If anything is waiting on a device's table when the device is
removed, we must first wake it up so it will release its reference.
Otherwise the table's reference count will not drop to zero
and the table will not get removed.
From: "goggin, edward" <[email protected]>
Signed-Off-By: Alasdair G Kergon <[email protected]>
Index: linux-2.6.14-rc2/drivers/md/dm-ioctl.c
===================================================================
--- linux-2.6.14-rc2.orig/drivers/md/dm-ioctl.c 2005-09-20 04:00:41.000000000 +0100
+++ linux-2.6.14-rc2/drivers/md/dm-ioctl.c 2005-09-26 22:36:37.000000000 +0100
@@ -230,11 +230,20 @@
static void __hash_remove(struct hash_cell *hc)
{
+ struct dm_table *table;
+
/* remove from the dev hash */
list_del(&hc->uuid_list);
list_del(&hc->name_list);
unregister_with_devfs(hc);
dm_set_mdptr(hc->md, NULL);
+
+ table = dm_get_table(hc->md);
+ if (table) {
+ dm_table_event(table);
+ dm_table_put(table);
+ }
+
dm_put(hc->md);
if (hc->new_map)
dm_table_put(hc->new_map);
-
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