2 * Device Mapper Uevent Support (dm-uevent)
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 * Copyright IBM Corporation, 2007
21 #include <linux/list.h>
22 #include <linux/slab.h>
23 #include <linux/kobject.h>
26 #include "dm-uevent.h"
28 #define DM_MSG_PREFIX "uevent"
30 static struct kmem_cache *_dm_event_cache;
33 struct mapped_device *md;
34 enum kobject_action action;
35 struct kobj_uevent_env ku_env;
36 struct list_head elist;
39 static void dm_uevent_free(struct dm_uevent *event)
41 kmem_cache_free(_dm_event_cache, event);
44 static struct dm_uevent *dm_uevent_alloc(struct mapped_device *md)
46 struct dm_uevent *event;
48 event = kmem_cache_zalloc(_dm_event_cache, GFP_ATOMIC);
52 INIT_LIST_HEAD(&event->elist);
58 int dm_uevent_init(void)
60 _dm_event_cache = KMEM_CACHE(dm_uevent, 0);
64 DMINFO("version 1.0.3");
69 void dm_uevent_exit(void)
71 kmem_cache_destroy(_dm_event_cache);