1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* -*- mode: c; c-basic-offset: 8; -*-
3 * vim: noexpandtab sw=8 ts=8 sts=0:
7 * Register ourselves with the heartbaet service, keep our node maps
8 * up to date, and fire off recovery when needed.
10 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
14 #include <linux/types.h>
15 #include <linux/highmem.h>
17 #include <cluster/masklog.h>
22 #include "heartbeat.h"
25 #include "ocfs2_trace.h"
27 #include "buffer_head_io.h"
29 static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map
*map
,
31 static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map
*map
,
34 /* special case -1 for now
35 * TODO: should *really* make sure the calling func never passes -1!! */
36 static void ocfs2_node_map_init(struct ocfs2_node_map
*map
)
38 map
->num_nodes
= OCFS2_NODE_MAP_MAX_NODES
;
39 memset(map
->map
, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES
) *
40 sizeof(unsigned long));
43 void ocfs2_init_node_maps(struct ocfs2_super
*osb
)
45 spin_lock_init(&osb
->node_map_lock
);
46 ocfs2_node_map_init(&osb
->osb_recovering_orphan_dirs
);
49 void ocfs2_do_node_down(int node_num
, void *data
)
51 struct ocfs2_super
*osb
= data
;
53 BUG_ON(osb
->node_num
== node_num
);
55 trace_ocfs2_do_node_down(node_num
);
59 * No cluster connection means we're not even ready to
60 * participate yet. We check the slots after the cluster
61 * comes up, so we will notice the node death then. We
62 * can safely ignore it here.
67 ocfs2_recovery_thread(osb
, node_num
);
70 static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map
*map
,
73 set_bit(bit
, map
->map
);
76 void ocfs2_node_map_set_bit(struct ocfs2_super
*osb
,
77 struct ocfs2_node_map
*map
,
82 BUG_ON(bit
>= map
->num_nodes
);
83 spin_lock(&osb
->node_map_lock
);
84 __ocfs2_node_map_set_bit(map
, bit
);
85 spin_unlock(&osb
->node_map_lock
);
88 static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map
*map
,
91 clear_bit(bit
, map
->map
);
94 void ocfs2_node_map_clear_bit(struct ocfs2_super
*osb
,
95 struct ocfs2_node_map
*map
,
100 BUG_ON(bit
>= map
->num_nodes
);
101 spin_lock(&osb
->node_map_lock
);
102 __ocfs2_node_map_clear_bit(map
, bit
);
103 spin_unlock(&osb
->node_map_lock
);
106 int ocfs2_node_map_test_bit(struct ocfs2_super
*osb
,
107 struct ocfs2_node_map
*map
,
111 if (bit
>= map
->num_nodes
) {
112 mlog(ML_ERROR
, "bit=%d map->num_nodes=%d\n", bit
, map
->num_nodes
);
115 spin_lock(&osb
->node_map_lock
);
116 ret
= test_bit(bit
, map
->map
);
117 spin_unlock(&osb
->node_map_lock
);