#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/file.h>
#include <linux/kthread.h>
#include <linux/configfs.h>
#include <linux/random.h>
#include <linux/crc32.h>
#include <linux/time.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
#include "heartbeat.h"
#include "tcp.h"
#include "nodemanager.h"
#include "quorum.h"
#include "masklog.h"

Data Structures
struct	o2hb_debug_buf

struct	o2hb_callback

struct	o2hb_node_event

struct	o2hb_disk_slot

struct	o2hb_region

struct	o2hb_bio_wait_ctxt

struct	o2hb_region_attribute

struct	o2hb_heartbeat_group

struct	o2hb_heartbeat_group_attribute

Macros
#define	O2HB_DB_TYPE_LIVENODES 0

#define	O2HB_DB_TYPE_LIVEREGIONS 1

#define	O2HB_DB_TYPE_QUORUMREGIONS 2

#define	O2HB_DB_TYPE_FAILEDREGIONS 3

#define	O2HB_DB_TYPE_REGION_LIVENODES 4

#define	O2HB_DB_TYPE_REGION_NUMBER 5

#define	O2HB_DB_TYPE_REGION_ELAPSED_TIME 6

#define	O2HB_DB_TYPE_REGION_PINNED 7

#define	O2HB_DEBUG_DIR "o2hb"

#define	O2HB_DEBUG_LIVENODES "livenodes"

#define	O2HB_DEBUG_LIVEREGIONS "live_regions"

#define	O2HB_DEBUG_QUORUMREGIONS "quorum_regions"

#define	O2HB_DEBUG_FAILEDREGIONS "failed_regions"

#define	O2HB_DEBUG_REGION_NUMBER "num"

#define	O2HB_DEBUG_REGION_ELAPSED_TIME "elapsed_time_in_ms"

#define	O2HB_DEBUG_REGION_PINNED "pinned"

#define	O2HB_DEFAULT_BLOCK_BITS 9

#define	O2HB_PIN_CUT_OFF 3

#define	ERRSTR1 "Another node is heartbeating on device"

#define	ERRSTR2 "Heartbeat generation mismatch on device"

#define	ERRSTR3 "Heartbeat sequence mismatch on device"

Enumerations
enum	o2hb_heartbeat_modes { O2HB_HEARTBEAT_LOCAL = 0, O2HB_HEARTBEAT_GLOBAL, O2HB_HEARTBEAT_NUM_MODES }

Functions
void	o2hb_exit (void)

int	o2hb_init (void)

void	o2hb_fill_node_map (unsigned long *map, unsigned bytes)

	EXPORT_SYMBOL_GPL (o2hb_fill_node_map)

struct config_group *	o2hb_alloc_hb_set (void)

void	o2hb_free_hb_set (struct config_group *group)

void	o2hb_setup_callback (struct o2hb_callback_func hc, enum o2hb_callback_type type, o2hb_cb_func func, void *data, int priority)

	EXPORT_SYMBOL_GPL (o2hb_setup_callback)

void	o2hb_region_dec_user (const char *region_uuid)

int	o2hb_register_callback (const char region_uuid, struct o2hb_callback_func hc)

	EXPORT_SYMBOL_GPL (o2hb_register_callback)

void	o2hb_unregister_callback (const char region_uuid, struct o2hb_callback_func hc)

	EXPORT_SYMBOL_GPL (o2hb_unregister_callback)

int	o2hb_check_node_heartbeating (u8 node_num)

	EXPORT_SYMBOL_GPL (o2hb_check_node_heartbeating)

int	o2hb_check_node_heartbeating_from_callback (u8 node_num)

	EXPORT_SYMBOL_GPL (o2hb_check_node_heartbeating_from_callback)

int	o2hb_check_local_node_heartbeating (void)

	EXPORT_SYMBOL_GPL (o2hb_check_local_node_heartbeating)

void	o2hb_stop_all_regions (void)

	EXPORT_SYMBOL_GPL (o2hb_stop_all_regions)

int	o2hb_get_all_regions (char *region_uuids, u8 max_regions)

	EXPORT_SYMBOL_GPL (o2hb_get_all_regions)

int	o2hb_global_heartbeat_active (void)

	EXPORT_SYMBOL (o2hb_global_heartbeat_active)

Variables
char *	o2hb_heartbeat_mode_desc [O2HB_HEARTBEAT_NUM_MODES]

unsigned int	o2hb_dead_threshold = O2HB_DEFAULT_DEAD_THRESHOLD

unsigned int	o2hb_heartbeat_mode = O2HB_HEARTBEAT_LOCAL

unsigned int	o2hb_dependent_users

Macro Definition Documentation

#define ERRSTR1 "Another node is heartbeating on device"

#define ERRSTR2 "Heartbeat generation mismatch on device"

#define ERRSTR3 "Heartbeat sequence mismatch on device"

#define O2HB_DB_TYPE_FAILEDREGIONS 3

Definition at line 81 of file heartbeat.c.

#define O2HB_DB_TYPE_LIVENODES 0

Definition at line 78 of file heartbeat.c.

#define O2HB_DB_TYPE_LIVEREGIONS 1

Definition at line 79 of file heartbeat.c.

#define O2HB_DB_TYPE_QUORUMREGIONS 2

Definition at line 80 of file heartbeat.c.

