[PATCH] memcg: Do not open code accesses to res_counter members
From: Glauber Costa <hidden>
Date: 2012-03-20 16:55:16
Also in:
linux-mm
Subsystem:
control group - memory resource controller (memcg), memory management, the rest · Maintainers:
Johannes Weiner, Michal Hocko, Roman Gushchin, Shakeel Butt, Andrew Morton, Linus Torvalds
We should use the acessor res_counter_read_u64 for that. Although a purely cosmetic change is sometimes better of 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 <redacted> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <redacted> Cc: KAMEZAWA Hiroyuki <redacted> --- mm/memcontrol.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 87a1e21..27c1bfa 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c@@ -3708,7 +3708,7 @@ 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;
@@ -3723,7 +3723,7 @@ 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)) {
--
1.7.7.6
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