From e270acd2227a982554ff43fa89b9baef76abeb8b Mon Sep 17 00:00:00 2001
From: Prakash Gupta <guptap@codeaurora.org>
Date: Wed, 2 Aug 2017 15:16:35 +0530
Subject: [PATCH] mm, oom: run the showmem notifier in oom

When the oom starts killing processes, it's useful to
be able to see the state of unaccounted memory in the system. Call the
showmem notifier to get other clients to dump out their state.

Change-Id: Id32ff6d6747fee7d0889447323ddce25282e93f6
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>
[swatsrid@codeaurora.org: Fix trivial errors and merge conflicts]
Signed-off-by: Swathi Sridhar <swatsrid@codeaurora.org>
[isaacm@codeaurora.org: Fix trivial merge conflicts]
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
---
 mm/oom_kill.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 71e3acea7817..3d24305f758f 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -42,6 +42,7 @@
 #include <linux/kthread.h>
 #include <linux/init.h>
 #include <linux/mmu_notifier.h>
+#include <linux/show_mem_notifier.h>
 
 #include <asm/tlb.h>
 #include "internal.h"
@@ -464,7 +465,10 @@ static void dump_header(struct oom_control *oc, struct task_struct *p)
 		show_mem(SHOW_MEM_FILTER_NODES, oc->nodemask);
 		if (is_dump_unreclaim_slabs())
 			dump_unreclaimable_slab();
+
+		show_mem_call_notifiers();
 	}
+
 	if (sysctl_oom_dump_tasks)
 		dump_tasks(oc);
 	if (p)