From bb5f1d2c07f61f4f68ac56bba152491ecd12efa1 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 13 Jan 2011 20:00:02 +0000
Subject: [PATCH] --- yaml --- r: 230690 b: refs/heads/master c:
 99d03c141b40914b67d63c9d23b8da4386422ed7 h: refs/heads/master v: v3

---
 [refs]                              | 2 +-
 trunk/drivers/md/dm-table.c         | 5 +++++
 trunk/include/linux/device-mapper.h | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 5cf13b186222..24110d602d4f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9d357b0787bb3c91835d5e658c3bda178f9ca419
+refs/heads/master: 99d03c141b40914b67d63c9d23b8da4386422ed7
diff --git a/trunk/drivers/md/dm-table.c b/trunk/drivers/md/dm-table.c
index 7e2ec3c05550..dffa0ac7c4f0 100644
--- a/trunk/drivers/md/dm-table.c
+++ b/trunk/drivers/md/dm-table.c
@@ -1278,6 +1278,7 @@ void dm_table_unplug_all(struct dm_table *t)
 {
 	struct dm_dev_internal *dd;
 	struct list_head *devices = dm_table_get_devices(t);
+	struct dm_target_callbacks *cb;
 
 	list_for_each_entry(dd, devices, list) {
 		struct request_queue *q = bdev_get_queue(dd->dm_dev.bdev);
@@ -1290,6 +1291,10 @@ void dm_table_unplug_all(struct dm_table *t)
 				     dm_device_name(t->md),
 				     bdevname(dd->dm_dev.bdev, b));
 	}
+
+	list_for_each_entry(cb, &t->target_callbacks, list)
+		if (cb->unplug_fn)
+			cb->unplug_fn(cb);
 }
 
 struct mapped_device *dm_table_get_md(struct dm_table *t)
diff --git a/trunk/include/linux/device-mapper.h b/trunk/include/linux/device-mapper.h
index 4b1c63d478ab..272496d1fae4 100644
--- a/trunk/include/linux/device-mapper.h
+++ b/trunk/include/linux/device-mapper.h
@@ -197,6 +197,7 @@ struct dm_target {
 struct dm_target_callbacks {
 	struct list_head list;
 	int (*congested_fn) (struct dm_target_callbacks *, int);
+	void (*unplug_fn)(struct dm_target_callbacks *);
 };
 
 int dm_register_target(struct target_type *t);