diff options
Diffstat (limited to 'drivers/mmc/core/queue.c')
| -rw-r--r-- | drivers/mmc/core/queue.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 284856c8f655..feda8ddbd8b6 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -266,6 +266,11 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, spin_unlock_irq(&mq->lock); return BLK_STS_RESOURCE; } + if (!host->hsq_enabled && host->cqe_enabled && req_op(req) == REQ_OP_WRITE && + mq->pending_writes >= card->max_posted_writes) { + spin_unlock_irq(&mq->lock); + return BLK_STS_RESOURCE; + } break; default: /* @@ -282,6 +287,8 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, /* Parallel dispatch of requests is not supported at the moment */ mq->busy = true; + if (req_op(req) == REQ_OP_WRITE) + mq->pending_writes++; mq->in_flight[issue_type] += 1; get_card = (mmc_tot_in_flight(mq) == 1); cqe_retune_ok = (mmc_cqe_qcnt(mq) == 1); @@ -321,6 +328,8 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, bool put_card = false; spin_lock_irq(&mq->lock); + if (req_op(req) == REQ_OP_WRITE) + mq->pending_writes--; mq->in_flight[issue_type] -= 1; if (mmc_tot_in_flight(mq) == 0) put_card = true; |