You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
1.7 KiB
73 lines
1.7 KiB
17 years ago
|
/*
|
||
|
|
* Device Mapper Uevent Support (dm-uevent)
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License as published by the
|
||
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
||
|
|
* option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
*
|
||
|
|
* Copyright IBM Corporation, 2007
|
||
|
|
* Author: Mike Anderson <andmike@linux.vnet.ibm.com>
|
||
|
|
*/
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include <linux/kobject.h>
|
||
|
|
|
||
|
|
#include "dm.h"
|
||
|
|
#include "dm-uevent.h"
|
||
|
|
|
||
|
|
#define DM_MSG_PREFIX "uevent"
|
||
|
|
|
||
|
|
static struct kmem_cache *_dm_event_cache;
|
||
|
|
|
||
|
|
struct dm_uevent {
|
||
|
|
struct mapped_device *md;
|
||
|
|
enum kobject_action action;
|
||
|
|
struct kobj_uevent_env ku_env;
|
||
|
|
struct list_head elist;
|
||
|
|
};
|
||
|
|
|
||
|
|
static void dm_uevent_free(struct dm_uevent *event)
|
||
|
|
{
|
||
|
|
kmem_cache_free(_dm_event_cache, event);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct dm_uevent *dm_uevent_alloc(struct mapped_device *md)
|
||
|
|
{
|
||
|
|
struct dm_uevent *event;
|
||
|
|
|
||
|
|
event = kmem_cache_zalloc(_dm_event_cache, GFP_ATOMIC);
|
||
|
|
if (!event)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
INIT_LIST_HEAD(&event->elist);
|
||
|
|
event->md = md;
|
||
|
|
|
||
|
|
return event;
|
||
|
|
}
|
||
|
|
|
||
|
|
int dm_uevent_init(void)
|
||
|
|
{
|
||
|
|
_dm_event_cache = KMEM_CACHE(dm_uevent, 0);
|
||
|
|
if (!_dm_event_cache)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
DMINFO("version 1.0.3");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void dm_uevent_exit(void)
|
||
|
|
{
|
||
|
|
kmem_cache_destroy(_dm_event_cache);
|
||
|
|
}
|