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(parent: e6caab1) | patch
block: allow specifying size for extra command data
authorChristoph Hellwig <hch@lst.de>
Fri, 27 Jan 2017 16:51:45 +0000 (09:51 -0700)
committerJens Axboe <axboe@fb.com>
Fri, 27 Jan 2017 22:08:35 +0000 (15:08 -0700)
commit6cb7432786661c36cbfaf3fa1ce28d1e82f4e1dc
tree449921f154b9bd0176453478fdd7a8c6911be5adtree | snapshot
parente6caab1d34a0c2a6319c15358d86699715e9c7b4commit | diff
block: allow specifying size for extra command data

This mirrors the blk-mq capabilities to allocate extra drivers-specific
data behind struct request by setting a cmd_size field, as well as having
a constructor / destructor for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-core.c diff | blob | history
block/blk-flush.c diff | blob | history
block/blk-sysfs.c diff | blob | history
include/linux/blkdev.h diff | blob | history
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