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authorChristoph Hellwig <hch@lst.de>2017-05-01 10:19:08 -0600
committerJens Axboe <axboe@fb.com>2017-05-02 07:52:08 -0600
commitd6296d39e90c9075bc2fc15f1e86dac44930d4b5 (patch)
tree46c56a31e8b72182c4f9f5d7937f790e9a111f68 /drivers/block
parenta800ce8ba53da88571872cbccb0e2fff8e374752 (diff)
downloadlinux-d6296d39e90c9075bc2fc15f1e86dac44930d4b5.tar.bz2
blk-mq: update ->init_request and ->exit_request prototypes
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@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/loop.c5
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c20
-rw-r--r--drivers/block/nbd.c7
-rw-r--r--drivers/block/rbd.c5
-rw-r--r--drivers/block/virtio_blk.c7
5 files changed, 16 insertions, 28 deletions
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 9108be601a64..96fe6500e941 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3818,10 +3818,10 @@ 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)
@@ -3831,20 +3831,12 @@ 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);
- /*
- * 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 ac376b9b852d..6b98ec2a3824 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 @@ out:
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