2006-01-17 00:50:04 +08:00
|
|
|
/*
|
|
|
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
2006-05-19 03:09:15 +08:00
|
|
|
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
2006-01-17 00:50:04 +08:00
|
|
|
*
|
|
|
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
|
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
2006-09-01 23:05:15 +08:00
|
|
|
* of the GNU General Public License version 2.
|
2006-01-17 00:50:04 +08:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef __LOG_DOT_H__
|
|
|
|
|
#define __LOG_DOT_H__
|
|
|
|
|
|
2006-09-05 22:39:21 +08:00
|
|
|
#include <linux/list.h>
|
|
|
|
|
#include <linux/spinlock.h>
|
|
|
|
|
#include "incore.h"
|
|
|
|
|
|
2006-01-17 00:50:04 +08:00
|
|
|
/**
|
|
|
|
|
* gfs2_log_lock - acquire the right to mess with the log manager
|
|
|
|
|
* @sdp: the filesystem
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
|
2008-05-30 09:27:51 +08:00
|
|
|
__acquires(&sdp->sd_log_lock)
|
2006-01-17 00:50:04 +08:00
|
|
|
{
|
|
|
|
|
spin_lock(&sdp->sd_log_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* gfs2_log_unlock - release the right to mess with the log manager
|
|
|
|
|
* @sdp: the filesystem
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
|
2008-05-30 09:27:51 +08:00
|
|
|
__releases(&sdp->sd_log_lock)
|
2006-01-17 00:50:04 +08:00
|
|
|
{
|
|
|
|
|
spin_unlock(&sdp->sd_log_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
|
|
|
|
|
unsigned int value)
|
|
|
|
|
{
|
|
|
|
|
if (++value == sdp->sd_jdesc->jd_blocks) {
|
|
|
|
|
value = 0;
|
|
|
|
|
}
|
|
|
|
|
sdp->sd_log_head = sdp->sd_log_tail = value;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
|
|
|
|
|
unsigned int ssize);
|
|
|
|
|
|
|
|
|
|
int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
|
|
|
|
|
void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
|
2007-09-17 17:59:52 +08:00
|
|
|
void gfs2_log_incr_head(struct gfs2_sbd *sdp);
|
2006-01-17 00:50:04 +08:00
|
|
|
|
|
|
|
|
struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
|
|
|
|
|
struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
|
|
|
|
|
struct buffer_head *real);
|
2007-11-08 22:25:12 +08:00
|
|
|
void __gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
|
|
|
|
|
|
|
|
|
|
static inline void gfs2_log_flush(struct gfs2_sbd *sbd, struct gfs2_glock *gl)
|
|
|
|
|
{
|
|
|
|
|
if (!gl || test_bit(GLF_LFLUSH, &gl->gl_flags))
|
|
|
|
|
__gfs2_log_flush(sbd, gl);
|
|
|
|
|
}
|
|
|
|
|
|
2006-01-17 00:50:04 +08:00
|
|
|
void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
|
2007-10-15 23:29:05 +08:00
|
|
|
void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
|
2006-01-17 00:50:04 +08:00
|
|
|
|
|
|
|
|
void gfs2_log_shutdown(struct gfs2_sbd *sdp);
|
2006-11-24 00:06:35 +08:00
|
|
|
void gfs2_meta_syncfs(struct gfs2_sbd *sdp);
|
2007-11-09 18:01:41 +08:00
|
|
|
int gfs2_logd(void *data);
|
2006-01-17 00:50:04 +08:00
|
|
|
|
|
|
|
|
#endif /* __LOG_DOT_H__ */
|
