From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Date: Mon, 8 Oct 2012 23:29:35 +0000 (-0700)
Subject: thp: fix the count of THP_COLLAPSE_ALLOC
X-Git-Tag: firefly_0821_release~3680^2~1857^2~136
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=65b3c07b43f7f8a5cbf8923011bd4e6650e3d1dc;p=firefly-linux-kernel-4.4.55.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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 9b72d1270519..860ea9127851 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1874,9 +1874,9 @@ 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);