This is a note to let you know that I've just added the patch titled
mm: vmscan: respect NUMA policy mask when shrinking slab on direct reclaim
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-vmscan-respect-numa-policy-mask-when-shrinking-slab-on-direct-reclaim.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 99120b772b52853f9a2b829a21dd44d9b20558f1 Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Date: Thu, 3 Apr 2014 14:47:19 -0700
Subject: mm: vmscan: respect NUMA policy mask when shrinking slab on direct reclaim
From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
commit 99120b772b52853f9a2b829a21dd44d9b20558f1 upstream.
When direct reclaim is executed by a process bound to a set of NUMA
nodes, we should scan only those nodes when possible, but currently we
will scan kmem from all online nodes even if the kmem shrinker is NUMA
aware. That said, binding a process to a particular NUMA node won't
prevent it from shrinking inode/dentry caches from other nodes, which is
not good. Fix this.
Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Dave Chinner <dchinner@xxxxxxxxxx>
Cc: Glauber Costa <glommer@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2424,8 +2424,8 @@ static unsigned long do_try_to_free_page
unsigned long lru_pages = 0;
nodes_clear(shrink->nodes_to_scan);
- for_each_zone_zonelist(zone, z, zonelist,
- gfp_zone(sc->gfp_mask)) {
+ for_each_zone_zonelist_nodemask(zone, z, zonelist,
+ gfp_zone(sc->gfp_mask), sc->nodemask) {
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
continue;
Patches currently in stable-queue which might be from vdavydov@xxxxxxxxxxxxx are
queue-3.14/mm-vmscan-shrink_slab-rename-max_pass-freeable.patch
queue-3.14/mm-vmscan-respect-numa-policy-mask-when-shrinking-slab-on-direct-reclaim.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html