[PATCH] mm/memory.c: print_vma_addr() call up_read(&mm->mmap_sem) directly

[Jeff Liu <jeff.liu@xxxxxxxxxx>]

Hello,

We can 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@xxxxxxxxxx>

---
 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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