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sched/wait: Remove unused bit_wait_io_timeout

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bit_wait_io_timeout has been unused since 2016's
commit 6290602709 ("mm: add PageWaiters indicating tasks are waiting for a page bit")

Remove it.

Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20241001234016.231696-1-linux@treblig.org
This commit is contained in:
Dr. David Alan Gilbert 2024-10-02 00:40:16 +01:00 committed by Peter Zijlstra
parent b15148ce21
commit 0ac8f14ef2
2 changed files with 0 additions and 15 deletions
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1
include/linux/wait_bit.h
View File

@ -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(struct wait_bit_key *key, int mode);
extern int bit_wait_io(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_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 * wait_on_bit - wait for a bit to be cleared

14
kernel/sched/wait_bit.c
View File

@ -266,20 +266,6 @@ __sched int bit_wait_timeout(struct wait_bit_key *word, int mode)
} }
EXPORT_SYMBOL_GPL(bit_wait_timeout); 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) void __init wait_bit_init(void)
{ {
int i; int i;