atomic_dec_not_zero is defined for each architecture through <linux/atomic.h> to provide the functionality of atomic_add_unless(x, -1, 0). Signed-off-by: Sven Eckelmann <sven@xxxxxxxxxxxxx> Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> Cc: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: linux-mm@xxxxxxxxx --- mm/memcontrol.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 5f84d23..00a7580 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1909,10 +1909,10 @@ static void mem_cgroup_unmark_under_oom(struct mem_cgroup *mem) /* * When a new child is created while the hierarchy is under oom, * mem_cgroup_oom_lock() may not be called. We have to use - * atomic_add_unless() here. + * atomic_dec_not_zero() here. */ for_each_mem_cgroup_tree(iter, mem) - atomic_add_unless(&iter->under_oom, -1, 0); + atomic_dec_not_zero(&iter->under_oom); } static DEFINE_SPINLOCK(memcg_oom_lock); -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
