The patch titled
Subject: mm/mlock: stop counting mlocked pages when none vma is found
has been removed from the -mm tree. Its filename was
mm-mlock-stop-counting-mlocked-pages-when-none-vma-is-found.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/mlock: stop counting mlocked pages when none vma is found
There will be no vma satisfies addr < vm_end when find_vma() returns NULL.
Thus it's meaningless to traverse the vma list below because we can't
find any vma to count mlocked pages. Stop counting mlocked pages in this
case to save some vma list traversal cycles.
Link: https://lkml.kernel.org/r/20210204110705.17586-1-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mlock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/mlock.c~mm-mlock-stop-counting-mlocked-pages-when-none-vma-is-found
+++ a/mm/mlock.c
@@ -622,7 +622,7 @@ static unsigned long count_mm_mlocked_pa
vma = find_vma(mm, start);
if (vma == NULL)
- vma = mm->mmap;
+ return 0;
for (; vma ; vma = vma->vm_next) {
if (start >= vma->vm_end)
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
