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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kishon · Aug 1, 2012 · 51a07e5 · 51a07e5
1 parent 8e125cd
commit 51a07e5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/memory.c b/mm/memory.c
@@ -3941,7 +3941,7 @@ 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