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authorGlauber Costa <glommer@parallels.com>2012-04-12 12:49:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-12 13:12:12 -0700
commit569530fb1b40ab2d2ca147ee79898ac807ebdf90 (patch)
treee9f4f9a04a9a8f2a94a919aff55629f8946b30f4 /mm/memcontrol.c
parent32050017cf3bf2b983571a90351328b4f66e463d (diff)
downloadop-kernel-dev-569530fb1b40ab2d2ca147ee79898ac807ebdf90.zip
op-kernel-dev-569530fb1b40ab2d2ca147ee79898ac807ebdf90.tar.gz
memcg: do not open code accesses to res_counter members
We should use the accessor res_counter_read_u64 for that. Although a purely cosmetic change is sometimes better delayed, to avoid conflicting with other people's work, we are starting to have people touching this code as well, and reproducing the open code behavior because that's the standard =) Time to fix it, then. Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ea1e879..a7165a6 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3763,7 +3763,7 @@ move_account:
goto try_to_free;
cond_resched();
/* "ret" should also be checked to ensure all lists are empty. */
- } while (memcg->res.usage > 0 || ret);
+ } while (res_counter_read_u64(&memcg->res, RES_USAGE) > 0 || ret);
out:
css_put(&memcg->css);
return ret;
@@ -3778,7 +3778,7 @@ try_to_free:
lru_add_drain_all();
/* try to free all pages in this cgroup */
shrink = 1;
- while (nr_retries && memcg->res.usage > 0) {
+ while (nr_retries && res_counter_read_u64(&memcg->res, RES_USAGE) > 0) {
int progress;
if (signal_pending(current)) {
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