris-wilson.co.uk
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'crypto/tcrypt.c')
0 files changed, 0 insertions, 0 deletions