From 7c94e1c157a227837b04f02f5edeff8301410ba2 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 25 Sep 2014 23:23:43 +0800 Subject: block: introduce blk_flush_queue to drive flush machinery This patch introduces 'struct blk_flush_queue' and puts all flush machinery related fields into this structure, so that - flush implementation details aren't exposed to driver - it is easy to convert to per dispatch-queue flush machinery This patch is basically a mechanical replacement. Reviewed-by: Christoph Hellwig Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e267bf0db559..49f3461e4272 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -36,6 +36,7 @@ struct request; struct sg_io_hdr; struct bsg_job; struct blkcg_gq; +struct blk_flush_queue; #define BLKDEV_MIN_RQ 4 #define BLKDEV_MAX_RQ 128 /* Default maximum */ @@ -455,14 +456,7 @@ struct request_queue { */ unsigned int flush_flags; unsigned int flush_not_queueable:1; - unsigned int flush_queue_delayed:1; - unsigned int flush_pending_idx:1; - unsigned int flush_running_idx:1; - unsigned long flush_pending_since; - struct list_head flush_queue[2]; - struct list_head flush_data_in_flight; - struct request *flush_rq; - spinlock_t mq_flush_lock; + struct blk_flush_queue *fq; struct list_head requeue_list; spinlock_t requeue_lock; -- cgit v1.2.3