mon_client.h | Explore in Territory

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FS_CEPH_MON_CLIENT_H
#define _FS_CEPH_MON_CLIENT_H

#include <linux/completion.h>
#include <linux/kref.h>
#include <linux/rbtree.h>

#include <linux/ceph/messenger.h>

struct ceph_client;
struct ceph_mount_args;
struct ceph_auth_client;

/*
 * The monitor map enumerates the set of all monitors.
 */
struct ceph_monmap { … };

struct ceph_mon_client;
struct ceph_mon_generic_request;


/*
 * Generic mechanism for resending monitor requests.
 */
ceph_monc_request_func_t;

/* a pending monitor request */
struct ceph_mon_request { … };

ceph_monc_callback_t;

/*
 * ceph_mon_generic_request is being used for the statfs and
 * mon_get_version requests which are being done a bit differently
 * because we need to get data back to the caller
 */
struct ceph_mon_generic_request { … };

struct ceph_mon_client { … };

extern int ceph_monmap_contains(struct ceph_monmap *m,
				struct ceph_entity_addr *addr);

extern int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl);
extern void ceph_monc_stop(struct ceph_mon_client *monc);
extern void ceph_monc_reopen_session(struct ceph_mon_client *monc);

enum { … };

extern const char *ceph_sub_str[];

/*
 * The model here is to indicate that we need a new map of at least
 * epoch @epoch, and also call in when we receive a map.  We will
 * periodically rerequest the map from the monitor cluster until we
 * get what we want.
 */
bool ceph_monc_want_map(struct ceph_mon_client *monc, int sub, u32 epoch,
			bool continuous);
void ceph_monc_got_map(struct ceph_mon_client *monc, int sub, u32 epoch);
void ceph_monc_renew_subs(struct ceph_mon_client *monc);

extern int ceph_monc_wait_osdmap(struct ceph_mon_client *monc, u32 epoch,
				 unsigned long timeout);

int ceph_monc_do_statfs(struct ceph_mon_client *monc, u64 data_pool,
			struct ceph_statfs *buf);

int ceph_monc_get_version(struct ceph_mon_client *monc, const char *what,
			  u64 *newest);
int ceph_monc_get_version_async(struct ceph_mon_client *monc, const char *what,
				ceph_monc_callback_t cb, u64 private_data);

int ceph_monc_blocklist_add(struct ceph_mon_client *monc,
			    struct ceph_entity_addr *client_addr);

extern int ceph_monc_open_session(struct ceph_mon_client *monc);

extern int ceph_monc_validate_auth(struct ceph_mon_client *monc);

#endif
linux/include/linux/ceph/mon_client.h
