diff options
Diffstat (limited to 'drivers/mmc/card/queue.c')
| -rw-r--r-- | drivers/mmc/card/queue.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index d6ded247d941..4e42d030e097 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -30,9 +30,9 @@ static int mmc_prep_request(struct request_queue *q, struct request *req) { /* - * We only like normal block requests. + * We only like normal block requests and discards. */ - if (!blk_fs_request(req)) { + if (req->cmd_type != REQ_TYPE_FS && !(req->cmd_flags & REQ_DISCARD)) { blk_dump_rq_flags(req, "MMC bad request"); return BLKPREP_KILL; } @@ -128,11 +128,25 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock mq->req = NULL; blk_queue_prep_rq(mq->queue, mmc_prep_request); - blk_queue_ordered(mq->queue, QUEUE_ORDERED_DRAIN, NULL); queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue); + if (mmc_can_erase(card)) { + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mq->queue); + mq->queue->limits.max_discard_sectors = UINT_MAX; + if (card->erased_byte == 0) + mq->queue->limits.discard_zeroes_data = 1; + if (!mmc_can_trim(card) && is_power_of_2(card->erase_size)) { + mq->queue->limits.discard_granularity = + card->erase_size << 9; + mq->queue->limits.discard_alignment = + card->erase_size << 9; + } + if (mmc_can_secure_erase_trim(card)) + queue_flag_set_unlocked(QUEUE_FLAG_SECDISCARD, + mq->queue); + } #ifdef CONFIG_MMC_BLOCK_BOUNCE - if (host->max_hw_segs == 1) { + if (host->max_segs == 1) { unsigned int bouncesz; bouncesz = MMC_QUEUE_BOUNCESZ; @@ -182,21 +196,23 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock blk_queue_bounce_limit(mq->queue, limit); blk_queue_max_hw_sectors(mq->queue, min(host->max_blk_count, host->max_req_size / 512)); - blk_queue_max_segments(mq->queue, host->max_hw_segs); + blk_queue_max_segments(mq->queue, host->max_segs); blk_queue_max_segment_size(mq->queue, host->max_seg_size); mq->sg = kmalloc(sizeof(struct scatterlist) * - host->max_phys_segs, GFP_KERNEL); + host->max_segs, GFP_KERNEL); if (!mq->sg) { ret = -ENOMEM; goto cleanup_queue; } - sg_init_table(mq->sg, host->max_phys_segs); + sg_init_table(mq->sg, host->max_segs); } - init_MUTEX(&mq->thread_sem); + 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"); if (IS_ERR(mq->thread)) { ret = PTR_ERR(mq->thread); goto free_bounce_sg; |