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bcachefs: bch2_kthread_io_clock_wait() no longer sleeps until full amount 

Drop t he loop in bch2_kthread_io_clock_wait(): this allows the code
that uses it to be woken up for other reasons, and fixes a bug where
rebalance wouldn't wake up when a scan was requested.

This raises the possibility of spurious wakeups, but callers should
always be able to handle that reasonably well.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-01-15 14:15:26 -05:00
parent 741c1d3ec1
commit d92b83f592
1 changed files with 2 additions and 2 deletions
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4
fs/bcachefs/clock.c
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@ -109,7 +109,7 @@ void bch2_kthread_io_clock_wait(struct io_clock *clock,
if (cpu_timeout != MAX_SCHEDULE_TIMEOUT)
mod_timer(&wait.cpu_timer, cpu_timeout + jiffies);
while (1) {
do {
set_current_state(TASK_INTERRUPTIBLE);
if (kthread && kthread_should_stop())
break;
@ -119,7 +119,7 @@ void bch2_kthread_io_clock_wait(struct io_clock *clock,
schedule();
try_to_freeze();
}
} while (0);
__set_current_state(TASK_RUNNING);
del_timer_sync(&wait.cpu_timer);