drivers/md/dm-uevent.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Device Mapper Uevent Support
0004  *
0005  * Copyright IBM Corporation, 2007
0006  *  Author: Mike Anderson <andmike@linux.vnet.ibm.com>
0007  */
0008 #ifndef DM_UEVENT_H
0009 #define DM_UEVENT_H
0010
0011 enum dm_uevent_type {
0012     DM_UEVENT_PATH_FAILED,
0013     DM_UEVENT_PATH_REINSTATED,
0014 };
0015
0016 #ifdef CONFIG_DM_UEVENT
0017
0018 extern int dm_uevent_init(void);
0019 extern void dm_uevent_exit(void);
0020 extern void dm_send_uevents(struct list_head *events, struct kobject *kobj);
0021 extern void dm_path_uevent(enum dm_uevent_type event_type,
0022                struct dm_target *ti, const char *path,
0023                unsigned nr_valid_paths);
0024
0025 #else
0026
0027 static inline int dm_uevent_init(void)
0028 {
0029     return 0;
0030 }
0031 static inline void dm_uevent_exit(void)
0032 {
0033 }
0034 static inline void dm_send_uevents(struct list_head *events,
0035                    struct kobject *kobj)
0036 {
0037 }
0038 static inline void dm_path_uevent(enum dm_uevent_type event_type,
0039                   struct dm_target *ti, const char *path,
0040                   unsigned nr_valid_paths)
0041 {
0042 }
0043
0044 #endif  /* CONFIG_DM_UEVENT */
0045
0046 #endif  /* DM_UEVENT_H */