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ed4878e8a4
The previous patch I wrote for reclaiming unlinked dinodes had some shortcomings and did not prevent all hangs. This version is much cleaner and more logical, and has passed very difficult testing. Sorry for the churn. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 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 version 2.
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*/
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#ifndef __LOG_DOT_H__
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#define __LOG_DOT_H__
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include "incore.h"
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/**
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* gfs2_log_lock - acquire the right to mess with the log manager
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* @sdp: the filesystem
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*
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*/
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static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
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__acquires(&sdp->sd_log_lock)
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{
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spin_lock(&sdp->sd_log_lock);
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}
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/**
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* gfs2_log_unlock - release the right to mess with the log manager
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* @sdp: the filesystem
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*
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*/
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static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
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__releases(&sdp->sd_log_lock)
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{
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spin_unlock(&sdp->sd_log_lock);
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}
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static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
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unsigned int value)
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{
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if (++value == sdp->sd_jdesc->jd_blocks) {
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value = 0;
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}
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sdp->sd_log_head = sdp->sd_log_tail = value;
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}
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extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
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unsigned int ssize);
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extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
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extern void gfs2_log_incr_head(struct gfs2_sbd *sdp);
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extern struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
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extern struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
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struct buffer_head *real);
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extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
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extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
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extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
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extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
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extern void gfs2_meta_syncfs(struct gfs2_sbd *sdp);
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extern int gfs2_logd(void *data);
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#endif /* __LOG_DOT_H__ */
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