nfsd: Check queue type before submitting a SCSI request
authorBart Van Assche <bart.vanassche@sandisk.com>
Wed, 31 May 2017 21:43:50 +0000 (14:43 -0700)
committerJens Axboe <axboe@fb.com>
Thu, 1 Jun 2017 19:10:46 +0000 (13:10 -0600)
commit30181faae37fa80d3aa73672e5df5f2a5b8dea0a
tree3481f39f48f01bf0f264956ae97477f195a61b49
parent73d17701db503382eeed03afb3a6c39ec4d9a5c7
nfsd: Check queue type before submitting a SCSI request

Since using scsi_req() is only allowed against request queues for
which struct scsi_request is the first member of their private
request data, refuse to submit SCSI commands against a queue for
which this is not the case.

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>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Cc: Jeff Layton <jlayton@poochiereds.net>
Cc: Omar Sandoval <osandov@fb.com>
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
fs/nfsd/blocklayout.c