[PATCH 17/25] blk-mq: remove the error argument to blk_mq_complete_request
Christoph Hellwig
hch at lst.de
Thu Apr 6 08:39:36 PDT 2017
Now that we always 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 <hch at lst.de>
---
block/blk-mq.c | 14 +++-----------
drivers/block/loop.c | 4 ++--
drivers/block/mtip32xx/mtip32xx.c | 4 ++--
drivers/block/nbd.c | 4 ++--
drivers/block/null_blk.c | 2 +-
drivers/block/virtio_blk.c | 2 +-
drivers/block/xen-blkfront.c | 2 +-
drivers/md/dm-rq.c | 2 +-
drivers/nvme/host/core.c | 2 +-
drivers/nvme/host/nvme.h | 2 +-
drivers/scsi/scsi_lib.c | 2 +-
include/linux/blk-mq.h | 2 +-
12 files changed, 17 insertions(+), 25 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f7cd3208bcdf..393f350ebb90 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -441,14 +441,8 @@ static void blk_mq_stat_add(struct request *rq)
static void __blk_mq_complete_request(struct request *rq)
{
- struct request_queue *q = rq->q;
-
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);
}
/**
@@ -459,16 +453,14 @@ 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 6924ec611a49..7d49d919543a 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,
@@ -1683,7 +1683,7 @@ 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 ec998e80cfaf..be6bbe5ce613 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);
}
/*
@@ -4110,7 +4110,7 @@ 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 4f045fab9659..4f78c5a01d11 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -498,7 +498,7 @@ 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));
}
/*
@@ -519,7 +519,7 @@ 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 24ca85a70fd8..c27cccec368b 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 08172f679a64..ae47f7f7cd10 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 e1cea42ec2a6..18d0bb305930 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -358,7 +358,7 @@ 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 fbc7d64b6f10..9bf758e3c911 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 4dc930d3545d..72dc98f6a6c6 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 8c7652f04900..2e84515674bb 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1887,7 +1887,7 @@ 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 bdea90d75274..05c551e22eec 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -227,7 +227,7 @@ 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);
--
2.11.0
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