This reverts commit "block: blk-mq: Use swait". The issue remains but
will be fixed differently.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
block/blk-core.c | 6 +++---
block/blk-mq.c | 8 ++++----
include/linux/blkdev.h | 2 +-
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index ff1258ca236c..f9ac6f169c67 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -799,7 +799,7 @@ int blk_queue_enter(struct request_queue *q, bool nowait)
*/
smp_rmb();
- ret = swait_event_interruptible(q->mq_freeze_wq,
+ ret = wait_event_interruptible(q->mq_freeze_wq,
!atomic_read(&q->mq_freeze_depth) ||
blk_queue_dying(q));
if (blk_queue_dying(q))
@@ -819,7 +819,7 @@ static void blk_queue_usage_counter_release(struct percpu_ref *ref)
struct request_queue *q =
container_of(ref, struct request_queue, q_usage_counter);
- swake_up_all(&q->mq_freeze_wq);
+ wake_up_all(&q->mq_freeze_wq);
}
static void blk_rq_timed_out_timer(unsigned long data)
@@ -895,7 +895,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
q->bypass_depth = 1;
__set_bit(QUEUE_FLAG_BYPASS, &q->queue_flags);
- init_swait_queue_head(&q->mq_freeze_wq);
+ init_waitqueue_head(&q->mq_freeze_wq);
/*
* Init percpu_ref in atomic mode so that it's faster to shutdown.
diff --git a/block/blk-mq.c b/block/blk-mq.c
index bbe43d32f71a..c5bd467dd97b 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -132,14 +132,14 @@ EXPORT_SYMBOL_GPL(blk_freeze_queue_start);
void blk_mq_freeze_queue_wait(struct request_queue *q)
{
- swait_event(q->mq_freeze_wq, percpu_ref_is_zero(&q->q_usage_counter));
+ wait_event(q->mq_freeze_wq, percpu_ref_is_zero(&q->q_usage_counter));
}
EXPORT_SYMBOL_GPL(blk_mq_freeze_queue_wait);
int blk_mq_freeze_queue_wait_timeout(struct request_queue *q,
unsigned long timeout)
{
- return swait_event_timeout(q->mq_freeze_wq,
+ return wait_event_timeout(q->mq_freeze_wq,
percpu_ref_is_zero(&q->q_usage_counter),
timeout);
}
@@ -182,7 +182,7 @@ void blk_mq_unfreeze_queue(struct request_queue *q)
WARN_ON_ONCE(freeze_depth < 0);
if (!freeze_depth) {
percpu_ref_reinit(&q->q_usage_counter);
- swake_up_all(&q->mq_freeze_wq);
+ wake_up_all(&q->mq_freeze_wq);
}
}
EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue);
@@ -263,7 +263,7 @@ void blk_mq_wake_waiters(struct request_queue *q)
* dying, we need to ensure that processes currently waiting on
* the queue are notified as well.
*/
- swake_up_all(&q->mq_freeze_wq);
+ wake_up_all(&q->mq_freeze_wq);
}
bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 6f278f1fd634..b68752bfb645 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -598,7 +598,7 @@ struct request_queue {
struct throtl_data *td;
#endif
struct rcu_head rcu_head;
- struct swait_queue_head mq_freeze_wq;
+ wait_queue_head_t mq_freeze_wq;
struct percpu_ref q_usage_counter;
struct list_head all_q_node;
--
2.16.2
--
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