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treewide: Introduce kthread_run_worker[_on_cpu]()

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kthread_create() creates a kthread without running it yet. kthread_run()
creates a kthread and runs it.

On the other hand, kthread_create_worker() creates a kthread worker and
runs it.

This difference in behaviours is confusing. Also there is no way to
create a kthread worker and affine it using kthread_bind_mask() or
kthread_affine_preferred() before starting it.

Consolidate the behaviours and introduce kthread_run_worker[_on_cpu]()
that behaves just like kthread_run(). kthread_create_worker[_on_cpu]()
will now only create a kthread worker without starting it.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
This commit is contained in:
Frederic Weisbecker
2024-09-27 00:49:07 +02:00
parent 41f70d8e16
commit b04e317b52
33 changed files with 83 additions and 66 deletions
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8
drivers/gpu/drm/i915/selftests/i915_request.c
View File

@@ -492,7 +492,7 @@ static int mock_breadcrumbs_smoketest(void *arg)
for (n = 0; n < ncpus; n++) {
struct kthread_worker *worker;
worker = kthread_create_worker(0, "igt/%d", n);
worker = kthread_run_worker(0, "igt/%d", n);
if (IS_ERR(worker)) {
ret = PTR_ERR(worker);
ncpus = n;
@@ -1645,7 +1645,7 @@ static int live_parallel_engines(void *arg)
for_each_uabi_engine(engine, i915) {
struct kthread_worker *worker;
worker = kthread_create_worker(0, "igt/parallel:%s",
worker = kthread_run_worker(0, "igt/parallel:%s",
engine->name);
if (IS_ERR(worker)) {
err = PTR_ERR(worker);
@@ -1806,7 +1806,7 @@ static int live_breadcrumbs_smoketest(void *arg)
unsigned int i = idx * ncpus + n;
struct kthread_worker *worker;
worker = kthread_create_worker(0, "igt/%d.%d", idx, n);
worker = kthread_run_worker(0, "igt/%d.%d", idx, n);
if (IS_ERR(worker)) {
ret = PTR_ERR(worker);
goto out_flush;
@@ -3219,7 +3219,7 @@ static int perf_parallel_engines(void *arg)
memset(&engines[idx].p, 0, sizeof(engines[idx].p));
worker = kthread_create_worker(0, "igt:%s",
worker = kthread_run_worker(0, "igt:%s",
engine->name);
if (IS_ERR(worker)) {
err = PTR_ERR(worker);