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| author | Christoph Hellwig <hch@lst.de> | 2014-11-03 14:09:02 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-12 11:19:43 +0100 |
| commit | 2ecb204d07ac8debe3893c362415919bc78bebd6 (patch) | |
| tree | eef99b324201b21de358dffdab8bfc0453358d5f /drivers/s390/scsi/zfcp_scsi.c | |
| parent | e2eddf4d530df745019fded0fedfb78f6d3e33ca (diff) | |
| download | op-kernel-dev-2ecb204d07ac8debe3893c362415919bc78bebd6.zip op-kernel-dev-2ecb204d07ac8debe3893c362415919bc78bebd6.tar.gz | |
scsi: always assign block layer tags if enabled
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq. This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
0 files changed, 0 insertions, 0 deletions
