Commit 9259607e authored by Marco Crivellari's avatar Marco Crivellari Committed by Sean Christopherson
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KVM: Explicitly allocate/setup irqfd cleanup as per-CPU workqueue 



Explicitly request the use of per-CPU queues for the irqfd cleanup
workqueue in preparation for changing the default behavior of
alloc_workqueue() from per-CPU to unbound, which will in turn allow for
the removal of WQ_UNBOUND.  See commit 930c2ea5 ("workqueue: Add new
WQ_PERCPU flag") for details.

No functional change intended.

Suggested-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarMarco Crivellari <marco.crivellari@suse.com>
Link: https://lore.kernel.org/r/20250905091139.110677-2-marco.crivellari@suse.com


[sean: rewrite changelog to tailor it to the KVM]
Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent 3a866087

virt/kvm/eventfd.c

+1 −1
Original line number Diff line number Diff line
@@ -707,7 +707,7 @@ bool kvm_notify_irqfd_resampler(struct kvm *kvm, 
 */

int kvm_irqfd_init(void)

{

	irqfd_cleanup_wq = alloc_workqueue("kvm-irqfd-cleanup", 0, 0);

	irqfd_cleanup_wq = alloc_workqueue("kvm-irqfd-cleanup", WQ_PERCPU, 0);

	if (!irqfd_cleanup_wq)

		return -ENOMEM;