The patch titled
Subject: memcg: replace in_interrupt() with !in_task()
has been added to the -mm tree. Its filename is
memcg-replace-in_interrupt-with-in_task.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/memcg-replace-in_interrupt-with-in_task.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/memcg-replace-in_interrupt-with-in_task.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Shakeel Butt <shakeelb@xxxxxxxxxx>
Subject: memcg: replace in_interrupt() with !in_task()
Replace the deprecated in_interrupt() with !in_task() because
in_interrupt() returns true for BH disabled even if the call happens in
the task context. in_task() is the right interface to differentiate task
context from NMI, hard IRQ and softirq contexts.
Link: https://lkml.kernel.org/r/20220127162636.3461256-1-shakeelb@xxxxxxxxxx
Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Vasily Averin <vvs@xxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/memcontrol.c~memcg-replace-in_interrupt-with-in_task
+++ a/mm/memcontrol.c
@@ -2688,7 +2688,7 @@ done_restock:
READ_ONCE(memcg->swap.high);
/* Don't bother a random interrupted task */
- if (in_interrupt()) {
+ if (!in_task()) {
if (mem_high) {
schedule_work(&memcg->high_work);
break;
@@ -6968,7 +6968,7 @@ void mem_cgroup_sk_alloc(struct sock *sk
return;
/* Do not associate the sock with unrelated interrupted task's memcg. */
- if (in_interrupt())
+ if (!in_task())
return;
rcu_read_lock();
_
Patches currently in -mm which might be from shakeelb@xxxxxxxxxx are
memcg-replace-in_interrupt-with-in_task.patch
