From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Date: Fri, 7 Sep 2012 00:23:37 +0000 (+1000)
Subject: thp: fix the count of THP_COLLAPSE_ALLOC
X-Git-Tag: next-20120907~1^2~156
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f0f0391783ad51b917aba98cc462f4e7b6f81e46;p=karo-tx-linux.git

thp: fix the count of THP_COLLAPSE_ALLOC

THP_COLLAPSE_ALLOC is double counted if NUMA is disabled since it has
already been calculated in khugepaged_alloc_hugepage

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 8b3c55a7c070..258c018fb3f1 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1875,9 +1875,9 @@ static void collapse_huge_page(struct mm_struct *mm,
 		*hpage = ERR_PTR(-ENOMEM);
 		return;
 	}
+	count_vm_event(THP_COLLAPSE_ALLOC);
 #endif
 
-	count_vm_event(THP_COLLAPSE_ALLOC);
 	if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
 #ifdef CONFIG_NUMA
 		put_page(new_page);