diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-11-06 21:49:33 +0300 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-11-06 21:49:33 +0300 |
commit | 7f9f879243d6cf5d2d60d12065e93189cc343387 (patch) | |
tree | e74619a16f8291f7225ee9877cf93e530243e0d3 /kernel/kthread.c | |
parent | 32f7aa2731b24ad8393f26d63df959d74844345f (diff) | |
parent | fe91c4725aeed35023ba4f7a1e1adfebb6878c23 (diff) | |
download | linux-7f9f879243d6cf5d2d60d12065e93189cc343387.tar.xz |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up some tools/perf/ patches that went via tip/perf/core, such
as:
tools/perf: Add mem_hops field in perf_mem_data_src structure
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'kernel/kthread.c')
-rw-r--r-- | kernel/kthread.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index 5b37a8567168..4a4d7092a2d8 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -270,6 +270,7 @@ EXPORT_SYMBOL_GPL(kthread_parkme); static int kthread(void *_create) { + static const struct sched_param param = { .sched_priority = 0 }; /* Copy data: it's on kthread's stack */ struct kthread_create_info *create = _create; int (*threadfn)(void *data) = create->threadfn; @@ -300,6 +301,13 @@ static int kthread(void *_create) init_completion(&self->parked); current->vfork_done = &self->exited; + /* + * The new thread inherited kthreadd's priority and CPU mask. Reset + * back to default in case they have been changed. + */ + sched_setscheduler_nocheck(current, SCHED_NORMAL, ¶m); + set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_KTHREAD)); + /* OK, tell user we're spawned, wait for stop or wakeup */ __set_current_state(TASK_UNINTERRUPTIBLE); create->result = current; @@ -397,7 +405,6 @@ struct task_struct *__kthread_create_on_node(int (*threadfn)(void *data), } task = create->result; if (!IS_ERR(task)) { - static const struct sched_param param = { .sched_priority = 0 }; char name[TASK_COMM_LEN]; /* @@ -406,13 +413,6 @@ struct task_struct *__kthread_create_on_node(int (*threadfn)(void *data), */ vsnprintf(name, sizeof(name), namefmt, args); set_task_comm(task, name); - /* - * root may have changed our (kthreadd's) priority or CPU mask. - * The kernel thread should not inherit these properties. - */ - sched_setscheduler_nocheck(task, SCHED_NORMAL, ¶m); - set_cpus_allowed_ptr(task, - housekeeping_cpumask(HK_FLAG_KTHREAD)); } kfree(create); return task; |