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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/block/drbd/drbd_state_change.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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#ifndef DRBD_STATE_CHANGE_H

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#define DRBD_STATE_CHANGE_H

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struct drbd_resource_state_change {

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	struct drbd_resource *resource;

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	enum drbd_role role[2];

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	bool susp[2];

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	bool susp_nod[2];

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	bool susp_fen[2];

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};

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struct drbd_device_state_change {

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	struct drbd_device *device;

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	enum drbd_disk_state disk_state[2];

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};

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struct drbd_connection_state_change {

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	struct drbd_connection *connection;

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	enum drbd_conns cstate[2];  /* drbd9: enum drbd_conn_state */

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	enum drbd_role peer_role[2];

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};

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struct drbd_peer_device_state_change {

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	struct drbd_peer_device *peer_device;

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	enum drbd_disk_state disk_state[2];

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	enum drbd_conns repl_state[2];  /* drbd9: enum drbd_repl_state */

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	bool resync_susp_user[2];

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	bool resync_susp_peer[2];

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	bool resync_susp_dependency[2];

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};

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struct drbd_state_change {

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	struct list_head list;

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	unsigned int n_devices;

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	unsigned int n_connections;

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	struct drbd_resource_state_change resource[1];

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	struct drbd_device_state_change *devices;

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	struct drbd_connection_state_change *connections;

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	struct drbd_peer_device_state_change *peer_devices;

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};

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extern struct drbd_state_change *remember_old_state(struct drbd_resource *, gfp_t);

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extern void copy_old_to_new_state_change(struct drbd_state_change *);

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extern void forget_state_change(struct drbd_state_change *);

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extern int notify_resource_state_change(struct sk_buff *,

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					 unsigned int,

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					 void *,

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					 enum drbd_notification_type type);

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extern int notify_connection_state_change(struct sk_buff *,

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					   unsigned int,

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					   void *,

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					   enum drbd_notification_type type);

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extern int notify_device_state_change(struct sk_buff *,

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				       unsigned int,

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				       void *,

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				       enum drbd_notification_type type);

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extern int notify_peer_device_state_change(struct sk_buff *,

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					    unsigned int,

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					    void *,

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					    enum drbd_notification_type type);

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#endif  /* DRBD_STATE_CHANGE_H */

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