On Mon, Jul 19, 2021 at 7:00 AM Dmitry Safonov [off-list ref] wrote:

Hi Vasily,

On Mon, 19 Jul 2021 at 11:45, Vasily Averin [off-list ref] wrote:
[..]

quoted

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ae1f5d0..1bbf239 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c

@@ -968,7 +968,7 @@ static __always_inline bool memcg_kmem_bypass(void)
                return false;

        /* Memcg to charge can't be determined. */
-       if (in_interrupt() || !current->mm || (current->flags & PF_KTHREAD))
+       if (!in_task() || !current->mm || (current->flags & PF_KTHREAD))
                return true;

This seems to do two separate things in one patch.
Probably, it's better to separate them.
(I may miss how route changes are related to more generic
__alloc_pages() change)

It was requested to squash them together in some previous versions.
https://lore.kernel.org/linux-mm/YEiUIf0old+AZssa-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org/