Remove the request_idx parameter, which can't be used safely now that we
support I/O schedulers with blk-mq. Except for a superflous check in
mtip32xx it was unused anyway.
Also pass the tag_set instead of just the driver data - this allows drivers
to avoid some code duplication in a follow on cleanup.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
block/blk-mq.c | 18 +++++-------------
drivers/block/loop.c | 5 ++---
drivers/block/mtip32xx/mtip32xx.c | 20 ++++++--------------
drivers/block/nbd.c | 7 +++----
drivers/block/rbd.c | 5 ++---
drivers/block/virtio_blk.c | 7 +++----
drivers/md/dm-rq.c | 7 +++----
drivers/mtd/ubi/block.c | 7 +++----
drivers/nvme/host/fc.c | 20 +++++++++-----------
drivers/nvme/host/pci.c | 15 +++++++--------
drivers/nvme/host/rdma.c | 28 ++++++++++++++--------------
drivers/nvme/target/loop.c | 17 +++++++++--------
drivers/scsi/scsi_lib.c | 13 ++++++-------
include/linux/blk-mq.h | 4 ++--
14 files changed, 74 insertions(+), 99 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index b75ef2392db7..c4493e012a0c 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1658,8 +1658,7 @@ void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
if (!rq)
continue;
- set->ops->exit_request(set->driver_data, rq,
- hctx_idx, i);
+ set->ops->exit_request(set, rq, hctx_idx);
tags->static_rqs[i] = NULL;
}
}
@@ -1790,8 +1789,7 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
tags->static_rqs[i] = rq;
if (set->ops->init_request) {
- if (set->ops->init_request(set->driver_data,
- rq, hctx_idx, i,
+ if (set->ops->init_request(set, rq, hctx_idx,
node)) {
tags->static_rqs[i] = NULL;
goto fail;
@@ -1852,14 +1850,10 @@ static void blk_mq_exit_hctx(struct request_queue *q,
struct blk_mq_tag_set *set,
struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
{
- unsigned flush_start_tag = set->queue_depth;
-
blk_mq_tag_idle(hctx);
if (set->ops->exit_request)
- set->ops->exit_request(set->driver_data,
- hctx->fq->flush_rq, hctx_idx,
- flush_start_tag + hctx_idx);
+ set->ops->exit_request(set, hctx->fq->flush_rq, hctx_idx);
blk_mq_sched_exit_hctx(q, hctx, hctx_idx);
@@ -1892,7 +1886,6 @@ static int blk_mq_init_hctx(struct request_queue *q,
struct blk_mq_hw_ctx *hctx, unsigned hctx_idx)
{
int node;
- unsigned flush_start_tag = set->queue_depth;
node = hctx->numa_node;
if (node == NUMA_NO_NODE)
@@ -1938,9 +1931,8 @@ static int blk_mq_init_hctx(struct request_queue *q,
goto sched_exit_hctx;
if (set->ops->init_request &&
- set->ops->init_request(set->driver_data,
- hctx->fq->flush_rq, hctx_idx,
- flush_start_tag + hctx_idx, node))
+ set->ops->init_request(set, hctx->fq->flush_rq, hctx_idx,
+ node))
goto free_fq;
if (hctx->flags & BLK_MQ_F_BLOCKING)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 994403efee19..28d932906f24 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1697,9 +1697,8 @@ static void loop_queue_work(struct kthread_work *work)
loop_handle_cmd(cmd);
}
-static int loop_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int loop_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
struct loop_cmd *cmd = blk_mq_rq_to_pdu(rq);
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index eba8bcd677fa..75e3f91de199 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3821,10 +3821,10 @@ static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx,
return BLK_MQ_RQ_QUEUE_ERROR;
}
-static void mtip_free_cmd(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx)
+static void mtip_free_cmd(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx)
{
- struct driver_data *dd = data;
+ struct driver_data *dd = set->driver_data;
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
if (!cmd->command)
@@ -3834,21 +3834,13 @@ static void mtip_free_cmd(void *data, struct request *rq,
cmd->command, cmd->command_dma);
}
-static int mtip_init_cmd(void *data, struct request *rq, unsigned int hctx_idx,
- unsigned int request_idx, unsigned int numa_node)
+static int mtip_init_cmd(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct driver_data *dd = data;
+ struct driver_data *dd = set->driver_data;
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
u32 host_cap_64 = readl(dd->mmio + HOST_CAP) & HOST_CAP_64;
- /*
- * For flush requests, request_idx starts at the end of the
- * tag space. Since we don't support FLUSH/FUA, simply return
- * 0 as there's nothing to be done.
