From 69267a30bed1fabec658058c63845528a8b813d4 Mon Sep 17 00:00:00 2001
From: Alasdair G Kergon <agk@redhat.com>
Date: Thu, 13 Dec 2007 14:15:57 +0000
Subject: [PATCH] dm: trigger change uevent on rename
Insert a missing KOBJ_CHANGE notification when a device is renamed.
Cc: Scott James Remnant <scott@ubuntu.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm-ioctl.c | 2 ++
drivers/md/dm.c | 7 ++++++-
drivers/md/dm.h | 2 ++
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index be730fdd483..9627fa0f947 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -332,6 +332,8 @@ static int dm_hash_rename(const char *old, const char *new)
dm_table_put(table);
}
+ dm_kobject_uevent(hc->md);
+
dm_put(hc->md);
up_write(&_hash_lock);
kfree(old_name);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index cff2a714c10..88c0fd65782 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1514,7 +1514,7 @@ int dm_resume(struct mapped_device *md)
dm_table_unplug_all(map);
- kobject_uevent(&md->disk->kobj, KOBJ_CHANGE);
+ dm_kobject_uevent(md);
r = 0;
@@ -1528,6 +1528,11 @@ out:
/*-----------------------------------------------------------------
* Event notification.
*---------------------------------------------------------------*/
+void dm_kobject_uevent(struct mapped_device *md)
+{
+ kobject_uevent(&md->disk->kobj, KOBJ_CHANGE);
+}
+
uint32_t dm_next_uevent_seq(struct mapped_device *md)
{
return atomic_add_return(1, &md->uevent_seq);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 177297a88eb..b4584a39383 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -187,4 +187,6 @@ union map_info *dm_get_mapinfo(struct bio *bio);
int dm_open_count(struct mapped_device *md);
int dm_lock_for_deletion(struct mapped_device *md);
+void dm_kobject_uevent(struct mapped_device *md);
+
#endif
--
2.20.1