ocfs2/dlm: Improve lockres counts

[pandora-kernel.git] / fs / ocfs2 / dlm / dlmcommon.h

diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index bb53714..e5026ce 100644 (file)
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -52,16 +52,18 @@
 enum dlm_mle_type {
        DLM_MLE_BLOCK,
        DLM_MLE_MASTER,
-       DLM_MLE_MIGRATION
+       DLM_MLE_MIGRATION,
+       DLM_MLE_NUM_TYPES
 };
 
 struct dlm_lock_name {
-       u8 len;
-       u8 name[DLM_LOCKID_NAME_MAX];
+       unsigned int hash;
+       unsigned int len;
+       unsigned char name[DLM_LOCKID_NAME_MAX];
 };
 
 struct dlm_master_list_entry {
-       struct list_head list;
+       struct hlist_node master_hash_node;
        struct list_head hb_events;
        struct dlm_ctxt *dlm;
        spinlock_t spinlock;
@@ -79,8 +81,8 @@ struct dlm_master_list_entry {
        struct o2hb_callback_func mle_hb_up;
        struct o2hb_callback_func mle_hb_down;
        union {
-               struct dlm_lock_resource *res;
-               struct dlm_lock_name name;
+               struct dlm_lock_resource *mleres;
+               struct dlm_lock_name mlename;
        } u;
 };
 
@@ -151,13 +153,14 @@ struct dlm_ctxt
        unsigned long recovery_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
        struct dlm_recovery_ctxt reco;
        spinlock_t master_lock;
-       struct list_head master_list;
+       struct hlist_head **master_hash;
        struct list_head mle_hb_events;
 
        /* these give a really vague idea of the system load */
-       atomic_t local_resources;
-       atomic_t remote_resources;
-       atomic_t unknown_resources;
+       atomic_t mle_tot_count[DLM_MLE_NUM_TYPES];
+       atomic_t mle_cur_count[DLM_MLE_NUM_TYPES];
+       atomic_t res_tot_count;
+       atomic_t res_cur_count;
 
        struct dlm_debug_ctxt *dlm_debug_ctxt;
        struct dentry *dlm_debugfs_subroot;
@@ -195,6 +198,13 @@ static inline struct hlist_head *dlm_lockres_hash(struct dlm_ctxt *dlm, unsigned
        return dlm->lockres_hash[(i / DLM_BUCKETS_PER_PAGE) % DLM_HASH_PAGES] + (i % DLM_BUCKETS_PER_PAGE);
 }
 
+static inline struct hlist_head *dlm_master_hash(struct dlm_ctxt *dlm,
+                                                unsigned i)
+{
+       return dlm->master_hash[(i / DLM_BUCKETS_PER_PAGE) % DLM_HASH_PAGES] +
+                       (i % DLM_BUCKETS_PER_PAGE);
+}
+
 /* these keventd work queue items are for less-frequently
  * called functions that cannot be directly called from the
  * net message handlers for some reason, usually because
@@ -1008,6 +1018,9 @@ static inline void __dlm_wait_on_lockres(struct dlm_lock_resource *res)
                                          DLM_LOCK_RES_MIGRATING));
 }
 
+void __dlm_unlink_mle(struct dlm_ctxt *dlm, struct dlm_master_list_entry *mle);
+void __dlm_insert_mle(struct dlm_ctxt *dlm, struct dlm_master_list_entry *mle);
+
 /* create/destroy slab caches */
 int dlm_init_master_caches(void);
 void dlm_destroy_master_caches(void);