6.6-stable review patch. If anyone has any objections, please let me know.
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From: Greg Kroah-Hartman gregkh@linuxfoundation.org
This reverts commit bad184d26a4f68aa00ad75502f9669950a790f71 which is commit afa87ce85379e2d93863fce595afdb5771a84004 upstream.
The workqueue patches backported to 6.6.y caused some reported regressions, so revert them for now.
Reported-by: Thorsten Leemhuis regressions@leemhuis.info Cc: Tejun Heo tj@kernel.org Cc: Marek Szyprowski m.szyprowski@samsung.com Cc: Nathan Chancellor nathan@kernel.org Cc: Sasha Levin sashal@kernel.org Cc: Audra Mitchell audra@redhat.com Link: https://lore.kernel.org/all/ce4c2f67-c298-48a0-87a3-f933d646c73b@leemhuis.in... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/workqueue.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)
--- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1450,11 +1450,6 @@ static void put_pwq_unlocked(struct pool } }
-static bool pwq_is_empty(struct pool_workqueue *pwq) -{ - return !pwq->nr_active && list_empty(&pwq->inactive_works); -} - static void pwq_activate_inactive_work(struct work_struct *work) { struct pool_workqueue *pwq = get_work_pwq(work); @@ -3324,7 +3319,7 @@ reflush: bool drained;
raw_spin_lock_irq(&pwq->pool->lock); - drained = pwq_is_empty(pwq); + drained = !pwq->nr_active && list_empty(&pwq->inactive_works); raw_spin_unlock_irq(&pwq->pool->lock);
if (drained) @@ -4784,7 +4779,7 @@ static bool pwq_busy(struct pool_workque
if ((pwq != pwq->wq->dfl_pwq) && (pwq->refcnt > 1)) return true; - if (!pwq_is_empty(pwq)) + if (pwq->nr_active || !list_empty(&pwq->inactive_works)) return true;
return false; @@ -5222,7 +5217,7 @@ void show_one_workqueue(struct workqueue unsigned long flags;
for_each_pwq(pwq, wq) { - if (!pwq_is_empty(pwq)) { + if (pwq->nr_active || !list_empty(&pwq->inactive_works)) { idle = false; break; } @@ -5234,7 +5229,7 @@ void show_one_workqueue(struct workqueue
for_each_pwq(pwq, wq) { raw_spin_lock_irqsave(&pwq->pool->lock, flags); - if (!pwq_is_empty(pwq)) { + if (pwq->nr_active || !list_empty(&pwq->inactive_works)) { /* * Defer printing to avoid deadlocks in console * drivers that queue work while holding locks