mm/mmap.c: remove redundant local variables for may_expand_vm()
Simplify may_expand_vm().
[akpm@linux-foundation.org: further simplification, per Naoya Horiguchi]
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/mmap.c b/mm/mmap.c
index 2ce04a6..9da9c27 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2988,14 +2988,7 @@
*/
int may_expand_vm(struct mm_struct *mm, unsigned long npages)
{
- unsigned long cur = mm->total_vm; /* pages */
- unsigned long lim;
-
- lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
-
- if (cur + npages > lim)
- return 0;
- return 1;
+ return mm->total_vm + npages <= rlimit(RLIMIT_AS) >> PAGE_SHIFT;
}
static int special_mapping_fault(struct vm_area_struct *vma,