#include <linux/module.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/ctype.h>
#include <linux/spinlock.h>
#include <linux/vmalloc.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/random.h>
#include <linux/delay.h>
#include <linux/socket.h>
#include <linux/kthread.h>
#include <linux/kobject.h>
#include <linux/kref.h>
#include <linux/kernel.h>
#include <linux/jhash.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
#include <linux/idr.h>
#include <linux/ratelimit.h>
#include <asm/uaccess.h>
#include <linux/dlm.h>
#include "config.h"

Data Structures
struct	dlm_rsbtable

struct	dlm_member

struct	dlm_recover

struct	dlm_args

struct	dlm_callback

struct	dlm_lkb

struct	dlm_rsb

struct	dlm_header

struct	dlm_message

struct	dlm_rcom

union	dlm_packet

struct	rcom_status

struct	rcom_config

struct	rcom_slot

struct	rcom_lock

struct	dlm_ls

struct	dlm_user_args

struct	dlm_user_proc

Macros
#define	DLM_INBUF_LEN 148

#define	log_print(fmt, args...) printk(KERN_ERR "dlm: "fmt"\n" , ##args)

#define	log_error(ls, fmt, args...) printk(KERN_ERR "dlm: %s: " fmt "\n", (ls)->ls_name , ##args)

#define	log_debug(ls, fmt, args...)

#define	log_limit(ls, fmt, args...)

#define	DLM_ASSERT(x, do)

