}
while (uLeft) {
+ DEFINE_WAIT(wait);
+
while (write_sq.count >= write_sq.max_active) {
+ prepare_to_wait(&write_sq.action_queue, &wait, TASK_INTERRUPTIBLE);
sq_play();
- if (write_sq.non_blocking)
+ if (write_sq.non_blocking) {
+ finish_wait(&write_sq.action_queue, &wait);
return uWritten > 0 ? uWritten : -EAGAIN;
- SLEEP(write_sq.action_queue);
- if (signal_pending(current))
+ }
+ if (write_sq.count < write_sq.max_active)
+ break;
+
+ schedule_timeout(HZ);
+ if (signal_pending(current)) {
+ finish_wait(&write_sq.action_queue, &wait);
return uWritten > 0 ? uWritten : -EINTR;
+ }
}
+ finish_wait(&write_sq.action_queue, &wait);
+
/* Here, we can avoid disabling the interrupt by first
* copying and translating the data, and then updating
* the write_sq variables. Until this is done, the interrupt
if (file->f_flags & O_NONBLOCK)
return rc;
rc = -EINTR;
- while (sq->busy) {
- SLEEP(sq->open_queue);
- if (signal_pending(current))
- return rc;
- }
+ if (wait_event_interruptible(sq->open_queue, !sq->busy))
+ return rc;
rc = 0;
#else
/* OSS manual says we will return EBUSY regardless
sq_play(); /* there may be an incomplete frame waiting */
while (write_sq.active) {
- SLEEP(write_sq.sync_queue);
+ wait_event_interruptible_timeout(write_sq.sync_queue,
+ !write_sq.active, HZ);
if (signal_pending(current)) {
/* While waiting for audio output to drain, an
* interrupt occurred. Stop audio output immediately