[13/16] mmc: simplify queue initialization
diff mbox series

Message ID 20181114160219.28328-14-hch@lst.de
State New
Headers show
Series
  • [01/16] block: remove QUEUE_FLAG_BYPASS and ->bypass
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Commit Message

Christoph Hellwig Nov. 14, 2018, 4:02 p.m. UTC
Merge three functions initializing the queue into a single one, and drop
an unused argument for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/mmc/core/block.c |  2 +-
 drivers/mmc/core/queue.c | 86 ++++++++++++++--------------------------
 drivers/mmc/core/queue.h |  3 +-
 3 files changed, 32 insertions(+), 59 deletions(-)

Comments

Ulf Hansson Nov. 14, 2018, 5:31 p.m. UTC | #1
On 14 November 2018 at 17:02, Christoph Hellwig <hch@lst.de> wrote:
> Merge three functions initializing the queue into a single one, and drop
> an unused argument for it.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/mmc/core/block.c |  2 +-
>  drivers/mmc/core/queue.c | 86 ++++++++++++++--------------------------
>  drivers/mmc/core/queue.h |  3 +-
>  3 files changed, 32 insertions(+), 59 deletions(-)
>
> diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
> index c35b5b08bb33..27606e1382e5 100644
> --- a/drivers/mmc/core/block.c
> +++ b/drivers/mmc/core/block.c
> @@ -2334,7 +2334,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
>         INIT_LIST_HEAD(&md->rpmbs);
>         md->usage = 1;
>
> -       ret = mmc_init_queue(&md->queue, card, &md->lock, subname);
> +       ret = mmc_init_queue(&md->queue, card, &md->lock);
>         if (ret)
>                 goto err_putdisk;
>
> diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
> index 6edffeed9953..37617fb1f9de 100644
> --- a/drivers/mmc/core/queue.c
> +++ b/drivers/mmc/core/queue.c
> @@ -378,14 +378,38 @@ static void mmc_setup_queue(struct mmc_queue *mq, struct mmc_card *card)
>         init_waitqueue_head(&mq->wait);
>  }
>
> -static int mmc_mq_init_queue(struct mmc_queue *mq, int q_depth,
> -                            const struct blk_mq_ops *mq_ops, spinlock_t *lock)
> +/* Set queue depth to get a reasonable value for q->nr_requests */
> +#define MMC_QUEUE_DEPTH 64
> +
> +/**
> + * mmc_init_queue - initialise a queue structure.
> + * @mq: mmc queue
> + * @card: mmc card to attach this queue
> + * @lock: queue lock
> + * @subname: partition subname

Drop subname :-)

> + *
> + * Initialise a MMC card request queue.
> + */
> +int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
> +                  spinlock_t *lock)
>  {

[...]

A very nice cleanup, thanks!

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

Kind regards
Uffe
Hannes Reinecke Nov. 15, 2018, 7 a.m. UTC | #2
On 11/14/18 5:02 PM, Christoph Hellwig wrote:
> Merge three functions initializing the queue into a single one, and drop
> an unused argument for it.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   drivers/mmc/core/block.c |  2 +-
>   drivers/mmc/core/queue.c | 86 ++++++++++++++--------------------------
>   drivers/mmc/core/queue.h |  3 +-
>   3 files changed, 32 insertions(+), 59 deletions(-)
> Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
Christoph Hellwig Nov. 15, 2018, 9:02 a.m. UTC | #3
On Wed, Nov 14, 2018 at 06:31:45PM +0100, Ulf Hansson wrote:
> > + * @subname: partition subname
> 
> Drop subname :-)

Fixed.

