summaryrefslogtreecommitdiffstats
path: root/drivers/md/linear.c
diff options
context:
space:
mode:
authorJens Axboe <jens.axboe@oracle.com>2007-10-16 11:05:02 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-10-16 11:05:02 +0200
commitfd5d806266935179deda1502101624832eacd01f (patch)
treeb0d01c2ed7d754f2a6daef6c77d108a81d8a470e /drivers/md/linear.c
parentbf2de6f5a4faf0197268f18d08969b003b87b6e8 (diff)
downloadlinux-fd5d806266935179deda1502101624832eacd01f.tar.bz2
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 <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/md/linear.c')
-rw-r--r--drivers/md/linear.c20
1 files changed, 0 insertions, 20 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 550148770bb2..56a11f6c127b 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;