- */
- if (request_idx >= MTIP_MAX_COMMAND_SLOTS)
- return 0;
-
cmd->command = dmam_alloc_coherent(&dd->pdev->dev, CMD_DMA_ALLOC_SZ,
&cmd->command_dma, GFP_KERNEL);
if (!cmd->command)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 5583dc4ff941..42c0825367e6 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1396,12 +1396,11 @@ static void nbd_dbg_close(void)
#endif
-static int nbd_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int nbd_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
struct nbd_cmd *cmd = blk_mq_rq_to_pdu(rq);
- cmd->nbd = data;
+ cmd->nbd = set->driver_data;
return 0;
}
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 089ac4179919..3670e8dd03fe 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4307,9 +4307,8 @@ static int rbd_dev_refresh(struct rbd_device *rbd_dev)
return ret;
}
-static int rbd_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int rbd_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
struct work_struct *work = blk_mq_rq_to_pdu(rq);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index f94614257462..94173de1efaa 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -573,11 +573,10 @@ static const struct device_attribute dev_attr_cache_type_rw =
__ATTR(cache_type, S_IRUGO|S_IWUSR,
virtblk_cache_type_show, virtblk_cache_type_store);
-static int virtblk_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int virtblk_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct virtio_blk *vblk = data;
+ struct virtio_blk *vblk = set->driver_data;
struct virtblk_req *vbr = blk_mq_rq_to_pdu(rq);
#ifdef CONFIG_VIRTIO_BLK_SCSI
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index bff7e3bdb4ed..522d4fa8db64 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -719,11 +719,10 @@ int dm_old_init_request_queue(struct mapped_device *md, struct dm_table *t)
return 0;
}
-static int dm_mq_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int dm_mq_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- return __dm_rq_init_rq(data, rq);
+ return __dm_rq_init_rq(set->driver_data, rq);
}
static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
index 51f2be8889b5..5497e65439df 100644
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -334,10 +334,9 @@ static int ubiblock_queue_rq(struct blk_mq_hw_ctx *hctx,
}
-static int ubiblock_init_request(void *data, struct request *req,
- unsigned int hctx_idx,
- unsigned int request_idx,
- unsigned int numa_node)
+static int ubiblock_init_request(struct blk_mq_tag_set *set,
+ struct request *req, unsigned int hctx_idx,
+ unsigned int numa_node)
{
struct ubiblock_pdu *pdu = blk_mq_rq_to_pdu(req);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 4976db56e351..70e689bf1cad 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1172,12 +1172,12 @@ __nvme_fc_exit_request(struct nvme_fc_ctrl *ctrl,
}
static void
-nvme_fc_exit_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx)
+nvme_fc_exit_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx)
{
struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(rq);
- return __nvme_fc_exit_request(data, op);
+ return __nvme_fc_exit_request(set->driver_data, op);
}
static int
@@ -1434,11 +1434,10 @@ __nvme_fc_init_request(struct nvme_fc_ctrl *ctrl,
}
static int
-nvme_fc_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+nvme_fc_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct nvme_fc_ctrl *ctrl = data;
+ struct nvme_fc_ctrl *ctrl = set->driver_data;
struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(rq);
struct nvme_fc_queue *queue = &ctrl->queues[hctx_idx+1];
@@ -1446,11 +1445,10 @@ nvme_fc_init_request(void *data, struct request *rq,
}
static int
-nvme_fc_init_admin_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+nvme_fc_init_admin_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct nvme_fc_ctrl *ctrl = data;
+ struct nvme_fc_ctrl *ctrl = set->driver_data;
struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(rq);
struct nvme_fc_queue *queue = &ctrl->queues[0];
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index c8541c3dcd19..56a315bd4d96 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -356,11 +356,11 @@ static void nvme_admin_exit_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_i
nvmeq->tags = NULL;
}
-static int nvme_admin_init_request(void *data, struct request *req,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_admin_init_request(struct blk_mq_tag_set *set,
+ struct request *req, unsigned int hctx_idx,
+ unsigned int numa_node)
{
- struct nvme_dev *dev = data;
+ struct nvme_dev *dev = set->driver_data;
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
struct nvme_queue *nvmeq = dev->queues[0];
@@ -383,11 +383,10 @@ static int nvme_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
return 0;
}
-static int nvme_init_request(void *data, struct request *req,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_init_request(struct blk_mq_tag_set *set, struct request *req,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct nvme_dev *dev = data;