Patch
diff mbox series

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index c35b5b08bb33..27606e1382e5 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2334,7 +2334,7 @@  static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 	INIT_LIST_HEAD(&md->rpmbs);
 	md->usage = 1;
 
-	ret = mmc_init_queue(&md->queue, card, &md->lock, subname);
+	ret = mmc_init_queue(&md->queue, card, &md->lock);
 	if (ret)
 		goto err_putdisk;
 
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 6edffeed9953..37617fb1f9de 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -378,14 +378,38 @@  static void mmc_setup_queue(struct mmc_queue *mq, struct mmc_card *card)
 	init_waitqueue_head(&mq->wait);
 }
 
-static int mmc_mq_init_queue(struct mmc_queue *mq, int q_depth,
-			     const struct blk_mq_ops *mq_ops, spinlock_t *lock)
+/* Set queue depth to get a reasonable value for q->nr_requests */
+#define MMC_QUEUE_DEPTH 64
+
+/**
+ * mmc_init_queue - initialise a queue structure.
+ * @mq: mmc queue
+ * @card: mmc card to attach this queue
+ * @lock: queue lock
+ * @subname: partition subname
+ *
+ * Initialise a MMC card request queue.
+ */
+int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
+		   spinlock_t *lock)
 {
+	struct mmc_host *host = card->host;
 	int ret;
 
+	mq->card = card;
+	mq->use_cqe = host->cqe_enabled;
+
 	memset(&mq->tag_set, 0, sizeof(mq->tag_set));
-	mq->tag_set.ops = mq_ops;
-	mq->tag_set.queue_depth = q_depth;
+	mq->tag_set.ops = &mmc_mq_ops;
+	/*
+	 * The queue depth for CQE must match the hardware because the request
+	 * tag is used to index the hardware queue.
+	 */
+	if (mq->use_cqe)
+		mq->tag_set.queue_depth =
+			min_t(int, card->ext_csd.cmdq_depth, host->cqe_qdepth);
+	else
+		mq->tag_set.queue_depth = MMC_QUEUE_DEPTH;
 	mq->tag_set.numa_node = NUMA_NO_NODE;
 	mq->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE |
 			    BLK_MQ_F_BLOCKING;
@@ -405,66 +429,16 @@  static int mmc_mq_init_queue(struct mmc_queue *mq, int q_depth,
 
 	mq->queue->queue_lock = lock;
 	mq->queue->queuedata = mq;
+	blk_queue_rq_timeout(mq->queue, 60 * HZ);
 
+	mmc_setup_queue(mq, card);
 	return 0;
 
 free_tag_set:
 	blk_mq_free_tag_set(&mq->tag_set);
-
 	return ret;
 }
 
-/* Set queue depth to get a reasonable value for q->nr_requests */
-#define MMC_QUEUE_DEPTH 64
-
-static int mmc_mq_init(struct mmc_queue *mq, struct mmc_card *card,
-			 spinlock_t *lock)
-{
-	struct mmc_host *host = card->host;
-	int q_depth;
-	int ret;
-
-	/*
-	 * The queue depth for CQE must match the hardware because the request
-	 * tag is used to index the hardware queue.
-	 */
-	if (mq->use_cqe)
-		q_depth = min_t(int, card->ext_csd.cmdq_depth, host->cqe_qdepth);
-	else
-		q_depth = MMC_QUEUE_DEPTH;
-
-	ret = mmc_mq_init_queue(mq, q_depth, &mmc_mq_ops, lock);
-	if (ret)
-		return ret;
-
-	blk_queue_rq_timeout(mq->queue, 60 * HZ);
-
-	mmc_setup_queue(mq, card);
-
-	return 0;
-}
-
-/**
- * mmc_init_queue - initialise a queue structure.
- * @mq: mmc queue
- * @card: mmc card to attach this queue
- * @lock: queue lock
- * @subname: partition subname
- *
- * Initialise a MMC card request queue.
- */
-int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
-		   spinlock_t *lock, const char *subname)
-{
-	struct mmc_host *host = card->host;
-
-	mq->card = card;
-
-	mq->use_cqe = host->cqe_enabled;
-
-	return mmc_mq_init(mq, card, lock);
-}
-
 void mmc_queue_suspend(struct mmc_queue *mq)
 {
 	blk_mq_quiesce_queue(mq->queue);
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 9bf3c9245075..29218e12900d 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -95,8 +95,7 @@  struct mmc_queue {
 	struct work_struct	complete_work;
 };
 
-extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
-			  const char *);
+extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);
 extern void mmc_cleanup_queue(struct mmc_queue *);
 extern void mmc_queue_suspend(struct mmc_queue *);
 extern void mmc_queue_resume(struct mmc_queue *);