* + memcg-replace-in_interrupt-with-in_task.patch added to -mm tree
@ 2022-01-27 20:23 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2022-01-27 20:23 UTC (permalink / raw)
To: guro, hannes, mhocko, mm-commits, shakeelb, vvs
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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*** 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@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
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2022-01-27 20:23 + memcg-replace-in_interrupt-with-in_task.patch added to -mm tree akpm
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