#define	DLM_LKSTS_WAITING 1

#define	DLM_LKSTS_GRANTED 2

#define	DLM_LKSTS_CONVERT 3

#define	DLM_IFL_MSTCPY 0x00010000

#define	DLM_IFL_RESEND 0x00020000

#define	DLM_IFL_DEAD 0x00040000

#define	DLM_IFL_OVERLAP_UNLOCK 0x00080000

#define	DLM_IFL_OVERLAP_CANCEL 0x00100000

#define	DLM_IFL_ENDOFLIFE 0x00200000

#define	DLM_IFL_WATCH_TIMEWARN 0x00400000

#define	DLM_IFL_TIMEOUT_CANCEL 0x00800000

#define	DLM_IFL_DEADLOCK_CANCEL 0x01000000

#define	DLM_IFL_STUB_MS 0x02000000 /* magic number for m_flags */

#define	DLM_IFL_USER 0x00000001

#define	DLM_IFL_ORPHAN 0x00000002

#define	DLM_CALLBACKS_SIZE 6

#define	DLM_CB_CAST 0x00000001

#define	DLM_CB_BAST 0x00000002

#define	DLM_CB_SKIP 0x00000004

#define	DLM_LU_RECOVER_DIR 1

#define	DLM_LU_RECOVER_MASTER 2

#define	DLM_LU_MATCH 1

#define	DLM_LU_ADD 2

#define	R_REQUEST 0x00000001

#define	R_RECEIVE_REQUEST 0x00000002

#define	R_RECEIVE_RECOVER 0x00000004

#define	DLM_HEADER_MAJOR 0x00030000

#define	DLM_HEADER_MINOR 0x00000001

#define	DLM_HEADER_SLOTS 0x00000001

#define	DLM_MSG 1

#define	DLM_RCOM 2

#define	DLM_MSG_REQUEST 1

#define	DLM_MSG_CONVERT 2

#define	DLM_MSG_UNLOCK 3

#define	DLM_MSG_CANCEL 4

#define	DLM_MSG_REQUEST_REPLY 5

#define	DLM_MSG_CONVERT_REPLY 6

#define	DLM_MSG_UNLOCK_REPLY 7

#define	DLM_MSG_CANCEL_REPLY 8

#define	DLM_MSG_GRANT 9

#define	DLM_MSG_BAST 10

#define	DLM_MSG_LOOKUP 11

#define	DLM_MSG_REMOVE 12

#define	DLM_MSG_LOOKUP_REPLY 13

#define	DLM_MSG_PURGE 14

#define	DLM_RS_NODES 0x00000001

#define	DLM_RS_NODES_ALL 0x00000002

#define	DLM_RS_DIR 0x00000004

#define	DLM_RS_DIR_ALL 0x00000008

#define	DLM_RS_LOCKS 0x00000010

#define	DLM_RS_LOCKS_ALL 0x00000020

#define	DLM_RS_DONE 0x00000040

#define	DLM_RS_DONE_ALL 0x00000080

#define	DLM_RCOM_STATUS 1

#define	DLM_RCOM_NAMES 2

#define	DLM_RCOM_LOOKUP 3

#define	DLM_RCOM_LOCK 4

#define	DLM_RCOM_STATUS_REPLY 5

#define	DLM_RCOM_NAMES_REPLY 6

#define	DLM_RCOM_LOOKUP_REPLY 7

#define	DLM_RCOM_LOCK_REPLY 8

#define	DLM_RSF_NEED_SLOTS 0x00000001

#define	DLM_REMOVE_NAMES_MAX 8

#define	LSFL_RECOVER_STOP 0

#define	LSFL_RECOVER_DOWN 1

#define	LSFL_RECOVER_LOCK 2

#define	LSFL_RECOVER_WORK 3

#define	LSFL_RUNNING 4

#define	LSFL_RCOM_READY 5

#define	LSFL_RCOM_WAIT 6

#define	LSFL_UEVENT_WAIT 7

#define	LSFL_TIMEWARN 8

#define	LSFL_CB_DELAY 9

#define	LSFL_NODIR 10

#define	DLM_PROC_FLAGS_CLOSING 1

#define	DLM_PROC_FLAGS_COMPAT 2

Enumerations
enum	rsb_flags { RSB_MASTER_UNCERTAIN, RSB_VALNOTVALID, RSB_VALNOTVALID_PREV, RSB_NEW_MASTER, RSB_NEW_MASTER2, RSB_RECOVER_CONVERT, RSB_RECOVER_GRANT }

Functions
int	dlm_netlink_init (void)

void	dlm_netlink_exit (void)

void	dlm_timeout_warn (struct dlm_lkb *lkb)

int	dlm_plock_init (void)

void	dlm_plock_exit (void)

Macro Definition Documentation

#define DLM_ASSERT	(	x,
		do
	)

Value:

{ \
  if (!(x)) \
  { \
    printk(KERN_ERR "\nDLM:  Assertion failed on line %d of file %s\n" \
               "DLM:  assertion:  \"%s\"\n" \
               "DLM:  time = %lu\n", \
               __LINE__, __FILE__, #x, jiffies); \
    {do} \
    printk("\n"); \
    BUG(); \
    panic("DLM:  Record message above and reboot.\n"); \
  } \
}

Definition at line 83 of file dlm_internal.h.

#define DLM_CALLBACKS_SIZE 6

Definition at line 207 of file dlm_internal.h.

#define DLM_CB_BAST 0x00000002

Definition at line 210 of file dlm_internal.h.

#define DLM_CB_CAST 0x00000001

Definition at line 209 of file dlm_internal.h.

#define DLM_CB_SKIP 0x00000004

Definition at line 211 of file dlm_internal.h.

#define DLM_HEADER_MAJOR 0x00030000

Definition at line 360 of file dlm_internal.h.

#define DLM_HEADER_MINOR 0x00000001

Definition at line 361 of file dlm_internal.h.

#define DLM_HEADER_SLOTS 0x00000001

Definition at line 363 of file dlm_internal.h.

#define DLM_IFL_DEAD 0x00040000

Definition at line 196 of file dlm_internal.h.

#define DLM_IFL_DEADLOCK_CANCEL 0x01000000

Definition at line 202 of file dlm_internal.h.

#define DLM_IFL_ENDOFLIFE 0x00200000

Definition at line 199 of file dlm_internal.h.

#define DLM_IFL_MSTCPY 0x00010000

Definition at line 194 of file dlm_internal.h.

#define DLM_IFL_ORPHAN 0x00000002

Definition at line 205 of file dlm_internal.h.

#define DLM_IFL_OVERLAP_CANCEL 0x00100000

Definition at line 198 of file dlm_internal.h.

#define DLM_IFL_OVERLAP_UNLOCK 0x00080000

Definition at line 197 of file dlm_internal.h.

