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authorDavid Rientjes <rientjes@google.com>2015-09-08 15:00:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-08 15:35:28 -0700
commit75e8f8b24cb0dc4951267d31f0a49e5ce2f345c4 (patch)
tree4d5d57fa391ad01803a7174a146e0eb5e831fcfc /mm/oom_kill.c
parent8989e4c7d4e3c30b55c998a1138cd06c92df7295 (diff)
downloadlinux-75e8f8b24cb0dc4951267d31f0a49e5ce2f345c4.tar.bz2
mm, oom: remove unnecessary variable
The "killed" variable in out_of_memory() can be removed since the call to oom_kill_process() where we should block to allow the process time to exit is obvious. Signed-off-by: David Rientjes <rientjes@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 91dd59f63910..1ecc0bcaecc5 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -645,7 +645,6 @@ bool out_of_memory(struct oom_control *oc)
unsigned long freed = 0;
unsigned int uninitialized_var(points);
enum oom_constraint constraint = CONSTRAINT_NONE;
- int killed = 0;
if (oom_killer_disabled)
return false;
@@ -653,7 +652,7 @@ bool out_of_memory(struct oom_control *oc)
blocking_notifier_call_chain(&oom_notify_list, 0, &freed);
if (freed > 0)
/* Got some memory back in the last second. */
- goto out;
+ return true;
/*
* If current has a pending SIGKILL or is exiting, then automatically
@@ -666,7 +665,7 @@ bool out_of_memory(struct oom_control *oc)
if (current->mm &&
(fatal_signal_pending(current) || task_will_free_mem(current))) {
mark_oom_victim(current);
- goto out;
+ return true;
}
/*
@@ -684,7 +683,7 @@ bool out_of_memory(struct oom_control *oc)
get_task_struct(current);
oom_kill_process(oc, current, 0, totalpages, NULL,
"Out of memory (oom_kill_allocating_task)");
- goto out;
+ return true;
}
p = select_bad_process(oc, &points, totalpages);
@@ -696,16 +695,12 @@ bool out_of_memory(struct oom_control *oc)
if (p && p != (void *)-1UL) {
oom_kill_process(oc, p, points, totalpages, NULL,
"Out of memory");
- killed = 1;
- }
-out:
- /*
- * Give the killed threads a good chance of exiting before trying to
- * allocate memory again.
- */
- if (killed)
+ /*
+ * Give the killed process a good chance to exit before trying
+ * to allocate memory again.
+ */
schedule_timeout_killable(1);
-
+ }
return true;
}