Commit 0ac8f14e authored by Dr. David Alan Gilbert's avatar Dr. David Alan Gilbert Committed by Peter Zijlstra
Browse files

sched/wait: Remove unused bit_wait_io_timeout 



bit_wait_io_timeout has been unused since 2016's
commit 62906027 ("mm: add PageWaiters indicating tasks are waiting for a page bit")

Remove it.

Signed-off-by: default avatar"Dr. David Alan Gilbert" <linux@treblig.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20241001234016.231696-1-linux@treblig.org
parent b15148ce

include/linux/wait_bit.h

+0 −1
Original line number Diff line number Diff line
@@ -49,7 +49,6 @@ int wake_bit_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync 
extern int bit_wait(struct wait_bit_key *key, int mode);

extern int bit_wait_io(struct wait_bit_key *key, int mode);

extern int bit_wait_timeout(struct wait_bit_key *key, int mode);

extern int bit_wait_io_timeout(struct wait_bit_key *key, int mode);



/**

 * wait_on_bit - wait for a bit to be cleared

kernel/sched/wait_bit.c

+0 −14
Original line number Diff line number Diff line
@@ -266,20 +266,6 @@ __sched int bit_wait_timeout(struct wait_bit_key *word, int mode) 
}

EXPORT_SYMBOL_GPL(bit_wait_timeout);



__sched int bit_wait_io_timeout(struct wait_bit_key *word, int mode)

{

	unsigned long now = READ_ONCE(jiffies);



	if (time_after_eq(now, word->timeout))

		return -EAGAIN;

	io_schedule_timeout(word->timeout - now);

	if (signal_pending_state(mode, current))

		return -EINTR;



	return 0;

}

EXPORT_SYMBOL_GPL(bit_wait_io_timeout);



void __init wait_bit_init(void)

{

	int i;