From: Marco Crivellari Date: Tue, 5 May 2026 12:40:57 +0000 (+0200) Subject: virt: acrn: Add WQ_PERCPU to alloc_workqueue users X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=bc7a5b645ca60b4067b51cda1d4a0f0bf5616169;p=thirdparty%2Fkernel%2Flinux.git virt: acrn: Add WQ_PERCPU to alloc_workqueue users This continues the effort to refactor workqueue APIs, which began with the introduction of new workqueues and a new alloc_workqueue flag in: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") The refactoring is going to alter the default behavior of alloc_workqueue() to be unbound by default. With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND), any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND must now use WQ_PERCPU. For more details see the Link tag below. In order to keep alloc_workqueue() behavior identical, explicitly request WQ_PERCPU. Cc: Fei Li Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/ Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Signed-off-by: Tejun Heo --- diff --git a/drivers/virt/acrn/irqfd.c b/drivers/virt/acrn/irqfd.c index acf8cd5f8f8c2..aab15f94166ae 100644 --- a/drivers/virt/acrn/irqfd.c +++ b/drivers/virt/acrn/irqfd.c @@ -206,7 +206,7 @@ int acrn_irqfd_init(struct acrn_vm *vm) { INIT_LIST_HEAD(&vm->irqfds); mutex_init(&vm->irqfds_lock); - vm->irqfd_wq = alloc_workqueue("acrn_irqfd-%u", 0, 0, vm->vmid); + vm->irqfd_wq = alloc_workqueue("acrn_irqfd-%u", WQ_PERCPU, 0, vm->vmid); if (!vm->irqfd_wq) return -ENOMEM;