tree 5752d02cc755e242270f700d442f35b5fc9557d9
parent e9c7469bb4f502dafc092166201bea1ad5fc0fbf
author Tejun Heo <tj@kernel.org> 1283507778 +0200
committer Jens Axboe <jaxboe@fusionio.com> 1284114938 +0200

block: make __blk_rq_prep_clone() copy most command flags

Currently __blk_rq_prep_clone() copies only REQ_WRITE and REQ_DISCARD.
There's no reason to omit other command flags and REQ_FUA needs to be
copied to implement FUA support in request-based dm.

REQ_COMMON_MASK which specifies flags to be copied from bio to request
already identifies all the command flags.  Define REQ_CLONE_MASK to be
the same as REQ_COMMON_MASK for clarity and make __blk_rq_prep_clone()
copy all flags in the mask.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>