userdlm.h File Reference

#include <linux/module.h>
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/workqueue.h>

Go to the source code of this file.

Data Structures
struct	user_lock_res
struct	dlmfs_inode_private
struct	dlmfs_filp_private

Macros
#define	USER_LOCK_ATTACHED
#define	USER_LOCK_BUSY
#define	USER_LOCK_BLOCKED
#define	USER_LOCK_IN_TEARDOWN
#define	USER_LOCK_QUEUED
#define	USER_LOCK_IN_CANCEL   (0x00000020)
#define	USER_DLM_LOCK_ID_MAX_LEN   32
#define	DLMFS_MAGIC   0x76a9f425

Functions
void	user_dlm_lock_res_init (struct user_lock_res *lockres, struct dentry *dentry)
int	user_dlm_destroy_lock (struct user_lock_res *lockres)
int	user_dlm_cluster_lock (struct user_lock_res *lockres, int level, int lkm_flags)
void	user_dlm_cluster_unlock (struct user_lock_res *lockres, int level)
void	user_dlm_write_lvb (struct inode *inode, const char *val, unsigned int len)
ssize_t	user_dlm_read_lvb (struct inode *inode, char *val, unsigned int len)
struct ocfs2_cluster_connection *	user_dlm_register (struct qstr *name)
void	user_dlm_unregister (struct ocfs2_cluster_connection *conn)
void	user_dlm_set_locking_protocol (void)

Variables
struct workqueue_struct *	user_dlm_worker

Macro Definition Documentation

#define DLMFS_MAGIC   0x76a9f425

Definition at line 105 of file userdlm.h.

#define USER_DLM_LOCK_ID_MAX_LEN   32

Definition at line 48 of file userdlm.h.

#define USER_LOCK_ATTACHED

Value:

(0x00000001) /* we have initialized
                           * the lvb */

Definition at line 36 of file userdlm.h.

#define USER_LOCK_BLOCKED

Value:

(0x00000004) /* blocked waiting to
                          * downconvert*/

Definition at line 38 of file userdlm.h.

#define USER_LOCK_BUSY

Value:

(0x00000002) /* we are currently in
                           * dlm_lock */

Definition at line 37 of file userdlm.h.

#define USER_LOCK_IN_CANCEL   (0x00000020)

Definition at line 41 of file userdlm.h.

#define USER_LOCK_IN_TEARDOWN

Value:

(0x00000008) /* we're currently
                          * destroying this
                          * lock. */

Definition at line 39 of file userdlm.h.

#define USER_LOCK_QUEUED

Value:

(0x00000010) /* lock is on the
                          * workqueue */

Definition at line 40 of file userdlm.h.

Function Documentation

int user_dlm_cluster_lock	(	struct user_lock_res *	lockres,
		int	level,
		int	lkm_flags
	)

Definition at line 425 of file userdlm.c.

void user_dlm_cluster_unlock	(	struct user_lock_res *	lockres,
		int	level
	)

Definition at line 529 of file userdlm.c.

int user_dlm_destroy_lock

(

struct user_lock_res *

lockres

)

Definition at line 606 of file userdlm.c.

void user_dlm_lock_res_init	(	struct user_lock_res *	lockres,
		struct dentry *	dentry
	)

Definition at line 586 of file userdlm.c.

ssize_t user_dlm_read_lvb	(	struct inode *	inode,
		char *	val,
		unsigned int	len
	)

Definition at line 563 of file userdlm.c.

struct ocfs2_cluster_connection* user_dlm_register ( struct qstr *  name )

read

Definition at line 670 of file userdlm.c.

void user_dlm_set_locking_protocol

(

void

)

Definition at line 665 of file userdlm.c.

void user_dlm_unregister

(

struct ocfs2_cluster_connection *

conn

)

Definition at line 685 of file userdlm.c.

void user_dlm_write_lvb	(	struct inode *	inode,
		const char *	val,
		unsigned int	len
	)

Definition at line 545 of file userdlm.c.

Variable Documentation

struct workqueue_struct* user_dlm_worker

Definition at line 65 of file dlmfs.c.