summaryrefslogtreecommitdiff
path: root/include/scsi
diff options
context:
space:
mode:
authorBart Van Assche <bvanassche@acm.org>2014-10-30 14:45:11 +0100
committerChristoph Hellwig <hch@lst.de>2014-11-12 11:16:09 +0100
commit205fb5f5ba1d8edcf18009998ed05b80b7d186af (patch)
tree4f703687be0330fae7e7789f0a4534973535fd0a /include/scsi
parentf1569ff1d5ae0ca8598956be632947a88f540e2a (diff)
blk-mq: add blk_mq_unique_tag()
The queuecommand() callback functions in SCSI low-level drivers need to know which hardware context has been selected by the block layer. Since this information is not available in the request structure, and since passing the hctx pointer directly to the queuecommand callback function would require modification of all SCSI LLDs, add a function to the block layer that allows to query the hardware context index. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/scsi')
0 files changed, 0 insertions, 0 deletions