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c63e31c2cc
This is one of the changes related to journal recovery I mentioned a couple weeks ago. We can get into a situation where there are only readonly nodes currently mounting the fs, but there are journals that need to be recovered. Since the readonly nodes can't recover journals, the next rw mounter needs to go through and check all journals and recover any that are dirty (i.e. what the first node to mount the fs does). This rw mounter needs to skip the journals held by the existing readonly nodes. Skipping those journals amounts to using the TRY flag on the journal locks so acquiring the lock of a journal held by a readonly node will fail instead of blocking indefinately. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*/
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#ifndef __RECOVERY_DOT_H__
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#define __RECOVERY_DOT_H__
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static inline void gfs2_replay_incr_blk(struct gfs2_sbd *sdp, unsigned int *blk)
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{
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if (++*blk == sdp->sd_jdesc->jd_blocks)
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*blk = 0;
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}
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int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
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struct buffer_head **bh);
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int gfs2_revoke_add(struct gfs2_sbd *sdp, uint64_t blkno, unsigned int where);
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int gfs2_revoke_check(struct gfs2_sbd *sdp, uint64_t blkno, unsigned int where);
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void gfs2_revoke_clean(struct gfs2_sbd *sdp);
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int gfs2_find_jhead(struct gfs2_jdesc *jd,
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struct gfs2_log_header *head);
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int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
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void gfs2_check_journals(struct gfs2_sbd *sdp);
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#endif /* __RECOVERY_DOT_H__ */
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