drivers/md/dm-uevent.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Device Mapper Uevent Support
   4  *
   5  * Copyright IBM Corporation, 2007
   6  *      Author: Mike Anderson <andmike@linux.vnet.ibm.com>
   7  */
   8 #ifndef DM_UEVENT_H
   9 #define DM_UEVENT_H
  10
  11 enum dm_uevent_type {
  12         DM_UEVENT_PATH_FAILED,
  13         DM_UEVENT_PATH_REINSTATED,
  14 };
  15
  16 #ifdef CONFIG_DM_UEVENT
  17
  18 extern int dm_uevent_init(void);
  19 extern void dm_uevent_exit(void);
  20 extern void dm_send_uevents(struct list_head *events, struct kobject *kobj);
  21 extern void dm_path_uevent(enum dm_uevent_type event_type,
  22                            struct dm_target *ti, const char *path,
  23                            unsigned nr_valid_paths);
  24
  25 #else
  26
  27 static inline int dm_uevent_init(void)
  28 {
  29         return 0;
  30 }
  31 static inline void dm_uevent_exit(void)
  32 {
  33 }
  34 static inline void dm_send_uevents(struct list_head *events,
  35                                    struct kobject *kobj)
  36 {
  37 }
  38 static inline void dm_path_uevent(enum dm_uevent_type event_type,
  39                                   struct dm_target *ti, const char *path,
  40                                   unsigned nr_valid_paths)
  41 {
  42 }
  43
  44 #endif  /* CONFIG_DM_UEVENT */
  45
  46 #endif  /* DM_UEVENT_H */