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27ce71e1ce
Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use 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. This change adds a new WQ_PERCPU flag at the network subsystem, to explicitly request the use of the per-CPU behavior. Both flags coexist for one release cycle to allow callers to transition their calls. Once migration is complete, WQ_UNBOUND can be removed and unbound will become the implicit 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. All existing users have been updated accordingly. Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Marco Crivellari <marco.crivellari@suse.com> Link: https://patch.msgid.link/20250918142427.309519-4-marco.crivellari@suse.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| crush | ||
| armor.c | ||
| auth_none.c | ||
| auth_none.h | ||
| auth_x_protocol.h | ||
| auth_x.c | ||
| auth_x.h | ||
| auth.c | ||
| buffer.c | ||
| ceph_common.c | ||
| ceph_hash.c | ||
| ceph_strings.c | ||
| cls_lock_client.c | ||
| crypto.c | ||
| crypto.h | ||
| debugfs.c | ||
| decode.c | ||
| Kconfig | ||
| Makefile | ||
| messenger_v1.c | ||
| messenger_v2.c | ||
| messenger.c | ||
| mon_client.c | ||
| msgpool.c | ||
| osd_client.c | ||
| osdmap.c | ||
| pagelist.c | ||
| pagevec.c | ||
| snapshot.c | ||
| string_table.c | ||
| striper.c | ||