If vma->vm_mm != t->mm, there's no need to call page_mapped_in_vma() as
add_to_kill() won't be called in this case. Move up the mm check to avoid
possible unneeded calling to page_mapped_in_vma().
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/memory-failure.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 69c4d1b48ad6..904c2b6284a4 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -521,11 +521,11 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
anon_vma_interval_tree_foreach(vmac, &av->rb_root,
pgoff, pgoff) {
vma = vmac->vma;
+ if (vma->vm_mm != t->mm)
+ continue;
if (!page_mapped_in_vma(page, vma))
continue;
- if (vma->vm_mm == t->mm)
- add_to_kill(t, page, FSDAX_INVALID_PGOFF, vma,
- to_kill);
+ add_to_kill(t, page, FSDAX_INVALID_PGOFF, vma, to_kill);
}
}
read_unlock(&tasklist_lock);
--
2.23.0
