Swapcache readahead pages are charged before get used, so it unlikely be
migrated before charged. remove the incorrect comments.
Signed-off-by: Alex Shi <alex....@linux.alibaba.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Vladimir Davydov <vdavydov....@gmail.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: cgro...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
mm/memcontrol.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 45465c03a8d7..08c267305725 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6941,7 +6941,6 @@ void mem_cgroup_migrate(struct page *oldpage, struct page
*newpage)
if (page_memcg(newpage))
return;
- /* Swapcache readahead pages can get replaced before being charged */
memcg = page_memcg(oldpage);
VM_WARN_ON_ONCE_PAGE(!memcg, oldpage);
if (!memcg)
--
2.29.GIT
