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wait: Introduce io_wait_event_killable() 

Add io_wait_event_killable(), a variant of wait_event_killable() that
uses io_schedule() instead of schedule(). This is to be used in
situation where waiting time is to be accounted as IO wait time.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Message-ID: <1b2870001ecd34fe6c05be2ddfefb3c798b11701.1769179462.git.repk@triplefau.lt>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This commit is contained in:
Remi Pommarel 2026-01-23 15:48:07 +01:00 committed by Dominique Martinet
parent 63804fed14
commit ca136b2553
1 changed files with 15 additions and 0 deletions
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15
include/linux/wait.h
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@ -937,6 +937,21 @@ extern int do_wait_intr_irq(wait_queue_head_t *, wait_queue_entry_t *);
__ret; \
})
#define __io_wait_event_killable(wq, condition) \
___wait_event(wq, condition, TASK_KILLABLE, 0, 0, io_schedule())
/*
* wait_event_killable() - link wait_event_killable but with io_schedule()
*/
#define io_wait_event_killable(wq_head, condition) \
({ \
int __ret = 0; \
might_sleep(); \
if (!(condition)) \
__ret = __io_wait_event_killable(wq_head, condition); \
__ret; \
})
#define __wait_event_state(wq, condition, state) \
___wait_event(wq, condition, state, 0, 0, schedule())