*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
-** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+** Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
#include <linux/jhash.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/dlm.h>
#include "config.h"
-#define DLM_LOCKSPACE_LEN 64
-
/* Size of the temp buffer midcomms allocates on the stack.
We try to make this large enough so most messages fit.
FIXME: should sctp make this unnecessary? */
} \
}
-#define DLM_FAKE_USER_AST ERR_PTR(-EINVAL)
-
struct dlm_direntry {
struct list_head list;
struct dlm_dirtable {
struct list_head list;
- rwlock_t lock;
+ spinlock_t lock;
};
struct dlm_rsbtable {
struct list_head list;
struct list_head toss;
- rwlock_t lock;
+ spinlock_t lock;
};
struct dlm_lkbtable {
struct dlm_recover {
struct list_head list;
- int *nodeids;
+ int *nodeids; /* nodeids of all members */
int node_count;
+ int *new; /* nodeids of new members */
+ int new_count;
uint64_t seq;
};
struct dlm_args {
uint32_t flags;
- void *astaddr;
- long astparam;
- void *bastaddr;
+ void (*astfn) (void *astparam);
+ void *astparam;
+ void (*bastfn) (void *astparam, int mode);
int mode;
struct dlm_lksb *lksb;
unsigned long timeout;
struct list_head lkb_astqueue; /* need ast to be sent */
struct list_head lkb_ownqueue; /* list of locks for a process */
struct list_head lkb_time_list;
- unsigned long lkb_timestamp;
+ ktime_t lkb_time_bast; /* for debugging */
+ ktime_t lkb_timestamp;
unsigned long lkb_timeout_cs;
char *lkb_lvbptr;
struct dlm_lksb *lkb_lksb; /* caller's status block */
- void *lkb_astaddr; /* caller's ast function */
- void *lkb_bastaddr; /* caller's bast function */
- long lkb_astparam; /* caller's ast arg */
+ void (*lkb_astfn) (void *astparam);
+ void (*lkb_bastfn) (void *astparam, int mode);
+ union {
+ void *lkb_astparam; /* caller's ast arg */
+ struct dlm_user_args *lkb_ua;
+ };
};
};
struct rcom_config {
- uint32_t rf_lvblen;
- uint32_t rf_lsflags;
- uint64_t rf_unused;
+ __le32 rf_lvblen;
+ __le32 rf_lsflags;
+ __le64 rf_unused;
};
struct rcom_lock {
uint32_t ls_global_id; /* global unique lockspace ID */
uint32_t ls_exflags;
int ls_lvblen;
- int ls_count; /* reference count */
+ int ls_count; /* refcount of processes in
+ the dlm using this ls */
+ int ls_create_count; /* create/release refcount */
unsigned long ls_flags; /* LSFL_ */
+ unsigned long ls_scan_time;
struct kobject ls_kobj;
struct dlm_rsbtable *ls_rsbtbl;
struct dentry *ls_debug_rsb_dentry; /* debugfs */
struct dentry *ls_debug_waiters_dentry; /* debugfs */
struct dentry *ls_debug_locks_dentry; /* debugfs */
+ struct dentry *ls_debug_all_dentry; /* debugfs */
wait_queue_head_t ls_uevent_wait; /* user part of join/leave */
int ls_uevent_result;
struct rw_semaphore ls_recv_active; /* block dlm_recv */
struct list_head ls_requestqueue;/* queue remote requests */
struct mutex ls_requestqueue_mutex;
- char *ls_recover_buf;
+ struct dlm_rcom *ls_recover_buf;
int ls_recover_nodeid; /* for debugging */
uint64_t ls_rcom_seq;
spinlock_t ls_rcom_spin;
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);
#ifdef CONFIG_DLM_DEBUG
int dlm_register_debugfs(void);