This is a note to let you know that I've just added the patch titled
Revert "workqueue.c: Increase workqueue name length"
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-workqueue.c-increase-workqueue-name-length.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6964db035e2d9e8fb121cc2ff8711cc57a6ad09d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 3 Apr 2024 16:29:27 +0200
Subject: Revert "workqueue.c: Increase workqueue name length"
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
This reverts commit 43f0cec175f92c7a01e43d5d6f276262670a97ed which is commit
31c89007285d365aa36f71d8fb0701581c770a27 upstream.
The workqueue patches backported to 6.8.y caused some reported
regressions, so revert them for now.
Reported-by: Thorsten Leemhuis <regressions@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Sasha Levin <sashal@xxxxxxxxxx>
Cc: Audra Mitchell <audra@xxxxxxxxxx>
Link: https://lore.kernel.org/all/ce4c2f67-c298-48a0-87a3-f933d646c73b@xxxxxxxxxxxxx/
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/workqueue.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -108,7 +108,7 @@ enum {
RESCUER_NICE_LEVEL = MIN_NICE,
HIGHPRI_NICE_LEVEL = MIN_NICE,
- WQ_NAME_LEN = 32,
+ WQ_NAME_LEN = 24,
};
/*
@@ -4666,7 +4666,6 @@ struct workqueue_struct *alloc_workqueue
va_list args;
struct workqueue_struct *wq;
struct pool_workqueue *pwq;
- int len;
/*
* Unbound && max_active == 1 used to imply ordered, which is no longer
@@ -4693,12 +4692,9 @@ struct workqueue_struct *alloc_workqueue
}
va_start(args, max_active);
- len = vsnprintf(wq->name, sizeof(wq->name), fmt, args);
+ vsnprintf(wq->name, sizeof(wq->name), fmt, args);
va_end(args);
- if (len >= WQ_NAME_LEN)
- pr_warn_once("workqueue: name exceeds WQ_NAME_LEN. Truncating to: %s\n", wq->name);
-
max_active = max_active ?: WQ_DFL_ACTIVE;
max_active = wq_clamp_max_active(max_active, flags, wq->name);
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-6.8/revert-workqueue-move-pwq-max_active-to-wq-max_active.patch
queue-6.8/revert-workqueue-replace-pwq_activate_inactive_work-with-pwq_activate_work.patch
queue-6.8/revert-workqueue-implement-system-wide-nr_active-enforcement-for-unbound-workqueues.patch
queue-6.8/revert-workqueue-introduce-struct-wq_node_nr_active.patch
queue-6.8/revert-workqueue-rcu-protect-wq-dfl_pwq-and-implement-accessors-for-it.patch
queue-6.8/revert-workqueue-don-t-call-cpumask_test_cpu-with-1-cpu-in-wq_update_node_max_active.patch
queue-6.8/revert-workqueue-factor-out-pwq_is_empty.patch
queue-6.8/revert-workqueue-shorten-events_freezable_power_efficient-name.patch
queue-6.8/revert-workqueue-make-wq_adjust_max_active-round-robin-pwqs-while-activating.patch
queue-6.8/revert-workqueue.c-increase-workqueue-name-length.patch
queue-6.8/revert-workqueue-move-nr_active-handling-into-helpers.patch
