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From: Jeff Liu <jeff.liu@oracle.com>
To: linux-mm@kvack.org
Cc: akpm@linux-foundation.org
Subject: [PATCH RESEND] mm/memory.c: print_vma_addr() call up_read(&mm->mmap_sem) directly
Date: Fri, 29 Jun 2012 19:06:02 +0800	[thread overview]
Message-ID: <4FED8C1A.5020301@oracle.com> (raw)

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

Thanks,
-Jeff


Signed-off-by: Jie Liu <jeff.liu@oracle.com>

---
 mm/memory.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 2466d12..6e49113 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3929,7 +3929,7 @@ 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
-- 
1.7.9

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                 reply	other threads:[~2012-06-29 11:06 UTC|newest]

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