Now that the queue resources are allocated according to the size of the
queue, it is possible to allocate the queue to be an arbitrary size.
A side-effect is that deallocation of 'packed' resources must be done
before deallocation of the queue.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/card/block.c | 2 +-
drivers/mmc/card/queue.c | 11 ++++++++++-
drivers/mmc/card/queue.h | 2 +-
3 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 47835b78872f..f22df69823cc 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2467,9 +2467,9 @@ static void mmc_blk_remove_req(struct mmc_blk_data *md)
* from being accepted.
*/
card = md->queue.card;
- mmc_cleanup_queue(&md->queue);
if (md->flags & MMC_BLK_PACKED_CMD)
mmc_packed_clean(&md->queue);
+ mmc_cleanup_queue(&md->queue);
if (md->disk->flags & GENHD_FL_UP) {
device_remove_file(disk_to_dev(md->disk), &md->force_ro);
if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 1ea007f51ec9..50d7bf074887 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -275,7 +275,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
struct mmc_host *host = card->host;
u64 limit = BLK_BOUNCE_HIGH;
bool bounce = false;
- int ret;
+ int ret = -ENOMEM;
if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
@@ -286,6 +286,10 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
return -ENOMEM;
mq->qdepth = 2;
+ mq->mqrq = kcalloc(mq->qdepth, sizeof(struct mmc_queue_req),
+ GFP_KERNEL);
+ if (!mq->mqrq)
+ goto blk_cleanup;
mq->mqrq_cur = &mq->mqrq[0];
mq->mqrq_prev = &mq->mqrq[1];
mq->queue->queuedata = mq;
@@ -350,6 +354,9 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
cleanup_queue:
mmc_queue_reqs_free_bufs(mq);
+ kfree(mq->mqrq);
+ mq->mqrq = NULL;
+blk_cleanup:
blk_cleanup_queue(mq->queue);
return ret;
}
@@ -372,6 +379,8 @@ void mmc_cleanup_queue(struct mmc_queue *mq)
spin_unlock_irqrestore(q->queue_lock, flags);
mmc_queue_reqs_free_bufs(mq);
+ kfree(mq->mqrq);
+ mq->mqrq = NULL;
mq->card = NULL;
}
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 8a0a45e5650d..f17f5e505059 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -61,7 +61,7 @@ struct mmc_queue {
bool asleep;
struct mmc_blk_data *blkdata;
struct request_queue *queue;
- struct mmc_queue_req mqrq[2];
+ struct mmc_queue_req *mqrq;
struct mmc_queue_req *mqrq_cur;
struct mmc_queue_req *mqrq_prev;
int qdepth;
--
1.9.1
--
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