forked from luck/tmp_suning_uos_patched
6f7b056ea9
Now that the dlm exposes domain information to us, we don't need generic node up / node down callbacks. And since the DLM is only telling us when a node goes down unexpectedly, we no longer need to optimize away node down callbacks via the umount map. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* heartbeat.h
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*
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* Function prototypes
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*
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* Copyright (C) 2002, 2004 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef OCFS2_HEARTBEAT_H
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#define OCFS2_HEARTBEAT_H
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void ocfs2_init_node_maps(struct ocfs2_super *osb);
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void ocfs2_setup_hb_callbacks(struct ocfs2_super *osb);
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void ocfs2_stop_heartbeat(struct ocfs2_super *osb);
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/* node map functions - used to keep track of mounted and in-recovery
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* nodes. */
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void ocfs2_node_map_init(struct ocfs2_node_map *map);
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int ocfs2_node_map_is_empty(struct ocfs2_super *osb,
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struct ocfs2_node_map *map);
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void ocfs2_node_map_set_bit(struct ocfs2_super *osb,
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struct ocfs2_node_map *map,
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int bit);
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void ocfs2_node_map_clear_bit(struct ocfs2_super *osb,
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struct ocfs2_node_map *map,
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int bit);
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int ocfs2_node_map_test_bit(struct ocfs2_super *osb,
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struct ocfs2_node_map *map,
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int bit);
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int ocfs2_node_map_iterate(struct ocfs2_super *osb,
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struct ocfs2_node_map *map,
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int idx);
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static inline int ocfs2_node_map_first_set_bit(struct ocfs2_super *osb,
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struct ocfs2_node_map *map)
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{
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return ocfs2_node_map_iterate(osb, map, 0);
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}
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int ocfs2_recovery_map_set(struct ocfs2_super *osb,
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int num);
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void ocfs2_recovery_map_clear(struct ocfs2_super *osb,
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int num);
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/* returns 1 if bit is the only bit set in target, 0 otherwise */
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int ocfs2_node_map_is_only(struct ocfs2_super *osb,
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struct ocfs2_node_map *target,
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int bit);
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#endif /* OCFS2_HEARTBEAT_H */
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