Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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
39int 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((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
44 __func__, __FILE__, __LINE__))
45
46
47int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
48 const char *function, char *file, unsigned int line);
49
50#define gfs2_assert_warn(sdp, assertion) \
51((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
52 __func__, __FILE__, __LINE__))
53
54
55int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
56 const char *function, char *file, unsigned int line);
57
58#define gfs2_consist(sdp) \
59gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
60
61
62int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
63 const char *function, char *file, unsigned int line);
64
65#define gfs2_consist_inode(ip) \
66gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
67
68
69int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
70 const char *function, char *file, unsigned int line);
71
72#define gfs2_consist_rgrpd(rgd) \
73gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
74
75
76int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
77 const char *type, const char *function,
78 char *file, unsigned int line);
79
80static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
81 struct buffer_head *bh)
82{
83 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
84 u32 magic = be32_to_cpu(mh->mh_magic);
85 if (unlikely(magic != GFS2_MAGIC)) {
86 fs_err(sdp, "Magic number missing at %llu\n",
87 (unsigned long long)bh->b_blocknr);
88 return -EIO;
89 }
90 return 0;
91}
92
93int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
94 u16 type, u16 t,
95 const char *function,
96 char *file, unsigned int line);
97
98static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
99 struct buffer_head *bh,
100 u16 type,
101 const char *function,
102 char *file, unsigned int line)
103{
104 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
105 u32 magic = be32_to_cpu(mh->mh_magic);
106 u16 t = be32_to_cpu(mh->mh_type);
107 if (unlikely(magic != GFS2_MAGIC))
108 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
109 file, line);
110 if (unlikely(t != type))
111 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
112 file, line);
113 return 0;
114}
115
116#define gfs2_metatype_check(sdp, bh, type) \
117gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
118
119static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
120 u16 format)
121{
122 struct gfs2_meta_header *mh;
123 mh = (struct gfs2_meta_header *)bh->b_data;
124 mh->mh_type = cpu_to_be32(type);
125 mh->mh_format = cpu_to_be32(format);
126}
127
128
129int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
130 char *file, unsigned int line);
131
132#define gfs2_io_error(sdp) \
133gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
134
135
136void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
137 const char *function, char *file, unsigned int line,
138 bool withdraw);
139
140#define gfs2_io_error_bh_wd(sdp, bh) \
141gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true);
142
143#define gfs2_io_error_bh(sdp, bh) \
144gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false);
145
146
147extern struct kmem_cache *gfs2_glock_cachep;
148extern struct kmem_cache *gfs2_glock_aspace_cachep;
149extern struct kmem_cache *gfs2_inode_cachep;
150extern struct kmem_cache *gfs2_bufdata_cachep;
151extern struct kmem_cache *gfs2_rgrpd_cachep;
152extern struct kmem_cache *gfs2_quotad_cachep;
153extern struct kmem_cache *gfs2_qadata_cachep;
154extern mempool_t *gfs2_page_pool;
155extern struct workqueue_struct *gfs2_control_wq;
156
157static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
158 unsigned int *p)
159{
160 unsigned int x;
161 spin_lock(>->gt_spin);
162 x = *p;
163 spin_unlock(>->gt_spin);
164 return x;
165}
166
167/**
168 * gfs2_withdrawn - test whether the file system is withdrawing or withdrawn
169 * @sdp: the superblock
170 */
171static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp)
172{
173 return test_bit(SDF_WITHDRAWN, &sdp->sd_flags);
174}
175
176#define gfs2_tune_get(sdp, field) \
177gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
178
179__printf(2, 3)
180int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...);
181
182#endif /* __UTIL_DOT_H__ */