[PATCH] zoned-vm-counters: remove read_page_state()

[powerpc.git] / mm / oom_kill.c

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 042e643..d46ed0f 100644 (file)
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -22,10 +22,11 @@
 #include <linux/jiffies.h>
 #include <linux/cpuset.h>
 
+int sysctl_panic_on_oom;
 /* #define DEBUG */
 
 /**
- * oom_badness - calculate a numeric value for how bad this task has been
+ * badness - calculate a numeric value for how bad this task has been
  * @p: task struct of which task we should calculate
  * @uptime: current uptime in seconds
  *
@@ -200,7 +201,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints)
                        continue;
 
                /*
-                * This is in the process of releasing memory so for wait it
+                * This is in the process of releasing memory so wait for it
                 * to finish before killing some other task by mistake.
                 */
                releasing = test_tsk_thread_flag(p, TIF_MEMDIE) ||
@@ -306,7 +307,7 @@ static int oom_kill_process(struct task_struct *p, unsigned long points,
 }
 
 /**
- * oom_kill - kill the "best" process when we run out of memory
+ * out_of_memory - kill the "best" process when we run out of memory
  *
  * If we run out of memory, we have the choice between either
  * killing a random task (bad), letting the system crash (worse)
@@ -344,6 +345,8 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order)
                break;
 
        case CONSTRAINT_NONE:
+               if (sysctl_panic_on_oom)
+                       panic("out of memory. panic_on_oom is selected\n");
 retry:
                /*
                 * Rambo mode: Shoot down a process and hope it solves whatever