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| author | Peter Zijlstra <peterz@infradead.org> | 2022-08-22 13:18:20 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-07 21:53:49 +0200 |
| commit | 929659acea03db6411a32de9037abab9f856f586 (patch) | |
| tree | 183437b9602b803d32ef0ee4e96d55e17691264c /kernel | |
| parent | f9fc8cad9728124cefe8844fb53d1814c92c6bfc (diff) | |
| download | lwn-929659acea03db6411a32de9037abab9f856f586.tar.gz lwn-929659acea03db6411a32de9037abab9f856f586.zip | |
sched/completion: Add wait_for_completion_state()
Allows waiting with a custom @state.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20220822114648.922711674@infradead.org
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/completion.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c index 35f15c26ed54..d57a5c1c1cd9 100644 --- a/kernel/sched/completion.c +++ b/kernel/sched/completion.c @@ -204,6 +204,7 @@ EXPORT_SYMBOL(wait_for_completion_io_timeout); int __sched wait_for_completion_interruptible(struct completion *x) { long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE); + if (t == -ERESTARTSYS) return t; return 0; @@ -241,12 +242,23 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout); int __sched wait_for_completion_killable(struct completion *x) { long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE); + if (t == -ERESTARTSYS) return t; return 0; } EXPORT_SYMBOL(wait_for_completion_killable); +int __sched wait_for_completion_state(struct completion *x, unsigned int state) +{ + long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, state); + + if (t == -ERESTARTSYS) + return t; + return 0; +} +EXPORT_SYMBOL(wait_for_completion_state); + /** * wait_for_completion_killable_timeout: - waits for completion of a task (w/(to,killable)) * @x: holds the state of this particular completion |