From: Christoph Hellwig Date: Thu, 20 Apr 2017 14:03:09 +0000 (+0200) Subject: blk-mq: remove the error argument to blk_mq_complete_request X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=08e0029aa2a4acdd365613ce88a1184e5351a8a1;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git blk-mq: remove the error argument to blk_mq_complete_request Now that all drivers that call blk_mq_complete_requests have a ->complete callback we can remove the direct call to blk_mq_end_request, as well as the error argument to blk_mq_complete_request. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Reviewed-by: Bart Van Assche Signed-off-by: Jens Axboe --- diff --git a/block/blk-mq.c b/block/blk-mq.c index c496692ecc5b..3a2d179d49d6 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -442,17 +442,10 @@ static void blk_mq_stat_add(struct request *rq) static void __blk_mq_complete_request(struct request *rq) { - struct request_queue *q = rq->q; - if (rq->internal_tag != -1) blk_mq_sched_completed_request(rq); - blk_mq_stat_add(rq); - - if (!q->softirq_done_fn) - blk_mq_end_request(rq, rq->errors); - else - blk_mq_ipi_complete_request(rq); + blk_mq_ipi_complete_request(rq); } /** @@ -463,16 +456,14 @@ static void __blk_mq_complete_request(struct request *rq) * Ends all I/O on a request. It does not handle partial completions. * The actual completion happens out-of-order, through a IPI handler. **/ -void blk_mq_complete_request(struct request *rq, int error) +void blk_mq_complete_request(struct request *rq) { struct request_queue *q = rq->q; if (unlikely(blk_should_fake_timeout(q))) return; - if (!blk_mark_rq_complete(rq)) { - rq->errors = error; + if (!blk_mark_rq_complete(rq)) __blk_mq_complete_request(rq); - } } EXPORT_SYMBOL(blk_mq_complete_request); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 86351b3f7350..994403efee19 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -465,7 +465,7 @@ static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2) struct loop_cmd *cmd = container_of(iocb, struct loop_cmd, iocb); cmd->ret = ret; - blk_mq_complete_request(cmd->rq, 0); + blk_mq_complete_request(cmd->rq); } static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd, @@ -1685,7 +1685,7 @@ static void loop_handle_cmd(struct loop_cmd *cmd) /* complete non-aio request */ if (!cmd->use_aio || ret) { cmd->ret = ret ? -EIO : 0; - blk_mq_complete_request(cmd->rq, 0); + blk_mq_complete_request(cmd->rq); } } diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 7406de29db58..66a6bd83faae 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -242,7 +242,7 @@ static void mtip_async_complete(struct mtip_port *port, rq = mtip_rq_from_tag(dd, tag); cmd->status = status; - blk_mq_complete_request(rq, 0); + blk_mq_complete_request(rq); } /* @@ -4109,7 +4109,7 @@ static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv) if (likely(!reserv)) { cmd->status = -ENODEV; - blk_mq_complete_request(rq, 0); + blk_mq_complete_request(rq); } else if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &dd->port->flags)) { cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL); diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 09a74a66beb1..d387bef07fcc 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -635,7 +635,7 @@ static void recv_work(struct work_struct *work) break; } - blk_mq_complete_request(blk_mq_rq_from_pdu(cmd), 0); + blk_mq_complete_request(blk_mq_rq_from_pdu(cmd)); } atomic_dec(&config->recv_threads); wake_up(&config->recv_wq); @@ -651,7 +651,7 @@ static void nbd_clear_req(struct request *req, void *data, bool reserved) return; cmd = blk_mq_rq_to_pdu(req); cmd->status = -EIO; - blk_mq_complete_request(req, 0); + blk_mq_complete_request(req); } static void nbd_clear_que(struct nbd_device *nbd) diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 0ca4aa34edb9..d946e1eeac8e 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -281,7 +281,7 @@ static inline void null_handle_cmd(struct nullb_cmd *cmd) case NULL_IRQ_SOFTIRQ: switch (queue_mode) { case NULL_Q_MQ: - blk_mq_complete_request(cmd->rq, 0); + blk_mq_complete_request(cmd->rq); break; case NULL_Q_RQ: blk_complete_request(cmd->rq); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index dea2a58d6734..f94614257462 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -201,7 +201,7 @@ static void virtblk_done(struct virtqueue *vq) while ((vbr = virtqueue_get_buf(vblk->vqs[qid].vq, &len)) != NULL) { struct request *req = blk_mq_rq_from_pdu(vbr); - blk_mq_complete_request(req, 0); + blk_mq_complete_request(req); req_done = true; } if (unlikely(virtqueue_is_broken(vq))) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 57866355c060..39459631667c 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1647,7 +1647,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) BUG(); } - blk_mq_complete_request(req, 0); + blk_mq_complete_request(req); } rinfo->ring.rsp_cons = i; diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index 1173be21f6f6..bff7e3bdb4ed 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -363,7 +363,7 @@ static void dm_complete_request(struct request *rq, int error) if (!rq->q->mq_ops) blk_complete_request(rq); else - blk_mq_complete_request(rq, 0); + blk_mq_complete_request(rq); } /* diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 805f250315ec..8dc664798293 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -117,7 +117,7 @@ void nvme_cancel_request(struct request *req, void *data, bool reserved) if (blk_queue_dying(req->q)) status |= NVME_SC_DNR; nvme_req(req)->status = status; - blk_mq_complete_request(req, 0); + blk_mq_complete_request(req); } EXPORT_SYMBOL_GPL(nvme_cancel_request); diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 550037f5efea..c6ef6c30e2f0 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -251,7 +251,7 @@ static inline void nvme_end_request(struct request *req, __le16 status, rq->status = le16_to_cpu(status) >> 1; rq->result = result; - blk_mq_complete_request(req, 0); + blk_mq_complete_request(req); } void nvme_complete_rq(struct request *req); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index b9298a499e19..4a20e6098f7c 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1904,7 +1904,7 @@ static int scsi_mq_prep_fn(struct request *req) static void scsi_mq_done(struct scsi_cmnd *cmd) { trace_scsi_dispatch_cmd_done(cmd); - blk_mq_complete_request(cmd->request, 0); + blk_mq_complete_request(cmd->request); } static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx, diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index d75de612845d..0c4dadb85f62 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -228,7 +228,7 @@ void blk_mq_add_to_requeue_list(struct request *rq, bool at_head, void blk_mq_kick_requeue_list(struct request_queue *q); void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs); void blk_mq_abort_requeue_list(struct request_queue *q); -void blk_mq_complete_request(struct request *rq, int error); +void blk_mq_complete_request(struct request *rq); bool blk_mq_queue_stopped(struct request_queue *q); void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);