Commit c8864cb7 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'for-linus-20190202' of git://git.kernel.dk/linux-block 

Pull block fixes from Jens Axboe:
 "A few fixes that should go into this release. This contains:

   - MD pull request from Song, fixing a recovery OOM issue (Alexei)

   - Fix for a sync related stall (Jianchao)

   - Dummy callback for timeouts (Tetsuo)

   - IDE atapi sense ordering fix (me)"

* tag 'for-linus-20190202' of git://git.kernel.dk/linux-block:
  ide: ensure atapi sense request aren't preempted
  blk-mq: fix a hung issue when fsync
  block: pass no-op callback to INIT_WORK().
  md/raid5: fix 'out of memory' during raid cache recovery
parents 3cde55ee 9a6d5488

block/blk-core.c

+5 −1
Original line number Diff line number Diff line
@@ -462,6 +462,10 @@ static void blk_rq_timed_out_timer(struct timer_list *t) 
	kblockd_schedule_work(&q->timeout_work);

}



static void blk_timeout_work(struct work_struct *work)

{

}



/**

 * blk_alloc_queue_node - allocate a request queue

 * @gfp_mask: memory allocation flags
@@ -505,7 +509,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) 
	timer_setup(&q->backing_dev_info->laptop_mode_wb_timer,

		    laptop_mode_timer_fn, 0);

	timer_setup(&q->timeout, blk_rq_timed_out_timer, 0);

	INIT_WORK(&q->timeout_work, NULL);

	INIT_WORK(&q->timeout_work, blk_timeout_work);

	INIT_LIST_HEAD(&q->icq_list);

#ifdef CONFIG_BLK_CGROUP

	INIT_LIST_HEAD(&q->blkg_list);

block/blk-flush.c

+1 −1
Original line number Diff line number Diff line
@@ -335,7 +335,7 @@ static void mq_flush_data_end_io(struct request *rq, blk_status_t error) 
	blk_flush_complete_seq(rq, fq, REQ_FSEQ_DATA, error);

	spin_unlock_irqrestore(&fq->mq_flush_lock, flags);



	blk_mq_run_hw_queue(hctx, true);

	blk_mq_sched_restart(hctx);

}



/**

drivers/ide/ide-atapi.c

+8 −1
Original line number Diff line number Diff line
@@ -235,21 +235,28 @@ EXPORT_SYMBOL_GPL(ide_prep_sense); 


int ide_queue_sense_rq(ide_drive_t *drive, void *special)

{

	struct request *sense_rq = drive->sense_rq;

	ide_hwif_t *hwif = drive->hwif;

	struct request *sense_rq;

	unsigned long flags;



	spin_lock_irqsave(&hwif->lock, flags);



	/* deferred failure from ide_prep_sense() */

	if (!drive->sense_rq_armed) {

		printk(KERN_WARNING PFX "%s: error queuing a sense request\n",

		       drive->name);

		spin_unlock_irqrestore(&hwif->lock, flags);

		return -ENOMEM;

	}



	sense_rq = drive->sense_rq;

	ide_req(sense_rq)->special = special;

	drive->sense_rq_armed = false;



	drive->hwif->rq = NULL;



	ide_insert_request_head(drive, sense_rq);

	spin_unlock_irqrestore(&hwif->lock, flags);

	return 0;

}

EXPORT_SYMBOL_GPL(ide_queue_sense_rq);

drivers/ide/ide-io.c

+31 −30
Original line number Diff line number Diff line
@@ -68,8 +68,10 @@ int ide_end_rq(ide_drive_t *drive, struct request *rq, blk_status_t error, 
	}



	if (!blk_update_request(rq, error, nr_bytes)) {

		if (rq == drive->sense_rq)

		if (rq == drive->sense_rq) {

			drive->sense_rq = NULL;

			drive->sense_rq_active = false;

		}



		__blk_mq_end_request(rq, error);

		return 0;
@@ -451,16 +453,11 @@ void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) 
		blk_mq_delay_run_hw_queue(q->queue_hw_ctx[0], 3);

}



/*

 * Issue a new request to a device.

 */

blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx,

			  const struct blk_mq_queue_data *bd)

blk_status_t ide_issue_rq(ide_drive_t *drive, struct request *rq,

			  bool local_requeue)

{

	ide_drive_t	*drive = hctx->queue->queuedata;

	ide_hwif_t *hwif = drive->hwif;

	struct ide_host *host = hwif->host;

	struct request	*rq = bd->rq;

	ide_startstop_t	startstop;



	if (!blk_rq_is_passthrough(rq) && !(rq->rq_flags & RQF_DONTPREP)) {
@@ -474,8 +471,6 @@ blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx, 
	if (ide_lock_host(host, hwif))

		return BLK_STS_DEV_RESOURCE;



	blk_mq_start_request(rq);



	spin_lock_irq(&hwif->lock);



	if (!ide_lock_port(hwif)) {
@@ -510,18 +505,6 @@ repeat: 
		hwif->cur_dev = drive;

		drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED);



		/*

		 * we know that the queue isn't empty, but this can happen

		 * if ->prep_rq() decides to kill a request

		 */

		if (!rq) {

			rq = bd->rq;

			if (!rq) {

				ide_unlock_port(hwif);

				goto out;

			}

		}



		/*

		 * Sanity: don't accept a request that isn't a PM request

		 * if we are currently power managed. This is very important as
@@ -560,8 +543,11 @@ repeat: 
		}

	} else {

plug_device:

		if (local_requeue)

			list_add(&rq->queuelist, &drive->rq_list);

		spin_unlock_irq(&hwif->lock);

		ide_unlock_host(host);

		if (!local_requeue)

			ide_requeue_and_plug(drive, rq);

		return BLK_STS_OK;

	}
@@ -573,6 +559,26 @@ out: 
	return BLK_STS_OK;

}



/*

 * Issue a new request to a device.

 */

blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx,

			  const struct blk_mq_queue_data *bd)

{

	ide_drive_t *drive = hctx->queue->queuedata;

	ide_hwif_t *hwif = drive->hwif;



	spin_lock_irq(&hwif->lock);

	if (drive->sense_rq_active) {

		spin_unlock_irq(&hwif->lock);

		return BLK_STS_DEV_RESOURCE;

	}

	spin_unlock_irq(&hwif->lock);



	blk_mq_start_request(bd->rq);

	return ide_issue_rq(drive, bd->rq, false);

}



static int drive_is_ready(ide_drive_t *drive)

{

	ide_hwif_t *hwif = drive->hwif;
@@ -893,13 +899,8 @@ EXPORT_SYMBOL_GPL(ide_pad_transfer); 


void ide_insert_request_head(ide_drive_t *drive, struct request *rq)

{

	ide_hwif_t *hwif = drive->hwif;

	unsigned long flags;



	spin_lock_irqsave(&hwif->lock, flags);

	drive->sense_rq_active = true;

	list_add_tail(&rq->queuelist, &drive->rq_list);

	spin_unlock_irqrestore(&hwif->lock, flags);



	kblockd_schedule_work(&drive->rq_work);

}

EXPORT_SYMBOL_GPL(ide_insert_request_head);

drivers/ide/ide-park.c

+2 −0
Original line number Diff line number Diff line
@@ -54,7 +54,9 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) 
	scsi_req(rq)->cmd[0] = REQ_UNPARK_HEADS;

	scsi_req(rq)->cmd_len = 1;

	ide_req(rq)->type = ATA_PRIV_MISC;

	spin_lock_irq(&hwif->lock);

	ide_insert_request_head(drive, rq);

	spin_unlock_irq(&hwif->lock);



out:

	return;

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