Merge branch 'linux-2.6'

[linux-2.6-omap-h63xx.git] / drivers / md / multipath.c

diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index f2a63f394ad980187ba9fc319ce71b57d27f349a..3f299d835a2b1956e210c0a383e65f2d9c70874f 100644 (file)
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -125,8 +125,7 @@ static void unplug_slaves(mddev_t *mddev)
                        atomic_inc(&rdev->nr_pending);
                        rcu_read_unlock();
 
-                       if (r_queue->unplug_fn)
-                               r_queue->unplug_fn(r_queue);
+                       blk_unplug(r_queue);
 
                        rdev_dec_pending(rdev, mddev);
                        rcu_read_lock();
@@ -194,35 +193,6 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev)
        seq_printf (seq, "]");
 }
 
-static int multipath_issue_flush(struct request_queue *q, struct gendisk *disk,
-                                sector_t *error_sector)
-{
-       mddev_t *mddev = q->queuedata;
-       multipath_conf_t *conf = mddev_to_conf(mddev);
-       int i, ret = 0;
-
-       rcu_read_lock();
-       for (i=0; i<mddev->raid_disks && ret == 0; i++) {
-               mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev);
-               if (rdev && !test_bit(Faulty, &rdev->flags)) {
-                       struct block_device *bdev = rdev->bdev;
-                       struct request_queue *r_queue = bdev_get_queue(bdev);
-
-                       if (!r_queue->issue_flush_fn)
-                               ret = -EOPNOTSUPP;
-                       else {
-                               atomic_inc(&rdev->nr_pending);
-                               rcu_read_unlock();
-                               ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk,
-                                                             error_sector);
-                               rdev_dec_pending(rdev, mddev);
-                               rcu_read_lock();
-                       }
-               }
-       }
-       rcu_read_unlock();
-       return ret;
-}
 static int multipath_congested(void *data, int bits)
 {
        mddev_t *mddev = data;
@@ -466,7 +436,7 @@ static int multipath_run (mddev_t *mddev)
        }
 
        conf->working_disks = 0;
-       ITERATE_RDEV(mddev,rdev,tmp) {
+       rdev_for_each(rdev, tmp, mddev) {
                disk_idx = rdev->raid_disk;
                if (disk_idx < 0 ||
                    disk_idx >= mddev->raid_disks)
@@ -527,7 +497,6 @@ static int multipath_run (mddev_t *mddev)
        mddev->array_size = mddev->size;
 
        mddev->queue->unplug_fn = multipath_unplug;
-       mddev->queue->issue_flush_fn = multipath_issue_flush;
        mddev->queue->backing_dev_info.congested_fn = multipath_congested;
        mddev->queue->backing_dev_info.congested_data = mddev;