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