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authorChristoph Hellwig <hch@lst.de>2017-01-27 09:46:29 +0100
committerJens Axboe <axboe@fb.com>2017-01-27 15:08:35 -0700
commit82ed4db499b8598f16f8871261bff088d6b0597f (patch)
treee1cc0a433bf5ae2b9723837291617bdfeeb61816 /include/linux/blkdev.h
parent8ae94eb65be9425af4d57a4f4cfebfdf03081e93 (diff)
block: split scsi_request out of struct request
And require all drivers that want to support BLOCK_PC to allocate it as the first thing of their private data. To support this the legacy IDE and BSG code is switched to set cmd_size on their queues to let the block layer allocate the additional space. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h13
1 files changed, 0 insertions, 13 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 461b7cf6af1d..e4c5f284fe2d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -128,8 +128,6 @@ typedef __u32 __bitwise req_flags_t;
#define RQF_NOMERGE_FLAGS \
(RQF_STARTED | RQF_SOFTBARRIER | RQF_FLUSH_SEQ | RQF_SPECIAL_PAYLOAD)
-#define BLK_MAX_CDB 16
-
/*
* Try to put the fields that are referenced together in the same cacheline.
*
@@ -227,17 +225,7 @@ struct request {
int errors;
- /*
- * when request is used as a packet command carrier
- */
- unsigned char __cmd[BLK_MAX_CDB];
- unsigned char *cmd;
- unsigned short cmd_len;
-
unsigned int extra_len; /* length of alignment and padding */
- unsigned int sense_len;
- unsigned int resid_len; /* residual count */
- void *sense;
unsigned long deadline;
struct list_head timeout_list;
@@ -925,7 +913,6 @@ extern void blk_rq_init(struct request_queue *q, struct request *rq);
extern void blk_put_request(struct request *);
extern void __blk_put_request(struct request_queue *, struct request *);
extern struct request *blk_get_request(struct request_queue *, int, gfp_t);
-extern void blk_rq_set_block_pc(struct request *);
extern void blk_requeue_request(struct request_queue *, struct request *);
extern int blk_lld_busy(struct request_queue *q);
extern int blk_rq_prep_clone(struct request *rq, struct request *rq_src,