block: fix blk_rq_get_max_sectors for driver private requests
authorChristoph Hellwig <hch@lst.de>
Thu, 3 Mar 2016 21:43:45 +0000 (14:43 -0700)
committerJens Axboe <axboe@fb.com>
Thu, 3 Mar 2016 21:43:45 +0000 (14:43 -0700)
commitf21018427cb007a0894c36ad702990ab639cbbb4
tree88eff3b50155c51a210c61b0805f5a9c0daa9a14
parent45686b6198bd824f083ff5293f191d78db9d708a
block: fix blk_rq_get_max_sectors for driver private requests

Driver private request types should not get the artifical cap for the
FS requests.  This is important to use the full device capabilities
for internal command or NVMe pass through commands.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Jeff Lien <Jeff.Lien@hgst.com>
Tested-by: Jeff Lien <Jeff.Lien@hgst.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Updated by me to use an explicit check for the one command type that
does support extended checking, instead of relying on the ordering
of the enum command values - as suggested by Keith.

Signed-off-by: Jens Axboe <axboe@fb.com>
include/linux/blkdev.h