Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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 __UTIL_DOT_H__
8#define __UTIL_DOT_H__
9
10#ifdef pr_fmt
11#undef pr_fmt
12#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13#endif
14
15#include <linux/mempool.h>
16
17#include "incore.h"
18
19#define fs_emerg(fs, fmt, ...) \
20 pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
21#define fs_warn(fs, fmt, ...) \
22 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
23#define fs_err(fs, fmt, ...) \
24 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
25#define fs_info(fs, fmt, ...) \
26 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
27
28void gfs2_assert_i(struct gfs2_sbd *sdp);
29
30#define gfs2_assert(sdp, assertion) \
31do { \
32 if (unlikely(!(assertion))) { \
33 gfs2_assert_i(sdp); \
34 BUG(); \
35 } \
36} while (0)
37
38
39void gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
40 const char *function, char *file, unsigned int line);
41
42#define gfs2_assert_withdraw(sdp, assertion) \
43 ({ \
44 bool _bool = (assertion); \
45 if (unlikely(!_bool)) \
46 gfs2_assert_withdraw_i((sdp), #assertion, \
47 __func__, __FILE__, __LINE__); \
48 !_bool; \
49 })
50
51void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
52 const char *function, char *file, unsigned int line);
53
54#define gfs2_assert_warn(sdp, assertion) \
55 ({ \
56 bool _bool = (assertion); \
57 if (unlikely(!_bool)) \
58 gfs2_assert_warn_i((sdp), #assertion, \
59 __func__, __FILE__, __LINE__); \
60 !_bool; \
61 })
62
63void gfs2_consist_i(struct gfs2_sbd *sdp,
64 const char *function, char *file, unsigned int line);
65
66#define gfs2_consist(sdp) \
67gfs2_consist_i((sdp), __func__, __FILE__, __LINE__)
68
69
70void gfs2_consist_inode_i(struct gfs2_inode *ip,
71 const char *function, char *file, unsigned int line);
72
73#define gfs2_consist_inode(ip) \
74gfs2_consist_inode_i((ip), __func__, __FILE__, __LINE__)
75
76
77void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
78 const char *function, char *file, unsigned int line);
79
80#define gfs2_consist_rgrpd(rgd) \
81gfs2_consist_rgrpd_i((rgd), __func__, __FILE__, __LINE__)
82
83
84void gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
85 const char *function,
86 char *file, unsigned int line);
87
88static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
89 struct buffer_head *bh)
90{
91 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
92 u32 magic = be32_to_cpu(mh->mh_magic);
93 if (unlikely(magic != GFS2_MAGIC)) {
94 fs_err(sdp, "Magic number missing at %llu\n",
95 (unsigned long long)bh->b_blocknr);
96 return -EIO;
97 }
98 return 0;
99}
100
101void gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
102 u16 type, u16 t,
103 const char *function,
104 char *file, unsigned int line);
105
106static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
107 struct buffer_head *bh,
108 u16 type,
109 const char *function,
110 char *file, unsigned int line)
111{
112 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
113 u32 magic = be32_to_cpu(mh->mh_magic);
114 u16 t = be32_to_cpu(mh->mh_type);
115 if (unlikely(magic != GFS2_MAGIC)) {
116 gfs2_meta_check_ii(sdp, bh, function,
117 file, line);
118 return -EIO;
119 }
120 if (unlikely(t != type)) {
121 gfs2_metatype_check_ii(sdp, bh, type, t, function,
122 file, line);
123 return -EIO;
124 }
125 return 0;
126}
127
128#define gfs2_metatype_check(sdp, bh, type) \
129gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
130
131static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
132 u16 format)
133{
134 struct gfs2_meta_header *mh;
135 mh = (struct gfs2_meta_header *)bh->b_data;
136 mh->mh_type = cpu_to_be32(type);
137 mh->mh_format = cpu_to_be32(format);
138}
139
140
141void gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
142 char *file, unsigned int line);
143
144int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
145 bool verbose);
146int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp);
147void gfs2_freeze_unlock(struct gfs2_sbd *sdp);
148
149#define gfs2_io_error(sdp) \
150gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__)
151
152
153void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
154 const char *function, char *file, unsigned int line);
155
156#define gfs2_io_error_bh(sdp, bh) \
157gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__)
158
159
160extern struct kmem_cache *gfs2_glock_cachep;
161extern struct kmem_cache *gfs2_glock_aspace_cachep;
162extern struct kmem_cache *gfs2_inode_cachep;
163extern struct kmem_cache *gfs2_bufdata_cachep;
164extern struct kmem_cache *gfs2_rgrpd_cachep;
165extern struct kmem_cache *gfs2_quotad_cachep;
166extern struct kmem_cache *gfs2_qadata_cachep;
167extern struct kmem_cache *gfs2_trans_cachep;
168extern mempool_t *gfs2_page_pool;
169extern struct workqueue_struct *gfs2_control_wq;
170
171static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
172 unsigned int *p)
173{
174 unsigned int x;
175 spin_lock(>->gt_spin);
176 x = *p;
177 spin_unlock(>->gt_spin);
178 return x;
179}
180
181/**
182 * gfs2_withdrawn - test whether the file system is withdrawn
183 * @sdp: the superblock
184 */
185static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp)
186{
187 return unlikely(test_bit(SDF_WITHDRAWN, &sdp->sd_flags));
188}
189
190#define gfs2_tune_get(sdp, field) \
191gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
192
193__printf(2, 3)
194void gfs2_lm(struct gfs2_sbd *sdp, const char *fmt, ...);
195
196void gfs2_withdraw_func(struct work_struct *work);
197void gfs2_withdraw(struct gfs2_sbd *sdp);
198
199#endif /* __UTIL_DOT_H__ */