From fd5d806266935179deda1502101624832eacd01f Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 16 Oct 2007 11:05:02 +0200 Subject: block: convert blkdev_issue_flush() to use empty barriers Then we can get rid of ->issue_flush_fn() and all the driver private implementations of that. Signed-off-by: Jens Axboe --- drivers/md/linear.c | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'drivers/md/linear.c') diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 550148770bb..56a11f6c127 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -92,25 +92,6 @@ static void linear_unplug(struct request_queue *q) } } -static int linear_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - linear_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - for (i=0; i < mddev->raid_disks && ret == 0; i++) { - struct block_device *bdev = conf->disks[i].rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, error_sector); - } - return ret; -} - static int linear_congested(void *data, int bits) { mddev_t *mddev = data; @@ -279,7 +260,6 @@ static int linear_run (mddev_t *mddev) blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->unplug_fn = linear_unplug; - mddev->queue->issue_flush_fn = linear_issue_flush; mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; return 0; -- cgit v1.2.3