diff options
Diffstat (limited to 'fs/gfs2/locking/dlm/lock_dlm.h')
-rw-r--r-- | fs/gfs2/locking/dlm/lock_dlm.h | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h deleted file mode 100644 index 3c98e7c6f93b..000000000000 --- a/fs/gfs2/locking/dlm/lock_dlm.h +++ /dev/null | |||
@@ -1,166 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | ||
3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. | ||
4 | * | ||
5 | * This copyrighted material is made available to anyone wishing to use, | ||
6 | * modify, copy, or redistribute it subject to the terms and conditions | ||
7 | * of the GNU General Public License version 2. | ||
8 | */ | ||
9 | |||
10 | #ifndef LOCK_DLM_DOT_H | ||
11 | #define LOCK_DLM_DOT_H | ||
12 | |||
13 | #include <linux/module.h> | ||
14 | #include <linux/slab.h> | ||
15 | #include <linux/spinlock.h> | ||
16 | #include <linux/types.h> | ||
17 | #include <linux/string.h> | ||
18 | #include <linux/list.h> | ||
19 | #include <linux/socket.h> | ||
20 | #include <linux/delay.h> | ||
21 | #include <linux/kthread.h> | ||
22 | #include <linux/kobject.h> | ||
23 | #include <linux/fcntl.h> | ||
24 | #include <linux/wait.h> | ||
25 | #include <net/sock.h> | ||
26 | |||
27 | #include <linux/dlm.h> | ||
28 | #include <linux/dlm_plock.h> | ||
29 | #include <linux/lm_interface.h> | ||
30 | |||
31 | /* | ||
32 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a | ||
33 | * prefix of lock_dlm_ gets awkward. Externally, GFS refers to this module | ||
34 | * as "lock_dlm". | ||
35 | */ | ||
36 | |||
37 | #define GDLM_STRNAME_BYTES 24 | ||
38 | #define GDLM_LVB_SIZE 32 | ||
39 | #define GDLM_DROP_COUNT 0 | ||
40 | #define GDLM_DROP_PERIOD 60 | ||
41 | #define GDLM_NAME_LEN 128 | ||
42 | |||
43 | /* GFS uses 12 bytes to identify a resource (32 bit type + 64 bit number). | ||
44 | We sprintf these numbers into a 24 byte string of hex values to make them | ||
45 | human-readable (to make debugging simpler.) */ | ||
46 | |||
47 | struct gdlm_strname { | ||
48 | unsigned char name[GDLM_STRNAME_BYTES]; | ||
49 | unsigned short namelen; | ||
50 | }; | ||
51 | |||
52 | enum { | ||
53 | DFL_BLOCK_LOCKS = 0, | ||
54 | DFL_SPECTATOR = 1, | ||
55 | DFL_WITHDRAW = 2, | ||
56 | }; | ||
57 | |||
58 | struct gdlm_ls { | ||
59 | u32 id; | ||
60 | int jid; | ||
61 | int first; | ||
62 | int first_done; | ||
63 | unsigned long flags; | ||
64 | struct kobject kobj; | ||
65 | char clustername[GDLM_NAME_LEN]; | ||
66 | char fsname[GDLM_NAME_LEN]; | ||
67 | int fsflags; | ||
68 | dlm_lockspace_t *dlm_lockspace; | ||
69 | lm_callback_t fscb; | ||
70 | struct gfs2_sbd *sdp; | ||
71 | int recover_jid; | ||
72 | int recover_jid_done; | ||
73 | int recover_jid_status; | ||
74 | spinlock_t async_lock; | ||
75 | struct list_head delayed; | ||
76 | struct list_head submit; | ||
77 | u32 all_locks_count; | ||
78 | wait_queue_head_t wait_control; | ||
79 | struct task_struct *thread; | ||