+ struct nvme_dev *dev = set->driver_data;
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
struct nvme_queue *nvmeq = dev->queues[hctx_idx + 1];
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 29cf88ac3f61..dd1c6deef82f 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -315,16 +315,16 @@ static void __nvme_rdma_exit_request(struct nvme_rdma_ctrl *ctrl,
DMA_TO_DEVICE);
}
-static void nvme_rdma_exit_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx)
+static void nvme_rdma_exit_request(struct blk_mq_tag_set *set,
+ struct request *rq, unsigned int hctx_idx)
{
- return __nvme_rdma_exit_request(data, rq, hctx_idx + 1);
+ return __nvme_rdma_exit_request(set->driver_data, rq, hctx_idx + 1);
}
-static void nvme_rdma_exit_admin_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx)
+static void nvme_rdma_exit_admin_request(struct blk_mq_tag_set *set,
+ struct request *rq, unsigned int hctx_idx)
{
- return __nvme_rdma_exit_request(data, rq, 0);
+ return __nvme_rdma_exit_request(set->driver_data, rq, 0);
}
static int __nvme_rdma_init_request(struct nvme_rdma_ctrl *ctrl,
@@ -358,18 +358,18 @@ static int __nvme_rdma_init_request(struct nvme_rdma_ctrl *ctrl,
return -ENOMEM;
}
-static int nvme_rdma_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_rdma_init_request(struct blk_mq_tag_set *set,
+ struct request *rq, unsigned int hctx_idx,
+ unsigned int numa_node)
{
- return __nvme_rdma_init_request(data, rq, hctx_idx + 1);
+ return __nvme_rdma_init_request(set->driver_data, rq, hctx_idx + 1);
}
-static int nvme_rdma_init_admin_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_rdma_init_admin_request(struct blk_mq_tag_set *set,
+ struct request *rq, unsigned int hctx_idx,
+ unsigned int numa_node)
{
- return __nvme_rdma_init_request(data, rq, 0);
+ return __nvme_rdma_init_request(set->driver_data, rq, 0);
}
static int nvme_rdma_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 304f1c87c160..feb497134aee 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -230,18 +230,19 @@ static int nvme_loop_init_iod(struct nvme_loop_ctrl *ctrl,
return 0;
}
-static int nvme_loop_init_request(void *data, struct request *req,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_loop_init_request(struct blk_mq_tag_set *set,
+ struct request *req, unsigned int hctx_idx,
+ unsigned int numa_node)
{
- return nvme_loop_init_iod(data, blk_mq_rq_to_pdu(req), hctx_idx + 1);
+ return nvme_loop_init_iod(set->driver_data, blk_mq_rq_to_pdu(req),
+ hctx_idx + 1);
}
-static int nvme_loop_init_admin_request(void *data, struct request *req,
- unsigned int hctx_idx, unsigned int rq_idx,
- unsigned int numa_node)
+static int nvme_loop_init_admin_request(struct blk_mq_tag_set *set,
+ struct request *req, unsigned int hctx_idx,
+ unsigned int numa_node)
{
- return nvme_loop_init_iod(data, blk_mq_rq_to_pdu(req), 0);
+ return nvme_loop_init_iod(set->driver_data, blk_mq_rq_to_pdu(req), 0);
}
static int nvme_loop_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index abc391e00f7d..049242b3f5bc 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1998,11 +1998,10 @@ static enum blk_eh_timer_return scsi_timeout(struct request *req,
return scsi_times_out(req);
}
-static int scsi_init_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx,
- unsigned int numa_node)
+static int scsi_init_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx, unsigned int numa_node)
{
- struct Scsi_Host *shost = data;
+ struct Scsi_Host *shost = set->driver_data;
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
cmd->sense_buffer =
@@ -2013,10 +2012,10 @@ static int scsi_init_request(void *data, struct request *rq,
return 0;
}
-static void scsi_exit_request(void *data, struct request *rq,
- unsigned int hctx_idx, unsigned int request_idx)
+static void scsi_exit_request(struct blk_mq_tag_set *set, struct request *rq,
+ unsigned int hctx_idx)
{
- struct Scsi_Host *shost = data;
+ struct Scsi_Host *shost = set->driver_data;
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
scsi_free_sense_buffer(shost, cmd->sense_buffer);
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 0c4dadb85f62..1e84dffa4341 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -89,9 +89,9 @@ typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data
typedef enum blk_eh_timer_return (timeout_fn)(struct request *, bool);
typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
-typedef int (init_request_fn)(void *, struct request *, unsigned int,
+typedef int (init_request_fn)(struct blk_mq_tag_set *set, struct request *,
unsigned int, unsigned int);
-typedef void (exit_request_fn)(void *, struct request *, unsigned int,
+typedef void (exit_request_fn)(struct blk_mq_tag_set *set, struct request *,
unsigned int);
typedef int (reinit_request_fn)(void *, struct request *);
--
2.11.0
