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scsi: block: remove req->special 

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2018-11-09 19:35:11 +01:00 committed by Martin K. Petersen
parent b9f9199299
commit 69ed175c19
3 changed files with 0 additions and 5 deletions
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1
block/blk-mq.c
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@ -331,7 +331,6 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
#if defined(CONFIG_BLK_DEV_INTEGRITY)
rq->nr_integrity_segments = 0;
#endif
rq->special = NULL;
/* tag was already set */
rq->extra_len = 0;
WRITE_ONCE(rq->deadline, 0);

2
drivers/scsi/sd.c
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@ -1171,8 +1171,6 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
if (ret != BLK_STS_OK)
return ret;
WARN_ON_ONCE(cmd != rq->special);
if (!scsi_device_online(sdp) || sdp->changed) {
scmd_printk(KERN_ERR, cmd, "device offline or changed\n");
return BLK_STS_IOERR;

2
include/linux/blkdev.h
View File

@ -216,8 +216,6 @@ struct request {
unsigned short write_hint;
unsigned short ioprio;
void *special; /* opaque pointer available for LLD use */
unsigned int extra_len; /* length of alignment and padding */
enum mq_rq_state state;