80 | wait_queue_head_t thread_wait; | ||
81 | }; | ||
82 | |||
83 | enum { | ||
84 | LFL_NOBLOCK = 0, | ||
85 | LFL_NOCACHE = 1, | ||
86 | LFL_DLM_UNLOCK = 2, | ||
87 | LFL_DLM_CANCEL = 3, | ||
88 | LFL_SYNC_LVB = 4, | ||
89 | LFL_FORCE_PROMOTE = 5, | ||
90 | LFL_REREQUEST = 6, | ||
91 | LFL_ACTIVE = 7, | ||
92 | LFL_INLOCK = 8, | ||
93 | LFL_CANCEL = 9, | ||
94 | LFL_NOBAST = 10, | ||
95 | LFL_HEADQUE = 11, | ||
96 | LFL_UNLOCK_DELETE = 12, | ||
97 | LFL_AST_WAIT = 13, | ||
98 | }; | ||
99 | |||
100 | struct gdlm_lock { | ||
101 | struct gdlm_ls *ls; | ||
102 | struct lm_lockname lockname; | ||
103 | struct gdlm_strname strname; | ||
104 | char *lvb; | ||
105 | struct dlm_lksb lksb; | ||
106 | |||
107 | s16 cur; | ||
108 | s16 req; | ||
109 | s16 prev_req; | ||
110 | u32 lkf; /* dlm flags DLM_LKF_ */ | ||
111 | unsigned long flags; /* lock_dlm flags LFL_ */ | ||
112 | |||
113 | struct list_head delay_list; /* delayed */ | ||
114 | struct gdlm_lock *hold_null; /* NL lock for hold_lvb */ | ||
115 | }; | ||
116 | |||
117 | #define gdlm_assert(assertion, fmt, args...) \ | ||
118 | do { \ | ||
119 | if (unlikely(!(assertion))) { \ | ||
120 | printk(KERN_EMERG "lock_dlm: fatal assertion failed \"%s\"\n" \ | ||
121 | "lock_dlm: " fmt "\n", \ | ||
122 | #assertion, ##args); \ | ||
123 | BUG(); \ | ||
124 | } \ | ||
125 | } while (0) | ||
126 | |||
127 | #define log_print(lev, fmt, arg...) printk(lev "lock_dlm: " fmt "\n" , ## arg) | ||
128 | #define log_info(fmt, arg...) log_print(KERN_INFO , fmt , ## arg) | ||
129 | #define log_error(fmt, arg...) log_print(KERN_ERR , fmt , ## arg) | ||
130 | #ifdef LOCK_DLM_LOG_DEBUG | ||
131 | #define log_debug(fmt, arg...) log_print(KERN_DEBUG , fmt , ## arg) | ||
132 | #else | ||
133 | #define log_debug(fmt, arg...) | ||
134 | #endif | ||
135 | |||
136 | /* sysfs.c */ | ||
137 | |||
138 | int gdlm_sysfs_init(void); | ||
139 | void gdlm_sysfs_exit(void); | ||
140 | int gdlm_kobject_setup(struct gdlm_ls *, struct kobject *); | ||
141 | void gdlm_kobject_release(struct gdlm_ls *); | ||
142 | |||
143 | /* thread.c */ | ||
144 | |||
145 | int gdlm_init_threads(struct gdlm_ls *); | ||
146 | void gdlm_release_threads(struct gdlm_ls *); | ||
147 | |||
148 | /* lock.c */ | ||
149 | |||
150 | void gdlm_submit_delayed(struct gdlm_ls *); | ||
151 | unsigned int gdlm_do_lock(struct gdlm_lock *); | ||
152 | |||
153 | int gdlm_get_lock(void *, struct lm_lockname *, void **); | ||
154 | void gdlm_put_lock(void *); | ||
155 | unsigned int gdlm_lock(void *, unsigned int, unsigned int, unsigned int); | ||
156 | unsigned int gdlm_unlock(void *, unsigned int); | ||
157 | void gdlm_cancel(void *); | ||
158 | int gdlm_hold_lvb(void *, char **); | ||
159 | void gdlm_unhold_lvb(void *, char *); | ||
160 | |||
161 | /* mount.c */ | ||
162 | |||
163 | extern const struct lm_lockops gdlm_ops; | ||
164 | |||
165 | #endif | ||
166 | |||