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-rw-r--r--drivers/block/drbd/drbd_state_change.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_state_change.h b/drivers/block/drbd/drbd_state_change.h
new file mode 100644
index 000000000..d5b0479bc
--- /dev/null
+++ b/drivers/block/drbd/drbd_state_change.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef DRBD_STATE_CHANGE_H
+#define DRBD_STATE_CHANGE_H
+
+struct drbd_resource_state_change {
+ struct drbd_resource *resource;
+ enum drbd_role role[2];
+ bool susp[2];
+ bool susp_nod[2];
+ bool susp_fen[2];
+};
+
+struct drbd_device_state_change {
+ struct drbd_device *device;
+ enum drbd_disk_state disk_state[2];
+};
+
+struct drbd_connection_state_change {
+ struct drbd_connection *connection;
+ enum drbd_conns cstate[2]; /* drbd9: enum drbd_conn_state */
+ enum drbd_role peer_role[2];
+};
+
+struct drbd_peer_device_state_change {
+ struct drbd_peer_device *peer_device;
+ enum drbd_disk_state disk_state[2];
+ enum drbd_conns repl_state[2]; /* drbd9: enum drbd_repl_state */
+ bool resync_susp_user[2];
+ bool resync_susp_peer[2];
+ bool resync_susp_dependency[2];
+};
+
+struct drbd_state_change {
+ struct list_head list;
+ unsigned int n_devices;
+ unsigned int n_connections;
+ struct drbd_resource_state_change resource[1];
+ struct drbd_device_state_change *devices;
+ struct drbd_connection_state_change *connections;
+ struct drbd_peer_device_state_change *peer_devices;
+};
+
+extern struct drbd_state_change *remember_old_state(struct drbd_resource *, gfp_t);
+extern void copy_old_to_new_state_change(struct drbd_state_change *);
+extern void forget_state_change(struct drbd_state_change *);
+
+extern int notify_resource_state_change(struct sk_buff *,
+ unsigned int,
+ struct drbd_resource_state_change *,
+ enum drbd_notification_type type);
+extern int notify_connection_state_change(struct sk_buff *,
+ unsigned int,
+ struct drbd_connection_state_change *,
+ enum drbd_notification_type type);
+extern int notify_device_state_change(struct sk_buff *,
+ unsigned int,
+ struct drbd_device_state_change *,
+ enum drbd_notification_type type);
+extern int notify_peer_device_state_change(struct sk_buff *,
+ unsigned int,
+ struct drbd_peer_device_state_change *,
+ enum drbd_notification_type type);
+
+#endif /* DRBD_STATE_CHANGE_H */