diff options
| author | Michal Hocko <mhocko@suse.com> | 2016-05-19 17:13:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-19 19:12:14 -0700 |
| commit | 3ef22dfff2390e75b379f9715388a852aa56e0d5 (patch) | |
| tree | db03e0e91c8bdf4a4ecc3be02e04df5bdcb89dcc /mm/memcontrol.c | |
| parent | 3da88fb3bacfaa33ff9d13730d17110bb2d9604d (diff) | |
| download | linux-0-day-3ef22dfff2390e75b379f9715388a852aa56e0d5.tar.gz linux-0-day-3ef22dfff2390e75b379f9715388a852aa56e0d5.tar.xz | |
oom, oom_reaper: try to reap tasks which skip regular OOM killer path
If either the current task is already killed or PF_EXITING or a selected
task is PF_EXITING then the oom killer is suppressed and so is the oom
reaper. This patch adds try_oom_reaper which checks the given task and
queues it for the oom reaper if that is safe to be done meaning that the
task doesn't share the mm with an alive process.
This might help to release the memory pressure while the task tries to
exit.
[akpm@linux-foundation.org: fix nommu build]
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Raushaniya Maksudova <rmaksudova@parallels.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 1b40dcad2b90f..d71d387868e63 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1275,6 +1275,7 @@ static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, */ if (fatal_signal_pending(current) || task_will_free_mem(current)) { mark_oom_victim(current); + try_oom_reaper(current); goto unlock; } |