diff mbox series

[2/2] mm/mlock: start is always smaller then vm_end

Message ID 20220504003958.18402-2-richard.weiyang@gmail.com (mailing list archive)
State New
Headers show
Series [1/2] mm/mlock: not handle NULL vma specially | expand

Commit Message

Wei Yang May 4, 2022, 12:39 a.m. UTC 
We would meet this situation in the loop since:

  * find_vma() would return a vma meets vm_end > start.
  * the following vma->vm_end is growing

So this situation never happens.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
---
 mm/mlock.c | 2 --
 1 file changed, 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/mlock.c b/mm/mlock.c
index 0b7cf7d60922..eab3b0a5b569 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -505,8 +505,6 @@  static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm,
 		mm = current->mm;
 
 	for (vma = find_vma(mm, start); vma ; vma = vma->vm_next) {
-		if (start >= vma->vm_end)
-			continue;
 		if (start + len <=  vma->vm_start)
 			break;
 		if (vma->vm_flags & VM_LOCKED) {