LXR linux/drivers/block/drbd/drbd_state

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef DRBD_STATE_CHANGE_H
   3#define DRBD_STATE_CHANGE_H
   4
   5struct drbd_resource_state_change {
   6        struct drbd_resource *resource;
   7        enum drbd_role role[2];
   8        bool susp[2];
   9        bool susp_nod[2];
  10        bool susp_fen[2];
  11};
  12
  13struct drbd_device_state_change {
  14        struct drbd_device *device;
  15        enum drbd_disk_state disk_state[2];
  16};
  17
  18struct drbd_connection_state_change {
  19        struct drbd_connection *connection;
  20        enum drbd_conns cstate[2];  /* drbd9: enum drbd_conn_state */
  21        enum drbd_role peer_role[2];
  22};
  23
  24struct drbd_peer_device_state_change {
  25        struct drbd_peer_device *peer_device;
  26        enum drbd_disk_state disk_state[2];
  27        enum drbd_conns repl_state[2];  /* drbd9: enum drbd_repl_state */
  28        bool resync_susp_user[2];
  29        bool resync_susp_peer[2];
  30        bool resync_susp_dependency[2];
  31};
  32
  33struct drbd_state_change {
  34        struct list_head list;
  35        unsigned int n_devices;
  36        unsigned int n_connections;
  37        struct drbd_resource_state_change resource[1];
  38        struct drbd_device_state_change *devices;
  39        struct drbd_connection_state_change *connections;
  40        struct drbd_peer_device_state_change *peer_devices;
  41};
  42
  43extern struct drbd_state_change *remember_old_state(struct drbd_resource *, gfp_t);
  44extern void copy_old_to_new_state_change(struct drbd_state_change *);
  45extern void forget_state_change(struct drbd_state_change *);
  46
  47extern void notify_resource_state_change(struct sk_buff *,
  48                                         unsigned int,
  49                                         struct drbd_resource_state_change *,
  50                                         enum drbd_notification_type type);
  51extern void notify_connection_state_change(struct sk_buff *,
  52                                           unsigned int,
  53                                           struct drbd_connection_state_change *,
  54                                           enum drbd_notification_type type);
  55extern void notify_device_state_change(struct sk_buff *,
  56                                       unsigned int,
  57                                       struct drbd_device_state_change *,
  58                                       enum drbd_notification_type type);
  59extern void notify_peer_device_state_change(struct sk_buff *,
  60                                            unsigned int,
  61                                            struct drbd_peer_device_state_change *,
  62                                            enum drbd_notification_type type);
  63
  64#endif  /* DRBD_STATE_CHANGE_H */
  65