#define DLM_IFL_RESEND 0x00020000

Definition at line 195 of file dlm_internal.h.

#define DLM_IFL_STUB_MS 0x02000000 /* magic number for m_flags */

Definition at line 203 of file dlm_internal.h.

#define DLM_IFL_TIMEOUT_CANCEL 0x00800000

Definition at line 201 of file dlm_internal.h.

#define DLM_IFL_USER 0x00000001

Definition at line 204 of file dlm_internal.h.

#define DLM_IFL_WATCH_TIMEWARN 0x00400000

Definition at line 200 of file dlm_internal.h.

#define DLM_INBUF_LEN 148

Definition at line 51 of file dlm_internal.h.

#define DLM_LKSTS_CONVERT 3

Definition at line 190 of file dlm_internal.h.

#define DLM_LKSTS_GRANTED 2

Definition at line 189 of file dlm_internal.h.

#define DLM_LKSTS_WAITING 1

Definition at line 188 of file dlm_internal.h.

#define DLM_LU_ADD 2

Definition at line 322 of file dlm_internal.h.

#define DLM_LU_MATCH 1

Definition at line 321 of file dlm_internal.h.

#define DLM_LU_RECOVER_DIR 1

Definition at line 316 of file dlm_internal.h.

#define DLM_LU_RECOVER_MASTER 2

Definition at line 317 of file dlm_internal.h.

#define DLM_MSG 1

Definition at line 365 of file dlm_internal.h.

#define DLM_MSG_BAST 10

Definition at line 387 of file dlm_internal.h.

#define DLM_MSG_CANCEL 4

Definition at line 381 of file dlm_internal.h.

#define DLM_MSG_CANCEL_REPLY 8

Definition at line 385 of file dlm_internal.h.

#define DLM_MSG_CONVERT 2

Definition at line 379 of file dlm_internal.h.

#define DLM_MSG_CONVERT_REPLY 6

Definition at line 383 of file dlm_internal.h.

#define DLM_MSG_GRANT 9

Definition at line 386 of file dlm_internal.h.

#define DLM_MSG_LOOKUP 11

Definition at line 388 of file dlm_internal.h.

#define DLM_MSG_LOOKUP_REPLY 13

Definition at line 390 of file dlm_internal.h.

#define DLM_MSG_PURGE 14

Definition at line 391 of file dlm_internal.h.

#define DLM_MSG_REMOVE 12

Definition at line 389 of file dlm_internal.h.

#define DLM_MSG_REQUEST 1

Definition at line 378 of file dlm_internal.h.

#define DLM_MSG_REQUEST_REPLY 5

Definition at line 382 of file dlm_internal.h.

#define DLM_MSG_UNLOCK 3

Definition at line 380 of file dlm_internal.h.

#define DLM_MSG_UNLOCK_REPLY 7

Definition at line 384 of file dlm_internal.h.

#define DLM_PROC_FLAGS_CLOSING 1

Definition at line 672 of file dlm_internal.h.

#define DLM_PROC_FLAGS_COMPAT 2

Definition at line 673 of file dlm_internal.h.

#define DLM_RCOM 2

Definition at line 366 of file dlm_internal.h.

#define DLM_RCOM_LOCK 4

Definition at line 429 of file dlm_internal.h.

#define DLM_RCOM_LOCK_REPLY 8

Definition at line 433 of file dlm_internal.h.

#define DLM_RCOM_LOOKUP 3

Definition at line 428 of file dlm_internal.h.

#define DLM_RCOM_LOOKUP_REPLY 7

Definition at line 432 of file dlm_internal.h.

#define DLM_RCOM_NAMES 2

Definition at line 427 of file dlm_internal.h.

#define DLM_RCOM_NAMES_REPLY 6

Definition at line 431 of file dlm_internal.h.

#define DLM_RCOM_STATUS 1

Definition at line 426 of file dlm_internal.h.

#define DLM_RCOM_STATUS_REPLY 5

Definition at line 430 of file dlm_internal.h.

#define DLM_REMOVE_NAMES_MAX 8

Definition at line 506 of file dlm_internal.h.

#define DLM_RS_DIR 0x00000004

Definition at line 419 of file dlm_internal.h.

