1 files changed, 8 insertions, 41 deletions

diff --git a/block/blk-pm.c b/block/blk-pm.c
index 17bd020268d4..8d3e052f91da 100644
--- a/block/blk-pm.c
+++ b/block/blk-pm.c
@@ -1,11 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 
-#include <linux/blk-mq.h>
 #include <linux/blk-pm.h>
 #include <linux/blkdev.h>
 #include <linux/pm_runtime.h>
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 
 /**
  * blk_pm_runtime_init - Block layer runtime PM initialization routine
@@ -91,7 +89,7 @@ int blk_pre_runtime_suspend(struct request_queue *q)
 	if (percpu_ref_is_zero(&q->q_usage_counter))
 		ret = 0;
 	/* Switch q_usage_counter back to per-cpu mode. */
-	blk_mq_unfreeze_queue(q);
+	blk_mq_unfreeze_queue_nomemrestore(q);
 
 	if (ret < 0) {
 		spin_lock_irq(&q->queue_lock);
@@ -163,48 +161,17 @@ EXPORT_SYMBOL(blk_pre_runtime_resume);
 /**
  * blk_post_runtime_resume - Post runtime resume processing
  * @q: the queue of the device
- * @err: return value of the device's runtime_resume function
  *
  * Description:
- *    Update the queue's runtime status according to the return value of the
- *    device's runtime_resume function. If the resume was successful, call
- *    blk_set_runtime_active() to do the real work of restarting the queue.
+ *    Restart the queue of a runtime suspended device. It does this regardless
+ *    of whether the device's runtime-resume succeeded; even if it failed the
+ *    driver or error handler will need to communicate with the device.
  *
  *    This function should be called near the end of the device's
- *    runtime_resume callback.
+ *    runtime_resume callback to correct queue runtime PM status and re-enable
+ *    peeking requests from the queue.
  */
-void blk_post_runtime_resume(struct request_queue *q, int err)
-{
-	if (!q->dev)
-		return;
-	if (!err) {
-		blk_set_runtime_active(q);
-	} else {
-		spin_lock_irq(&q->queue_lock);
-		q->rpm_status = RPM_SUSPENDED;
-		spin_unlock_irq(&q->queue_lock);
-	}
-}
-EXPORT_SYMBOL(blk_post_runtime_resume);
-
-/**
- * blk_set_runtime_active - Force runtime status of the queue to be active
- * @q: the queue of the device
- *
- * If the device is left runtime suspended during system suspend the resume
- * hook typically resumes the device and corrects runtime status
- * accordingly. However, that does not affect the queue runtime PM status
- * which is still "suspended". This prevents processing requests from the
- * queue.
- *
- * This function can be used in driver's resume hook to correct queue
- * runtime PM status and re-enable peeking requests from the queue. It
- * should be called before first request is added to the queue.
- *
- * This function is also called by blk_post_runtime_resume() for successful
- * runtime resumes.  It does everything necessary to restart the queue.
- */
-void blk_set_runtime_active(struct request_queue *q)
+void blk_post_runtime_resume(struct request_queue *q)
 {
 	int old_status;
 
@@ -221,4 +188,4 @@ void blk_set_runtime_active(struct request_queue *q)
 	if (old_status != RPM_ACTIVE)
 		blk_clear_pm_only(q);
 }
-EXPORT_SYMBOL(blk_set_runtime_active);
+EXPORT_SYMBOL(blk_post_runtime_resume);