119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* heartbeat.c
|
||
|
|
*
|
||
|
|
* Register ourselves with the heartbaet service, keep our node maps
|
||
|
|
* up to date, and fire off recovery when needed.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2002, 2004 Oracle. All rights reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/fs.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/highmem.h>
|
||
|
|
|
||
|
|
#include <cluster/masklog.h>
|
||
|
|
|
||
|
|
#include "ocfs2.h"
|
||
|
|
|
||
|
|
#include "alloc.h"
|
||
|
|
#include "heartbeat.h"
|
||
|
|
#include "inode.h"
|
||
|
|
#include "journal.h"
|
||
|
|
#include "ocfs2_trace.h"
|
||
|
|
|
||
|
|
#include "buffer_head_io.h"
|
||
|
|
|
||
|
|
static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
|
||
|
|
int bit);
|
||
|
|
static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map,
|
||
|
|
int bit);
|
||
|
|
|
||
|
|
/* special case -1 for now
|
||
|
|
* TODO: should *really* make sure the calling func never passes -1!! */
|
||
|
|
static void ocfs2_node_map_init(struct ocfs2_node_map *map)
|
||
|
|
{
|
||
|
|
map->num_nodes = OCFS2_NODE_MAP_MAX_NODES;
|
||
|
|
memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) *
|
||
|
|
sizeof(unsigned long));
|
||
|
|
}
|
||
|
|
|
||
|
|
void ocfs2_init_node_maps(struct ocfs2_super *osb)
|
||
|
|
{
|
||
|
|
spin_lock_init(&osb->node_map_lock);
|
||
|
|
ocfs2_node_map_init(&osb->osb_recovering_orphan_dirs);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ocfs2_do_node_down(int node_num, void *data)
|
||
|
|
{
|
||
|
|
struct ocfs2_super *osb = data;
|
||
|
|
|
||
|
|
BUG_ON(osb->node_num == node_num);
|
||
|
|
|
||
|
|
trace_ocfs2_do_node_down(node_num);
|
||
|
|
|
||
|
|
if (!osb->cconn) {
|
||
|
|
/*
|
||
|
|
* No cluster connection means we're not even ready to
|
||
|
|
* participate yet. We check the slots after the cluster
|
||
|
|
* comes up, so we will notice the node death then. We
|
||
|
|
* can safely ignore it here.
|
||
|
|
*/
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ocfs2_recovery_thread(osb, node_num);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map,
|
||
|
|
int bit)
|
||
|
|
{
|
||
|
|
set_bit(bit, map->map);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ocfs2_node_map_set_bit(struct ocfs2_super *osb,
|
||
|
|
struct ocfs2_node_map *map,
|
||
|
|
int bit)
|
||
|
|
{
|
||
|
|
if (bit==-1)
|
||
|
|
return;
|
||
|
|
BUG_ON(bit >= map->num_nodes);
|
||
|
|
spin_lock(&osb->node_map_lock);
|
||
|
|
__ocfs2_node_map_set_bit(map, bit);
|
||
|
|
spin_unlock(&osb->node_map_lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map,
|
||
|
|
int bit)
|
||
|
|
{
|
||
|
|
clear_bit(bit, map->map);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ocfs2_node_map_clear_bit(struct ocfs2_super *osb,
|
||
|
|
struct ocfs2_node_map *map,
|
||
|
|
int bit)
|
||
|
|
{
|
||
|
|
if (bit==-1)
|
||
|
|
return;
|
||
|
|
BUG_ON(bit >= map->num_nodes);
|
||
|
|
spin_lock(&osb->node_map_lock);
|
||
|
|
__ocfs2_node_map_clear_bit(map, bit);
|
||
|
|
spin_unlock(&osb->node_map_lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ocfs2_node_map_test_bit(struct ocfs2_super *osb,
|
||
|
|
struct ocfs2_node_map *map,
|
||
|
|
int bit)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
if (bit >= map->num_nodes) {
|
||
|
|
mlog(ML_ERROR, "bit=%d map->num_nodes=%d\n", bit, map->num_nodes);
|
||
|
|
BUG();
|
||
|
|
}
|
||
|
|
spin_lock(&osb->node_map_lock);
|
||
|
|
ret = test_bit(bit, map->map);
|
||
|
|
spin_unlock(&osb->node_map_lock);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|