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linux-next/fs/ocfs2/heartbeat.c
Christophe JAILLET 45ee6d1e93 ocfs2: fix a typo in a comment
s/heartbaet/heartbeat

Link: https://lkml.kernel.org/r/4d4a6786e8ad522bfad6d2401b7f6634f8af0e5d.1658436259.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29 18:12:36 -07:00

102 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* heartbeat.c
*
* Register ourselves with the heartbeat service, keep our node maps
* up to date, and fire off recovery when needed.
*
* Copyright (C) 2002, 2004 Oracle. All rights reserved.
*/
#include <linux/bitmap.h>
#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"
/* 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;
bitmap_zero(map->map, OCFS2_NODE_MAP_MAX_NODES);
}
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);
}
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);
set_bit(bit, map->map);
spin_unlock(&osb->node_map_lock);
}
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);
clear_bit(bit, map->map);
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;
}