From dc3f21eadeea6d9898271ff32d35d5e00c6872ea Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 21 Mar 2012 16:33:47 -0700 Subject: [PATCH] mm, oom: introduce independent oom killer ratelimit state printk_ratelimit() uses the global ratelimit state for all printks. The oom killer should not be subjected to this state just because another subsystem or driver may be flooding the kernel log. This patch introduces printk ratelimiting specifically for the oom killer. Signed-off-by: David Rientjes Acked-by: KOSAKI Motohiro Reviewed-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/oom_kill.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 856106036ba2..517299c808cb 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -34,6 +34,7 @@ #include #include #include +#include #define CREATE_TRACE_POINTS #include @@ -444,6 +445,8 @@ static void oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, struct task_struct *t = p; struct mm_struct *mm; unsigned int victim_points = 0; + static DEFINE_RATELIMIT_STATE(oom_rs, DEFAULT_RATELIMIT_INTERVAL, + DEFAULT_RATELIMIT_BURST); /* * If the task is already exiting, don't alarm the sysadmin or kill @@ -454,7 +457,7 @@ static void oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, return; } - if (printk_ratelimit()) + if (__ratelimit(&oom_rs)) dump_header(p, gfp_mask, order, memcg, nodemask); task_lock(p); -- 2.20.1