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memcg: remove extra newlines from memcg oom kill log 

Commit e61734c55c ("cgroup: remove cgroup->name") added two extra
newlines to memcg oom kill log messages.  This makes dmesg hard to read
and parse.  The issue affects 3.15+.

Example:

  Task in /t                          <<< extra #1
   killed as a result of limit of /t
                                      <<< extra #2
  memory: usage 102400kB, limit 102400kB, failcnt 274712

Remove the extra newlines from memcg oom kill messages, so the messages
look like:

  Task in /t killed as a result of limit of /t
  memory: usage 102400kB, limit 102400kB, failcnt 240649

Fixes: e61734c55c ("cgroup: remove cgroup->name")
Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Greg Thelen 2015-01-26 12:58:38 -08:00 committed by Linus Torvalds
parent d69911a68c
commit 0346dadbf0
1 changed files with 2 additions and 2 deletions
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4
mm/memcontrol.c
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@ -1477,9 +1477,9 @@ void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
pr_info("Task in ");
pr_cont_cgroup_path(task_cgroup(p, memory_cgrp_id));
pr_info(" killed as a result of limit of ");
pr_cont(" killed as a result of limit of ");
pr_cont_cgroup_path(memcg->css.cgroup);
pr_info("\n");
pr_cont("\n");
rcu_read_unlock();