block: Introduce queue flag QUEUE_FLAG_SCSI_PASSTHROUGH

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From the context where a SCSI command is submitted it is not always
possible to figure out whether or not the queue the command is
submitted to has struct scsi_request as the first member of its
private data. Hence introduce the flag QUEUE_FLAG_SCSI_PASSTHROUGH.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Don Brace <don.brace@microsemi.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Bart Van Assche 2017-05-31 14:43:46 -07:00 • committed by Jens Axboe

parent edea55abb8

commit 9efc160f4b

6 changed files with 9 additions and 0 deletions

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include/linux/blkdev.h

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