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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/scsi/ipr.c | |
| parent | scsi: remove use_blk_tcq Scsi_Host field (diff) | |
| download | linux-2ecb204d07ac8debe3893c362415919bc78bebd6.tar.xz linux-2ecb204d07ac8debe3893c362415919bc78bebd6.zip | |
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/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 6b52feafa929..f84fcb9a6ed7 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6317,6 +6317,7 @@ static struct scsi_host_template driver_template = { .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME, .no_write_same = 1, + .use_blk_tags = 1, }; /** |