1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Register ourselves with the heartbaet service, keep our node maps
6 * up to date, and fire off recovery when needed.
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
12 #include <linux/types.h>
13 #include <linux/highmem.h>
15 #include <cluster/masklog.h>
20 #include "heartbeat.h"
23 #include "ocfs2_trace.h"
25 #include "buffer_head_io.h"
27 static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
29 static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map,
32 /* special case -1 for now
33 * TODO: should *really* make sure the calling func never passes -1!! */
34 static void ocfs2_node_map_init(struct ocfs2_node_map *map)
36 map->num_nodes = OCFS2_NODE_MAP_MAX_NODES;
37 memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) *
38 sizeof(unsigned long));
41 void ocfs2_init_node_maps(struct ocfs2_super *osb)
43 spin_lock_init(&osb->node_map_lock);
44 ocfs2_node_map_init(&osb->osb_recovering_orphan_dirs);
47 void ocfs2_do_node_down(int node_num, void *data)
49 struct ocfs2_super *osb = data;
51 BUG_ON(osb->node_num == node_num);
53 trace_ocfs2_do_node_down(node_num);
57 * No cluster connection means we're not even ready to
58 * participate yet. We check the slots after the cluster
59 * comes up, so we will notice the node death then. We
60 * can safely ignore it here.
65 ocfs2_recovery_thread(osb, node_num);
68 static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
71 set_bit(bit, map->map);
74 void ocfs2_node_map_set_bit(struct ocfs2_super *osb,
75 struct ocfs2_node_map *map,
80 BUG_ON(bit >= map->num_nodes);
81 spin_lock(&osb->node_map_lock);
82 __ocfs2_node_map_set_bit(map, bit);
83 spin_unlock(&osb->node_map_lock);
86 static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map,
89 clear_bit(bit, map->map);
92 void ocfs2_node_map_clear_bit(struct ocfs2_super *osb,
93 struct ocfs2_node_map *map,
98 BUG_ON(bit >= map->num_nodes);
99 spin_lock(&osb->node_map_lock);
100 __ocfs2_node_map_clear_bit(map, bit);
101 spin_unlock(&osb->node_map_lock);
104 int ocfs2_node_map_test_bit(struct ocfs2_super *osb,
105 struct ocfs2_node_map *map,
109 if (bit >= map->num_nodes) {
110 mlog(ML_ERROR, "bit=%d map->num_nodes=%d\n", bit, map->num_nodes);
113 spin_lock(&osb->node_map_lock);
114 ret = test_bit(bit, map->map);
115 spin_unlock(&osb->node_map_lock);