+ memcg-replace-in_interrupt-with-in_task.patch added to -mm tree

[akpm@linux-foundation.org]

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

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------------------------------------------------------
From: Shakeel Butt <shakeelb@google.com>
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@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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@google.com are

memcg-replace-in_interrupt-with-in_task.patch