1/*
 2 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 3 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 4 *
 5 * This copyrighted material is made available to anyone wishing to use,
 6 * modify, copy, or redistribute it subject to the terms and conditions
 7 * of the GNU General Public License version 2.
 8 */
 9
10#ifndef __LOG_DOT_H__
11#define __LOG_DOT_H__
12
13#include <linux/list.h>
14#include <linux/spinlock.h>
15#include <linux/writeback.h>
16#include "incore.h"
 
17
18/**
19 * gfs2_log_lock - acquire the right to mess with the log manager
20 * @sdp: the filesystem
21 *
22 */
23
24static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
25__acquires(&sdp->sd_log_lock)
26{
27	spin_lock(&sdp->sd_log_lock);
28}
29
30/**
31 * gfs2_log_unlock - release the right to mess with the log manager
32 * @sdp: the filesystem
33 *
34 */
35
36static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
37__releases(&sdp->sd_log_lock)
38{
39	spin_unlock(&sdp->sd_log_lock);
40}
41
42static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
43					  unsigned int value)
44{
45	if (++value == sdp->sd_jdesc->jd_blocks) {
46		value = 0;
47	}
48	sdp->sd_log_head = sdp->sd_log_tail = value;
49}
50
51static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
52{
53	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
54
55	if (!test_bit(GIF_ORDERED, &ip->i_flags)) {
 
 
 
56		spin_lock(&sdp->sd_ordered_lock);
57		if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags))
58			list_add(&ip->i_ordered, &sdp->sd_log_le_ordered);
59		spin_unlock(&sdp->sd_ordered_lock);
60	}
61}
 
62extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
63extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
64			    unsigned int ssize);
65
 
66extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
67extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
 
 
 
 
68extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
69extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
70extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
 
71
72extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
73extern void gfs2_meta_syncfs(struct gfs2_sbd *sdp);
74extern int gfs2_logd(void *data);
75extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
 
76extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
77
78#endif /* __LOG_DOT_H__ */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 4 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 
 
 
 
 5 */
 6
 7#ifndef __LOG_DOT_H__
 8#define __LOG_DOT_H__
 9
10#include <linux/list.h>
11#include <linux/spinlock.h>
12#include <linux/writeback.h>
13#include "incore.h"
14#include "inode.h"
15
16/**
17 * gfs2_log_lock - acquire the right to mess with the log manager
18 * @sdp: the filesystem
19 *
20 */
21
22static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
23__acquires(&sdp->sd_log_lock)
24{
25	spin_lock(&sdp->sd_log_lock);
26}
27
28/**
29 * gfs2_log_unlock - release the right to mess with the log manager
30 * @sdp: the filesystem
31 *
32 */
33
34static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
35__releases(&sdp->sd_log_lock)
36{
37	spin_unlock(&sdp->sd_log_lock);
38}
39
40static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
41					  unsigned int value)
42{
43	if (++value == sdp->sd_jdesc->jd_blocks) {
44		value = 0;
45	}
46	sdp->sd_log_head = sdp->sd_log_tail = value;
47}
48
49static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
50{
51	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
52
53	if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp))
54		return;
55
56	if (list_empty(&ip->i_ordered)) {
57		spin_lock(&sdp->sd_ordered_lock);
58		if (list_empty(&ip->i_ordered))
59			list_add(&ip->i_ordered, &sdp->sd_log_ordered);
60		spin_unlock(&sdp->sd_ordered_lock);
61	}
62}
63
64extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
65extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct);
 
66
67extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
68extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
69extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
70				  u64 seq, u32 tail, u32 lblock, u32 flags,
71				  int op_flags);
72extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
73			   u32 type);
74extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
 
75extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
76extern void log_flush_wait(struct gfs2_sbd *sdp);
77
 
 
78extern int gfs2_logd(void *data);
79extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
80extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl);
81extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
82
83#endif /* __LOG_DOT_H__ */