Commit | Line | Data |
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328970de | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fa60ce2c | 2 | /* |
ccd979bd MF |
3 | * heartbeat.c |
4 | * | |
45ee6d1e | 5 | * Register ourselves with the heartbeat service, keep our node maps |
ccd979bd MF |
6 | * up to date, and fire off recovery when needed. |
7 | * | |
8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
9 | */ |
10 | ||
702f3cf3 | 11 | #include <linux/bitmap.h> |
ccd979bd MF |
12 | #include <linux/fs.h> |
13 | #include <linux/types.h> | |
ccd979bd | 14 | #include <linux/highmem.h> |
ccd979bd | 15 | |
ccd979bd MF |
16 | #include <cluster/masklog.h> |
17 | ||
18 | #include "ocfs2.h" | |
19 | ||
20 | #include "alloc.h" | |
21 | #include "heartbeat.h" | |
22 | #include "inode.h" | |
23 | #include "journal.h" | |
b5770f98 | 24 | #include "ocfs2_trace.h" |
ccd979bd MF |
25 | |
26 | #include "buffer_head_io.h" | |
27 | ||
00600056 AB |
28 | /* special case -1 for now |
29 | * TODO: should *really* make sure the calling func never passes -1!! */ | |
30 | static void ocfs2_node_map_init(struct ocfs2_node_map *map) | |
31 | { | |
32 | map->num_nodes = OCFS2_NODE_MAP_MAX_NODES; | |
702f3cf3 | 33 | bitmap_zero(map->map, OCFS2_NODE_MAP_MAX_NODES); |
00600056 | 34 | } |
ccd979bd MF |
35 | |
36 | void ocfs2_init_node_maps(struct ocfs2_super *osb) | |
37 | { | |
38 | spin_lock_init(&osb->node_map_lock); | |
b4df6ed8 | 39 | ocfs2_node_map_init(&osb->osb_recovering_orphan_dirs); |
ccd979bd MF |
40 | } |
41 | ||
4670c46d | 42 | void ocfs2_do_node_down(int node_num, void *data) |
ccd979bd | 43 | { |
4670c46d JB |
44 | struct ocfs2_super *osb = data; |
45 | ||
ccd979bd MF |
46 | BUG_ON(osb->node_num == node_num); |
47 | ||
b5770f98 | 48 | trace_ocfs2_do_node_down(node_num); |
ccd979bd | 49 | |
4670c46d | 50 | if (!osb->cconn) { |
ccd979bd | 51 | /* |
4670c46d JB |
52 | * No cluster connection means we're not even ready to |
53 | * participate yet. We check the slots after the cluster | |
54 | * comes up, so we will notice the node death then. We | |
55 | * can safely ignore it here. | |
ccd979bd MF |
56 | */ |
57 | return; | |
58 | } | |
59 | ||
ccd979bd | 60 | ocfs2_recovery_thread(osb, node_num); |
ccd979bd MF |
61 | } |
62 | ||
ccd979bd MF |
63 | void ocfs2_node_map_set_bit(struct ocfs2_super *osb, |
64 | struct ocfs2_node_map *map, | |
65 | int bit) | |
66 | { | |
67 | if (bit==-1) | |
68 | return; | |
69 | BUG_ON(bit >= map->num_nodes); | |
70 | spin_lock(&osb->node_map_lock); | |
97d3b267 | 71 | set_bit(bit, map->map); |
ccd979bd MF |
72 | spin_unlock(&osb->node_map_lock); |
73 | } | |
74 | ||
ccd979bd MF |
75 | void ocfs2_node_map_clear_bit(struct ocfs2_super *osb, |
76 | struct ocfs2_node_map *map, | |
77 | int bit) | |
78 | { | |
79 | if (bit==-1) | |
80 | return; | |
81 | BUG_ON(bit >= map->num_nodes); | |
82 | spin_lock(&osb->node_map_lock); | |
97d3b267 | 83 | clear_bit(bit, map->map); |
ccd979bd MF |
84 | spin_unlock(&osb->node_map_lock); |
85 | } | |
86 | ||
87 | int ocfs2_node_map_test_bit(struct ocfs2_super *osb, | |
88 | struct ocfs2_node_map *map, | |
89 | int bit) | |
90 | { | |
91 | int ret; | |
92 | if (bit >= map->num_nodes) { | |
93 | mlog(ML_ERROR, "bit=%d map->num_nodes=%d\n", bit, map->num_nodes); | |
94 | BUG(); | |
95 | } | |
96 | spin_lock(&osb->node_map_lock); | |
97 | ret = test_bit(bit, map->map); | |
98 | spin_unlock(&osb->node_map_lock); | |
99 | return ret; | |
100 | } | |
101 |