Messages in this thread Patch in this message | | | Date | Fri, 18 Nov 2005 15:00:34 +0000 | From | Alasdair G Kergon <> | Subject | [PATCH] device-mapper ioctl: event on rename |
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After changing the name of a mapped device, trigger a dm event. (For userspace multipath tools.)
From: "goggin, edward" <egoggin@emc.com> Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
Index: linux-2.6.14-rc2/drivers/md/dm-ioctl.c =================================================================== --- linux-2.6.14-rc2.orig/drivers/md/dm-ioctl.c 2005-11-09 22:37:16.000000000 +0000 +++ linux-2.6.14-rc2/drivers/md/dm-ioctl.c 2005-11-10 23:05:33.000000000 +0000 @@ -270,6 +270,7 @@ static int dm_hash_rename(const char *ol { char *new_name, *old_name; struct hash_cell *hc; + struct dm_table *table; /* * duplicate new. @@ -317,6 +318,15 @@ static int dm_hash_rename(const char *ol /* rename the device node in devfs */ register_with_devfs(hc); + /* + * Wake up any dm event waiters. + */ + table = dm_get_table(hc->md); + if (table) { + dm_table_event(table); + dm_table_put(table); + } + up_write(&_hash_lock); kfree(old_name); return 0; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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