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-   -   dm: trigger change uevent on rename (http://www.linux-archive.org/device-mapper-development/18854-dm-trigger-change-uevent-rename.html)

Alasdair G Kergon 12-13-2007 01:43 PM

dm: trigger change uevent on rename
 
From: Alasdair G Kergon <agk@redhat.com>

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(-)

Index: linux-2.6.24-rc5/drivers/md/dm-ioctl.c
================================================== =================
--- linux-2.6.24-rc5.orig/drivers/md/dm-ioctl.c 2007-12-12 15:43:06.000000000 +0000
+++ linux-2.6.24-rc5/drivers/md/dm-ioctl.c 2007-12-12 15:43:13.000000000 +0000
@@ -332,6 +332,8 @@ static int dm_hash_rename(const char *ol
dm_table_put(table);
}

+ dm_kobject_uevent(hc->md);
+
dm_put(hc->md);
up_write(&_hash_lock);
kfree(old_name);
Index: linux-2.6.24-rc5/drivers/md/dm.c
================================================== =================
--- linux-2.6.24-rc5.orig/drivers/md/dm.c 2007-12-12 15:43:06.000000000 +0000
+++ linux-2.6.24-rc5/drivers/md/dm.c 2007-12-12 15:43:13.000000000 +0000
@@ -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);
Index: linux-2.6.24-rc5/drivers/md/dm.h
================================================== =================
--- linux-2.6.24-rc5.orig/drivers/md/dm.h 2007-12-12 15:43:06.000000000 +0000
+++ linux-2.6.24-rc5/drivers/md/dm.h 2007-12-12 15:43:13.000000000 +0000
@@ -187,4 +187,6 @@ union map_info *dm_get_mapinfo(struct bi
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

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