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David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#ifndef __UTIL_DOT_H__
11#define __UTIL_DOT_H__
12
Steven Whitehouse75ca61c2012-03-08 12:10:23 +000013#include <linux/mempool.h>
14
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040015#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000016
17#define fs_printk(level, fs, fmt, arg...) \
18 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
19
20#define fs_info(fs, fmt, arg...) \
21 fs_printk(KERN_INFO , fs , fmt , ## arg)
22
23#define fs_warn(fs, fmt, arg...) \
24 fs_printk(KERN_WARNING , fs , fmt , ## arg)
25
26#define fs_err(fs, fmt, arg...) \
27 fs_printk(KERN_ERR, fs , fmt , ## arg)
28
29
30void gfs2_assert_i(struct gfs2_sbd *sdp);
31
32#define gfs2_assert(sdp, assertion) \
33do { \
34 if (unlikely(!(assertion))) { \
35 gfs2_assert_i(sdp); \
Steven Whitehouse1e09ae52006-04-21 15:52:46 -040036 BUG(); \
David Teiglandb3b94fa2006-01-16 16:50:04 +000037 } \
38} while (0)
39
40
41int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
42 const char *function, char *file, unsigned int line);
43
44#define gfs2_assert_withdraw(sdp, assertion) \
45((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070046 __func__, __FILE__, __LINE__))
David Teiglandb3b94fa2006-01-16 16:50:04 +000047
48
49int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
50 const char *function, char *file, unsigned int line);
51
52#define gfs2_assert_warn(sdp, assertion) \
53((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070054 __func__, __FILE__, __LINE__))
David Teiglandb3b94fa2006-01-16 16:50:04 +000055
56
57int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
58 const char *function, char *file, unsigned int line);
59
60#define gfs2_consist(sdp) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070061gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000062
63
64int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
65 const char *function, char *file, unsigned int line);
66
67#define gfs2_consist_inode(ip) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070068gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000069
70
71int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
72 const char *function, char *file, unsigned int line);
73
74#define gfs2_consist_rgrpd(rgd) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070075gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000076
77
78int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
79 const char *type, const char *function,
80 char *file, unsigned int line);
81
Steven Whitehouse1b8ba312012-05-29 10:47:51 +010082static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
83 struct buffer_head *bh)
David Teiglandb3b94fa2006-01-16 16:50:04 +000084{
85 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Al Virob44b84d2006-10-14 10:46:30 -040086 u32 magic = be32_to_cpu(mh->mh_magic);
Steven Whitehouse1b8ba312012-05-29 10:47:51 +010087 if (unlikely(magic != GFS2_MAGIC)) {
88 printk(KERN_ERR "GFS2: Magic number missing at %llu\n",
89 (unsigned long long)bh->b_blocknr);
90 return -EIO;
91 }
David Teiglandb3b94fa2006-01-16 16:50:04 +000092 return 0;
93}
94
David Teiglandb3b94fa2006-01-16 16:50:04 +000095int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -040096 u16 type, u16 t,
David Teiglandb3b94fa2006-01-16 16:50:04 +000097 const char *function,
98 char *file, unsigned int line);
99
100static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
101 struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -0400102 u16 type,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000103 const char *function,
104 char *file, unsigned int line)
105{
106 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Al Virob44b84d2006-10-14 10:46:30 -0400107 u32 magic = be32_to_cpu(mh->mh_magic);
Steven Whitehousecd915492006-09-04 12:49:07 -0400108 u16 t = be32_to_cpu(mh->mh_type);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000109 if (unlikely(magic != GFS2_MAGIC))
110 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
111 file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000112 if (unlikely(t != type))
113 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
114 file, line);
115 return 0;
116}
117
118#define gfs2_metatype_check(sdp, bh, type) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700119gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000120
Steven Whitehousecd915492006-09-04 12:49:07 -0400121static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
122 u16 format)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000123{
124 struct gfs2_meta_header *mh;
125 mh = (struct gfs2_meta_header *)bh->b_data;
Steven Whitehousee3167de2006-03-30 15:46:23 -0500126 mh->mh_type = cpu_to_be32(type);
127 mh->mh_format = cpu_to_be32(format);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000128}
129
130
131int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
132 char *file, unsigned int line);
133
134#define gfs2_io_error(sdp) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700135gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000136
137
138int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
139 const char *function, char *file, unsigned int line);
140
141#define gfs2_io_error_bh(sdp, bh) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700142gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000143
144
Christoph Lametere18b8902006-12-06 20:33:20 -0800145extern struct kmem_cache *gfs2_glock_cachep;
Steven Whitehouse009d8512009-12-08 12:12:13 +0000146extern struct kmem_cache *gfs2_glock_aspace_cachep;
Christoph Lametere18b8902006-12-06 20:33:20 -0800147extern struct kmem_cache *gfs2_inode_cachep;
148extern struct kmem_cache *gfs2_bufdata_cachep;
Bob Peterson6bdd9be2008-01-28 17:20:26 -0600149extern struct kmem_cache *gfs2_rgrpd_cachep;
Steven Whitehouse37b2c832008-11-17 14:25:37 +0000150extern struct kmem_cache *gfs2_quotad_cachep;
Bob Peterson36f55802012-04-11 12:59:32 -0400151extern struct kmem_cache *gfs2_rsrv_cachep;
Steven Whitehousee8c92ed2012-04-16 09:28:31 +0100152extern mempool_t *gfs2_page_pool;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000153
David Teiglandb3b94fa2006-01-16 16:50:04 +0000154static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
155 unsigned int *p)
156{
157 unsigned int x;
158 spin_lock(&gt->gt_spin);
159 x = *p;
160 spin_unlock(&gt->gt_spin);
161 return x;
162}
163
164#define gfs2_tune_get(sdp, field) \
165gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
166
Steven Whitehouseda755fd2008-01-30 15:34:04 +0000167int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000168
169#endif /* __UTIL_DOT_H__ */
170