Marco Crivellari 57565f97b0 scsi: fcoe: Add WQ_PERCPU to alloc_workqueue() users ... Currently if a user enqueues a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() uses WORK_CPU_UNBOUND (used when a CPU is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. alloc_workqueue() treats all queues as per-CPU by default, while unbound workqueues must opt-in via WQ_UNBOUND. This default is suboptimal: most workloads benefit from unbound queues, allowing the scheduler to place worker threads where they’re needed and reducing noise when CPUs are isolated. Continue the effort to refactor workqueue APIs, which has begun with the change introducing new workqueues and a new alloc_workqueue flag: commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag") Adds a new WQ_PERCPU flag to explicitly request alloc_workqueue() to be per-CPU when WQ_UNBOUND has not been specified. 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. Once migration is complete, WQ_UNBOUND can be removed and unbound will become the implicit default. Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Marco Crivellari <marco.crivellari@suse.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://patch.msgid.link/20251105150336.244079-1-marco.crivellari@suse.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2025-11-08 12:28:11 -05:00
..
Makefile	…
fcoe.c	…
fcoe.h	…
fcoe_ctlr.c	…
fcoe_sysfs.c	…
fcoe_transport.c	…
libfcoe.h	…