queue_flag_set(QUEUE_FLAG_DEAD, q);
spin_unlock_irq(lock);
+ /*
+ * make sure all in-progress dispatch are completed because
+ * blk_freeze_queue() can only complete all requests, and
+ * dispatch may still be in-progress since we dispatch requests
+ * from more than one contexts
+ */
+ if (q->mq_ops)
+ blk_mq_quiesce_queue(q);
+
/* for synchronous bio-based driver finish in-flight integrity i/o */
blk_flush_integrity();
while (true) {
bool success = false;
- int ret;
- rcu_read_lock_sched();
+ rcu_read_lock();
if (percpu_ref_tryget_live(&q->q_usage_counter)) {
/*
* The code that sets the PREEMPT_ONLY flag is
percpu_ref_put(&q->q_usage_counter);
}
}
- rcu_read_unlock_sched();
+ rcu_read_unlock();
if (success)
return 0;
*/
smp_rmb();
- ret = wait_event_interruptible(q->mq_freeze_wq,
- (atomic_read(&q->mq_freeze_depth) == 0 &&
- (preempt || !blk_queue_preempt_only(q))) ||
- blk_queue_dying(q));
+ wait_event(q->mq_freeze_wq,
+ (atomic_read(&q->mq_freeze_depth) == 0 &&
+ (preempt || !blk_queue_preempt_only(q))) ||
+ blk_queue_dying(q));
if (blk_queue_dying(q))
return -ENODEV;
- if (ret)
- return ret;
}
}
unsigned int count;
if (unlikely(bio_op(bio) == REQ_OP_WRITE_SAME))
- count = queue_logical_block_size(bio->bi_disk->queue);
+ count = queue_logical_block_size(bio->bi_disk->queue) >> 9;
else
count = bio_sectors(bio);
{
if (bio_has_data(bio))
rq->nr_phys_segments = bio_phys_segments(q, bio);
+ else if (bio_op(bio) == REQ_OP_DISCARD)
+ rq->nr_phys_segments = 1;
rq->__data_len = bio->bi_iter.bi_size;
rq->bio = rq->biotail = bio;
dst->cpu = src->cpu;
dst->__sector = blk_rq_pos(src);
dst->__data_len = blk_rq_bytes(src);
+ if (src->rq_flags & RQF_SPECIAL_PAYLOAD) {
+ dst->rq_flags |= RQF_SPECIAL_PAYLOAD;
+ dst->special_vec = src->special_vec;
+ }
dst->nr_phys_segments = src->nr_phys_segments;
dst->ioprio = src->ioprio;
dst->extra_len = src->extra_len;