bsg: Check queue type before attaching to a queue
authorBart Van Assche <bart.vanassche@sandisk.com>
Wed, 31 May 2017 21:43:47 +0000 (14:43 -0700)
committerJens Axboe <axboe@fb.com>
Thu, 1 Jun 2017 19:10:41 +0000 (13:10 -0600)
commitd9f972644606ecc2581390b43cb5a980b54c04bf
treed3d18ca37ba991b198665560eae8d24cfbacc949
parent9efc160f4bbd69b17b48edec53067537d04e62b7
bsg: Check queue type before attaching to a queue

Since BSG only supports request queues for which struct scsi_request
is the first member of their private request data, refuse to register
block layer queues for which struct scsi_request is not the first
member of their private data.

References: commit bd1599d931ca ("scsi_transport_sas: fix BSG ioctl memory corruption")
References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/bsg.c