From 798fd756952c4b6cb7dfe6f6437e9f02da79a5bc Mon Sep 17 00:00:00 2001 From: Vladimir Davydov Date: Tue, 26 Jul 2016 15:22:30 -0700 Subject: [PATCH] mm: zap ZONE_OOM_LOCKED Not used since oom_lock was instroduced. Link: http://lkml.kernel.org/r/1464358093-22663-1-git-send-email-vdavydov@virtuozzo.com Signed-off-by: Vladimir Davydov Acked-by: Michal Hocko Acked-by: Johannes Weiner Cc: Tetsuo Handa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 1 - mm/oom_kill.c | 4 ++-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 02069c23486d..3388ccbab7d6 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -524,7 +524,6 @@ struct zone { enum zone_flags { ZONE_RECLAIM_LOCKED, /* prevents concurrent reclaim */ - ZONE_OOM_LOCKED, /* zone is in OOM killer zonelist */ ZONE_CONGESTED, /* zone has many dirty pages backed by * a congested BDI */ diff --git a/mm/oom_kill.c b/mm/oom_kill.c index ddf74487f848..398c245a484a 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -988,8 +988,8 @@ bool out_of_memory(struct oom_control *oc) /* * The pagefault handler calls here because it is out of memory, so kill a - * memory-hogging task. If any populated zone has ZONE_OOM_LOCKED set, a - * parallel oom killing is already in progress so do nothing. + * memory-hogging task. If oom_lock is held by somebody else, a parallel oom + * killing is already in progress so do nothing. */ void pagefault_out_of_memory(void) {