diff options
| author | Marco Crivellari <marco.crivellari@suse.com> | 2026-02-23 10:29:19 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-04-17 14:38:22 -0600 |
| commit | 98236343bb5dbbf3fcb3260795be2bbb1e3d2001 (patch) | |
| tree | 89c9f884dcd9b3efcefcec301c03b0e023ba24e0 | |
| parent | 41c665aae2b5dbecddddcc8ace344caf630cc7a4 (diff) | |
block: 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.
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20260223092920.60424-2-marco.crivellari@suse.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/bio-integrity-auto.c | 2 | ||||
| -rw-r--r-- | block/bio.c | 2 | ||||
| -rw-r--r-- | block/blk-core.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/block/bio-integrity-auto.c b/block/bio-integrity-auto.c index ebd17f47e0f9..353eed632fcc 100644 --- a/block/bio-integrity-auto.c +++ b/block/bio-integrity-auto.c @@ -125,7 +125,7 @@ static int __init blk_integrity_auto_init(void) * Make it highpri CPU intensive wq with max concurrency of 1. */ kintegrityd_wq = alloc_workqueue("kintegrityd", WQ_MEM_RECLAIM | - WQ_HIGHPRI | WQ_CPU_INTENSIVE, 1); + WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_PERCPU, 1); if (!kintegrityd_wq) panic("Failed to create kintegrityd\n"); return 0; diff --git a/block/bio.c b/block/bio.c index c52a0bd1e899..4d46af0cd256 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1958,7 +1958,7 @@ int bioset_init(struct bio_set *bs, if (flags & BIOSET_NEED_RESCUER) { bs->rescue_workqueue = alloc_workqueue("bioset", - WQ_MEM_RECLAIM, 0); + WQ_MEM_RECLAIM | WQ_PERCPU, 0); if (!bs->rescue_workqueue) goto bad; } diff --git a/block/blk-core.c b/block/blk-core.c index 474700ffaa1c..17450058ea6d 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1282,7 +1282,7 @@ int __init blk_dev_init(void) /* used for unplugging and affects IO latency/throughput - HIGHPRI */ kblockd_workqueue = alloc_workqueue("kblockd", - WQ_MEM_RECLAIM | WQ_HIGHPRI, 0); + WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_PERCPU, 0); if (!kblockd_workqueue) panic("Failed to create kblockd\n"); |