aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/md/linear.c15
-rw-r--r--drivers/md/raid0.c17
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index b99c19c7eb2..c625ddb8833 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -111,6 +111,19 @@ static int linear_issue_flush(request_queue_t *q, struct gendisk *disk,
return ret;
}
+static int linear_congested(void *data, int bits)
+{
+ mddev_t *mddev = data;
+ linear_conf_t *conf = mddev_to_conf(mddev);
+ int i, ret = 0;
+
+ for (i = 0; i < mddev->raid_disks && !ret ; i++) {
+ request_queue_t *q = bdev_get_queue(conf->disks[i].rdev->bdev);
+ ret |= bdi_congested(&q->backing_dev_info, bits);
+ }
+ return ret;
+}
+
static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
{
linear_conf_t *conf;
@@ -269,6 +282,8 @@ 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;
}
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index cb8c6317e4e..dfe32149ad3 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -60,6 +60,21 @@ static int raid0_issue_flush(request_queue_t *q, struct gendisk *disk,
return ret;
}
+static int raid0_congested(void *data, int bits)
+{
+ mddev_t *mddev = data;
+ raid0_conf_t *conf = mddev_to_conf(mddev);
+ mdk_rdev_t **devlist = conf->strip_zone[0].dev;
+ int i, ret = 0;
+
+ for (i = 0; i < mddev->raid_disks && !ret ; i++) {
+ request_queue_t *q = bdev_get_queue(devlist[i]->bdev);
+
+ ret |= bdi_congested(&q->backing_dev_info, bits);
+ }
+ return ret;
+}
+
static int create_strip_zones (mddev_t *mddev)
{
@@ -236,6 +251,8 @@ static int create_strip_zones (mddev_t *mddev)
mddev->queue->unplug_fn = raid0_unplug;
mddev->queue->issue_flush_fn = raid0_issue_flush;
+ mddev->queue->backing_dev_info.congested_fn = raid0_congested;
+ mddev->queue->backing_dev_info.congested_data = mddev;
printk("raid0: done.\n");
return 0;