tree 191c0afe31c15ac4c1bab96e0a07fddb097d0de8
parent 5dc06c5a70b79a323152bec7e55783e705767e63
author Christoph Hellwig <hch@infradead.org> 1314103829 +0200
committer Jens Axboe <jaxboe@fusionio.com> 1314103829 +0200

block: separate priority boosting from REQ_META

Add a new REQ_PRIO to let requests preempt others in the cfq I/O schedule,
and lave REQ_META purely for marking requests as metadata in blktrace.

All existing callers of REQ_META except for XFS are updated to also
set REQ_PRIO for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>