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-rw-r--r--fs/ocfs2/dlm/dlmcommon.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index dc8ea666efdb..d5a86fb81a49 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -49,6 +49,41 @@
49/* Intended to make it easier for us to switch out hash functions */ 49/* Intended to make it easier for us to switch out hash functions */
50#define dlm_lockid_hash(_n, _l) full_name_hash(_n, _l) 50#define dlm_lockid_hash(_n, _l) full_name_hash(_n, _l)
51 51
52enum dlm_mle_type {
53 DLM_MLE_BLOCK,
54 DLM_MLE_MASTER,
55 DLM_MLE_MIGRATION
56};
57
58struct dlm_lock_name {
59 u8 len;
60 u8 name[DLM_LOCKID_NAME_MAX];
61};
62
63struct dlm_master_list_entry {
64 struct list_head list;
65 struct list_head hb_events;
66 struct dlm_ctxt *dlm;
67 spinlock_t spinlock;
68 wait_queue_head_t wq;
69 atomic_t woken;
70 struct kref mle_refs;
71 int inuse;
72 unsigned long maybe_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
73 unsigned long vote_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
74 unsigned long response_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
75 unsigned long node_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
76 u8 master;
77 u8 new_master;
78 enum dlm_mle_type type;
79 struct o2hb_callback_func mle_hb_up;
80 struct o2hb_callback_func mle_hb_down;
81 union {
82 struct dlm_lock_resource *res;
83 struct dlm_lock_name name;
84 } u;
85};
86
52enum dlm_ast_type { 87enum dlm_ast_type {
53 DLM_AST = 0, 88 DLM_AST = 0,
54 DLM_BAST, 89 DLM_BAST,
@@ -101,6 +136,7 @@ struct dlm_ctxt
101 struct list_head purge_list; 136 struct list_head purge_list;
102 struct list_head pending_asts; 137 struct list_head pending_asts;
103 struct list_head pending_basts; 138 struct list_head pending_basts;
139 struct list_head tracking_list;
104 unsigned int purge_count; 140 unsigned int purge_count;
105 spinlock_t spinlock; 141 spinlock_t spinlock;
106 spinlock_t ast_lock; 142 spinlock_t ast_lock;
@@ -122,6 +158,9 @@ struct dlm_ctxt
122 atomic_t remote_resources; 158 atomic_t remote_resources;
123 atomic_t unknown_resources; 159 atomic_t unknown_resources;
124 160
161 struct dlm_debug_ctxt *dlm_debug_ctxt;
162 struct dentry *dlm_debugfs_subroot;
163
125 /* NOTE: Next three are protected by dlm_domain_lock */ 164 /* NOTE: Next three are protected by dlm_domain_lock */
126 struct kref dlm_refs; 165 struct kref dlm_refs;
127 enum dlm_ctxt_state dlm_state; 166 enum dlm_ctxt_state dlm_state;
@@ -270,6 +309,9 @@ struct dlm_lock_resource
270 struct list_head dirty; 309 struct list_head dirty;
271 struct list_head recovering; // dlm_recovery_ctxt.resources list 310 struct list_head recovering; // dlm_recovery_ctxt.resources list
272 311
312 /* Added during init and removed during release */
313 struct list_head tracking; /* dlm->tracking_list */
314
273 /* unused lock resources have their last_used stamped and are 315 /* unused lock resources have their last_used stamped and are
274 * put on a list for the dlm thread to run. */ 316 * put on a list for the dlm thread to run. */
275 unsigned long last_used; 317 unsigned long last_used;
@@ -963,9 +1005,16 @@ static inline void __dlm_wait_on_lockres(struct dlm_lock_resource *res)
963 DLM_LOCK_RES_MIGRATING)); 1005 DLM_LOCK_RES_MIGRATING));
964} 1006}
965 1007
1008/* create/destroy slab caches */
1009int dlm_init_master_caches(void);
1010void dlm_destroy_master_caches(void);
1011
1012int dlm_init_lock_cache(void);
1013void dlm_destroy_lock_cache(void);
966 1014
967int dlm_init_mle_cache(void); 1015int dlm_init_mle_cache(void);
968void dlm_destroy_mle_cache(void); 1016void dlm_destroy_mle_cache(void);
1017
969void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up); 1018void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up);
970int dlm_drop_lockres_ref(struct dlm_ctxt *dlm, 1019int dlm_drop_lockres_ref(struct dlm_ctxt *dlm,
971 struct dlm_lock_resource *res); 1020 struct dlm_lock_resource *res);