#define DLM_RS_DIR_ALL 0x00000008

Definition at line 420 of file dlm_internal.h.

#define DLM_RS_DONE 0x00000040

Definition at line 423 of file dlm_internal.h.

#define DLM_RS_DONE_ALL 0x00000080

Definition at line 424 of file dlm_internal.h.

#define DLM_RS_LOCKS 0x00000010

Definition at line 421 of file dlm_internal.h.

#define DLM_RS_LOCKS_ALL 0x00000020

Definition at line 422 of file dlm_internal.h.

#define DLM_RS_NODES 0x00000001

Definition at line 417 of file dlm_internal.h.

#define DLM_RS_NODES_ALL 0x00000002

Definition at line 418 of file dlm_internal.h.

#define DLM_RSF_NEED_SLOTS 0x00000001

Definition at line 451 of file dlm_internal.h.

#define log_debug	(	ls,
		fmt,
		args...
	)

Value:

do { \
    if (dlm_config.ci_log_debug) \
        printk(KERN_DEBUG "dlm: %s: " fmt "\n", \
               (ls)->ls_name , ##args); \
} while (0)

Definition at line 69 of file dlm_internal.h.

#define log_error	(	ls,
		fmt,
		args...
	)	printk(KERN_ERR "dlm: %s: " fmt "\n", (ls)->ls_name , ##args)

Definition at line 66 of file dlm_internal.h.

#define log_limit	(	ls,
		fmt,
		args...
	)

Value:

do { \
    if (dlm_config.ci_log_debug) \
        printk_ratelimited(KERN_DEBUG "dlm: %s: " fmt "\n", \
            (ls)->ls_name , ##args); \
} while (0)

Definition at line 76 of file dlm_internal.h.

#define log_print	(	fmt,
		args...
	)	printk(KERN_ERR "dlm: "fmt"\n" , ##args)

Definition at line 64 of file dlm_internal.h.

#define LSFL_CB_DELAY 9

Definition at line 652 of file dlm_internal.h.

#define LSFL_NODIR 10

Definition at line 653 of file dlm_internal.h.

#define LSFL_RCOM_READY 5

Definition at line 648 of file dlm_internal.h.

#define LSFL_RCOM_WAIT 6

Definition at line 649 of file dlm_internal.h.

#define LSFL_RECOVER_DOWN 1

Definition at line 643 of file dlm_internal.h.

#define LSFL_RECOVER_LOCK 2

Definition at line 644 of file dlm_internal.h.

#define LSFL_RECOVER_STOP 0

Definition at line 642 of file dlm_internal.h.

#define LSFL_RECOVER_WORK 3

Definition at line 645 of file dlm_internal.h.

#define LSFL_RUNNING 4

Definition at line 646 of file dlm_internal.h.

#define LSFL_TIMEWARN 8

Definition at line 651 of file dlm_internal.h.

#define LSFL_UEVENT_WAIT 7

Definition at line 650 of file dlm_internal.h.

#define R_RECEIVE_RECOVER 0x00000004

Definition at line 328 of file dlm_internal.h.

#define R_RECEIVE_REQUEST 0x00000002

Definition at line 327 of file dlm_internal.h.

#define R_REQUEST 0x00000001

Definition at line 326 of file dlm_internal.h.

Enumeration Type Documentation

enum rsb_flags

Enumerator:

RSB_MASTER_UNCERTAIN
RSB_VALNOTVALID
RSB_VALNOTVALID_PREV
RSB_NEW_MASTER
RSB_NEW_MASTER2
RSB_RECOVER_CONVERT
RSB_RECOVER_GRANT

Definition at line 332 of file dlm_internal.h.

Function Documentation

void dlm_netlink_exit ( void )

Definition at line 87 of file netlink.c.

int dlm_netlink_init ( void )

Definition at line 82 of file netlink.c.

void dlm_plock_exit ( void )

Definition at line 498 of file plock.c.

int dlm_plock_init ( void )

Definition at line 482 of file plock.c.

void dlm_timeout_warn ( struct dlm_lkb * lkb )

Definition at line 115 of file netlink.c.

Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation