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block: move dma_pad handling from blk_rq_map_sg into the callers

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There are only two callers of blk_rq_map_sg/__blk_rq_map_sg that set
the dma_pad value in the queue.  Move the handling into those callers
instead of burdening the common code, and move the ->extra_len field
from struct request to struct scsi_cmnd.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-04-14 09:42:25 +02:00 • committed by Jens Axboe
parent cc97923a5b
commit bdf8710d69
8 changed files with 16 additions and 16 deletions
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include/linux/blkdev.h
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@ -224,8 +224,6 @@ struct request {
unsigned short write_hint;
unsigned short ioprio;
unsigned int extra_len; /* length of alignment and padding */
enum mq_rq_state state;
refcount_t ref;