mmc: queue: append partition subname to queue thread name

For example, an eMMC with 2 boot partitions will have 3 threads.
The names change from:

   40 ?        00:00:00 mmcqd/0
   41 ?        00:00:00 mmcqd/0
   42 ?        00:00:00 mmcqd/0

to:

   40 ?        00:00:00 mmcqd/0
   41 ?        00:00:00 mmcqd/0boot0
   42 ?        00:00:00 mmcqd/0boot1

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 77cd083..f85e422 100644 (file)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1024,7 +1024,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
        INIT_LIST_HEAD(&md->part);
        md->usage = 1;
 
-       ret = mmc_init_queue(&md->queue, card, &md->lock);
+       ret = mmc_init_queue(&md->queue, card, &md->lock, subname);
        if (ret)
                goto err_putdisk;
 

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index c07322c..3e2db1c 100644 (file)
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -106,10 +106,12 @@ static void mmc_request(struct request_queue *q)
  * @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)
+int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
+                  spinlock_t *lock, const char *subname)
 {
        struct mmc_host *host = card->host;
        u64 limit = BLK_BOUNCE_HIGH;
@@ -209,8 +211,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
 
        sema_init(&mq->thread_sem, 1);
 
-       mq->thread = kthread_run(mmc_queue_thread, mq, "mmcqd/%d",
-               host->index);
+       mq->thread = kthread_run(mmc_queue_thread, mq, "mmcqd/%d%s",
+               host->index, subname ? subname : "");
 
        if (IS_ERR(mq->thread)) {
                ret = PTR_ERR(mq->thread);

diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 64e66e0..6223ef8 100644 (file)
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -19,7 +19,8 @@ struct mmc_queue {
        unsigned int            bounce_sg_len;
 };
 
-extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);
+extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
+                         const char *);
 extern void mmc_cleanup_queue(struct mmc_queue *);
 extern void mmc_queue_suspend(struct mmc_queue *);
 extern void mmc_queue_resume(struct mmc_queue *);