[linux-2.6-block.git] / drivers / md / dm-uevent.h

/*
 * Device Mapper Uevent Support
 *
 * 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>
 */
#ifndef DM_UEVENT_H
#define DM_UEVENT_H

enum dm_uevent_type {
	DM_UEVENT_PATH_FAILED,
	DM_UEVENT_PATH_REINSTATED,
};

#ifdef CONFIG_DM_UEVENT

extern int dm_uevent_init(void);
extern void dm_uevent_exit(void);
extern void dm_send_uevents(struct list_head *events, struct kobject *kobj);
extern void dm_path_uevent(enum dm_uevent_type event_type,
			   struct dm_target *ti, const char *path,
			   unsigned nr_valid_paths);

#else

static inline int dm_uevent_init(void)
{
	return 0;
}
static inline void dm_uevent_exit(void)
{
}
static inline void dm_send_uevents(struct list_head *events,
				   struct kobject *kobj)
{
}
static inline void dm_path_uevent(enum dm_uevent_type event_type,
				  struct dm_target *ti, const char *path,
				  unsigned nr_valid_paths)
{
}

#endif	/* CONFIG_DM_UEVENT */

#endif	/* DM_UEVENT_H */
Commit	Line	Data
51e5b2bd MA	1	/*
	2	* Device Mapper Uevent Support
	3	*
	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.
	8	*
	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.
	13	*
	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.
	17	*
	18	* Copyright IBM Corporation, 2007
	19	* Author: Mike Anderson <andmike@linux.vnet.ibm.com>
	20	*/
	21	#ifndef DM_UEVENT_H
	22	#define DM_UEVENT_H
	23
7a8c3d3b MA	24	enum dm_uevent_type {
	25	DM_UEVENT_PATH_FAILED,
	26	DM_UEVENT_PATH_REINSTATED,
	27	};
	28
51e5b2bd MA	29	#ifdef CONFIG_DM_UEVENT
	30
	31	extern int dm_uevent_init(void);
	32	extern void dm_uevent_exit(void);
7a8c3d3b MA	33	extern void dm_send_uevents(struct list_head events, struct kobject kobj);
	34	extern void dm_path_uevent(enum dm_uevent_type event_type,
	35	struct dm_target ti, const char path,
	36	unsigned nr_valid_paths);
51e5b2bd MA	37
	38	#else
	39
	40	static inline int dm_uevent_init(void)
	41	{
	42	return 0;
	43	}
	44	static inline void dm_uevent_exit(void)
	45	{
	46	}
7a8c3d3b MA	47	static inline void dm_send_uevents(struct list_head *events,
	48	struct kobject *kobj)
	49	{
	50	}
	51	static inline void dm_path_uevent(enum dm_uevent_type event_type,
	52	struct dm_target ti, const char path,
	53	unsigned nr_valid_paths)
	54	{
	55	}
51e5b2bd MA	56
	57	#endif /* CONFIG_DM_UEVENT */
	58
	59	#endif /* DM_UEVENT_H */