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 __SUPER_DOT_H__
8#define __SUPER_DOT_H__
9
10#include <linux/fs.h>
11#include <linux/dcache.h>
12#include "incore.h"
13
14/* Supported fs format version range */
15#define GFS2_FS_FORMAT_MIN (1801)
16#define GFS2_FS_FORMAT_MAX (1802)
17
18void gfs2_lm_unmount(struct gfs2_sbd *sdp);
19
20static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
21{
22	unsigned int x;
23	spin_lock(&sdp->sd_jindex_spin);
24	x = sdp->sd_journals;
25	spin_unlock(&sdp->sd_jindex_spin);
26	return x;
27}
28
29void gfs2_jindex_free(struct gfs2_sbd *sdp);
30
31struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
32int gfs2_jdesc_check(struct gfs2_jdesc *jd);
33int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
34			      struct gfs2_inode **ipp);
35
36int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
37void gfs2_make_fs_ro(struct gfs2_sbd *sdp);
38void gfs2_online_uevent(struct gfs2_sbd *sdp);
39void gfs2_destroy_threads(struct gfs2_sbd *sdp);
40int gfs2_statfs_init(struct gfs2_sbd *sdp);
41void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
42		        s64 dinodes);
43void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
44			   const void *buf);
45void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc,
46			    void *buf);
47void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh);
48int gfs2_statfs_sync(struct super_block *sb, int type);
49void gfs2_freeze_func(struct work_struct *work);
50void gfs2_thaw_freeze_initiator(struct super_block *sb);
51
52void free_local_statfs_inodes(struct gfs2_sbd *sdp);
53struct inode *find_local_statfs_inode(struct gfs2_sbd *sdp,
54				      unsigned int index);
55void free_sbd(struct gfs2_sbd *sdp);
56
57extern struct file_system_type gfs2_fs_type;
58extern struct file_system_type gfs2meta_fs_type;
59extern const struct export_operations gfs2_export_ops;
60extern const struct super_operations gfs2_super_ops;
61extern const struct dentry_operations gfs2_dops;
62
63extern const struct xattr_handler * const gfs2_xattr_handlers_max[];
64extern const struct xattr_handler * const *gfs2_xattr_handlers_min;
65
66#endif /* __SUPER_DOT_H__ */
67
68