diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-11-09 14:49:01 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-09 08:39:21 -0700 |
| commit | d85cb20453bc98da47ab4393a1a05afcafb39a0f (patch) | |
| tree | 8a8aadf3a0b676530d14e7745cfdbdcba8a8a77f /drivers/block/mtip32xx | |
| parent | 55c7bc37e05b5f7593b76d1c74e254b996b73d1a (diff) | |
| download | linux-d85cb20453bc98da47ab4393a1a05afcafb39a0f.tar.gz linux-d85cb20453bc98da47ab4393a1a05afcafb39a0f.tar.bz2 linux-d85cb20453bc98da47ab4393a1a05afcafb39a0f.zip | |
mtip32xx: don't use req->special
Instead create add to the icmd into struct mtip_cmd which can be unioned
with the scatterlist used for the normal I/O path.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/mtip32xx')
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.c | 5 | ||||
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.h | 7 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 5ae86224b2f5..e99db2c9118f 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -997,8 +997,6 @@ static int mtip_exec_internal_command(struct mtip_port *port, return -EFAULT; } - rq->special = &icmd; - set_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); if (fis->command == ATA_CMD_SEC_ERASE_PREP) @@ -1019,6 +1017,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, /* Copy the command to the command table */ int_cmd = blk_mq_rq_to_pdu(rq); + int_cmd->icmd = &icmd; memcpy(int_cmd->command, fis, fis_len*4); rq->timeout = timeout; @@ -3548,8 +3547,8 @@ static blk_status_t mtip_issue_reserved_cmd(struct blk_mq_hw_ctx *hctx, struct request *rq) { struct driver_data *dd = hctx->queue->queuedata; - struct mtip_int_cmd *icmd = rq->special; struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq); + struct mtip_int_cmd *icmd = cmd->icmd; struct mtip_cmd_hdr *hdr = dd->port->command_list + sizeof(struct mtip_cmd_hdr) * rq->tag; struct mtip_cmd_sg *command_sg; diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 63414928f07c..c33f8c3d9fb4 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -321,6 +321,8 @@ struct mtip_cmd_sg { }; struct mtip_port; +struct mtip_int_cmd; + /* Structure used to describe a command. */ struct mtip_cmd { void *command; /* ptr to command table entry */ @@ -331,7 +333,10 @@ struct mtip_cmd { int unaligned; /* command is unaligned on 4k boundary */ - struct scatterlist sg[MTIP_MAX_SG]; /* Scatter list entries */ + union { + struct scatterlist sg[MTIP_MAX_SG]; /* Scatter list entries */ + struct mtip_int_cmd *icmd; + }; int retries; /* The number of retries left for this command. */ |