#define O2HB_DB_TYPE_REGION_ELAPSED_TIME 6

Definition at line 84 of file heartbeat.c.

#define O2HB_DB_TYPE_REGION_LIVENODES 4

Definition at line 82 of file heartbeat.c.

#define O2HB_DB_TYPE_REGION_NUMBER 5

Definition at line 83 of file heartbeat.c.

#define O2HB_DB_TYPE_REGION_PINNED 7

Definition at line 85 of file heartbeat.c.

#define O2HB_DEBUG_DIR "o2hb"

Definition at line 98 of file heartbeat.c.

#define O2HB_DEBUG_FAILEDREGIONS "failed_regions"

Definition at line 102 of file heartbeat.c.

#define O2HB_DEBUG_LIVENODES "livenodes"

Definition at line 99 of file heartbeat.c.

#define O2HB_DEBUG_LIVEREGIONS "live_regions"

Definition at line 100 of file heartbeat.c.

#define O2HB_DEBUG_QUORUMREGIONS "quorum_regions"

Definition at line 101 of file heartbeat.c.

#define O2HB_DEBUG_REGION_ELAPSED_TIME "elapsed_time_in_ms"

Definition at line 104 of file heartbeat.c.

#define O2HB_DEBUG_REGION_NUMBER "num"

Definition at line 103 of file heartbeat.c.

#define O2HB_DEBUG_REGION_PINNED "pinned"

Definition at line 105 of file heartbeat.c.

#define O2HB_DEFAULT_BLOCK_BITS 9

Definition at line 121 of file heartbeat.c.

#define O2HB_PIN_CUT_OFF 3

Definition at line 151 of file heartbeat.c.

Enumeration Type Documentation

enum o2hb_heartbeat_modes

Enumerator:

O2HB_HEARTBEAT_LOCAL
O2HB_HEARTBEAT_GLOBAL
O2HB_HEARTBEAT_NUM_MODES

Definition at line 123 of file heartbeat.c.

Function Documentation

EXPORT_SYMBOL ( o2hb_global_heartbeat_active )

EXPORT_SYMBOL_GPL ( o2hb_fill_node_map )

EXPORT_SYMBOL_GPL ( o2hb_setup_callback )

EXPORT_SYMBOL_GPL ( o2hb_register_callback )

EXPORT_SYMBOL_GPL ( o2hb_unregister_callback )

EXPORT_SYMBOL_GPL ( o2hb_check_node_heartbeating )

EXPORT_SYMBOL_GPL ( o2hb_check_node_heartbeating_from_callback )

EXPORT_SYMBOL_GPL ( o2hb_check_local_node_heartbeating )

EXPORT_SYMBOL_GPL ( o2hb_stop_all_regions )

EXPORT_SYMBOL_GPL ( o2hb_get_all_regions )

struct config_group* o2hb_alloc_hb_set ( void )

read

Definition at line 2328 of file heartbeat.c.

int o2hb_check_local_node_heartbeating ( void )

Definition at line 2615 of file heartbeat.c.

int o2hb_check_node_heartbeating ( u8 node_num )

Definition at line 2581 of file heartbeat.c.

int o2hb_check_node_heartbeating_from_callback ( u8 node_num )

Definition at line 2597 of file heartbeat.c.

void o2hb_exit ( void )

Definition at line 1304 of file heartbeat.c.

void o2hb_fill_node_map	(	unsigned long *	map,
		unsigned	bytes
	)

Definition at line 1441 of file heartbeat.c.

void o2hb_free_hb_set ( struct config_group * group )

Definition at line 2347 of file heartbeat.c.

int o2hb_get_all_regions	(	char *	region_uuids,
		u8	max_regions
	)

Definition at line 2649 of file heartbeat.c.

int o2hb_global_heartbeat_active ( void )

Definition at line 2674 of file heartbeat.c.

int o2hb_init ( void )

Definition at line 1406 of file heartbeat.c.

void o2hb_region_dec_user ( const char * region_uuid )

Definition at line 2490 of file heartbeat.c.

int o2hb_register_callback	(	const char *	region_uuid,
		struct o2hb_callback_func *	hc
	)

Definition at line 2512 of file heartbeat.c.

void o2hb_setup_callback	(	struct o2hb_callback_func *	hc,
		enum o2hb_callback_type	type,
		o2hb_cb_func *	func,
		void *	data,
		int	priority
	)

Definition at line 2363 of file heartbeat.c.

void o2hb_stop_all_regions ( void )

Definition at line 2634 of file heartbeat.c.

void o2hb_unregister_callback	(	const char *	region_uuid,
		struct o2hb_callback_func *	hc
	)

Definition at line 2558 of file heartbeat.c.

Variable Documentation

unsigned int o2hb_dead_threshold = O2HB_DEFAULT_DEAD_THRESHOLD

Definition at line 134 of file heartbeat.c.

unsigned int o2hb_dependent_users

Definition at line 143 of file heartbeat.c.

unsigned int o2hb_heartbeat_mode = O2HB_HEARTBEAT_LOCAL

Definition at line 135 of file heartbeat.c.

char* o2hb_heartbeat_mode_desc[O2HB_HEARTBEAT_NUM_MODES]

Initial value:

= {
        "local",    
        "global",   
}

Definition at line 129 of file heartbeat.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation