From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 28 Sep 2012 00:19:14 +0000 (+1000)
Subject: mm/mmu_notifier: init notifier if necessary
X-Git-Tag: next-20121004~1^2~338
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=736fe941ffd57c81c5f6b76753d3826caedea2af;p=karo-tx-linux.git

mm/mmu_notifier: init notifier if necessary

v2: Use GFP_KERNEL instead of GFP_ATOMIC when allocating the MMU
    notifier_mm as Andrew suggested.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 4bdeeb963a48..947df83dccb0 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -215,7 +215,7 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn,
 
 	if (!mm_has_notifiers(mm)) {
 		mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm),
-					GFP_ATOMIC);
+					GFP_KERNEL);
 		if (unlikely(!mmu_notifier_mm)) {
 			ret = -ENOMEM;
 			goto out_of_mem;