From 3463cec6bc53c0529e934adaa73278be8d041e99 Mon Sep 17 00:00:00 2001
From: Jeff Liu <jeff.liu@oracle.com>
Date: Sat, 21 Jul 2012 10:54:14 +1000
Subject: [PATCH] mm/memory.c:print_vma_addr(): call up_read(&mm->mmap_sem)
 directly

Call up_read(&mm->mmap_sem) directly since we have already got mm via
current->mm at the beginning of print_vma_addr().

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index 3b04b3ce3bb3..a18335f4ff51 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3938,7 +3938,7 @@ void print_vma_addr(char *prefix, unsigned long ip)
 			free_page((unsigned long)buf);
 		}
 	}
-	up_read(&current->mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 }
 
 #ifdef CONFIG_PROVE_LOCKING
-- 
2.39.5