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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
Joe Perchesd77d1b52014-03-06 12:10:45 -080013#ifdef pr_fmt
14#undef pr_fmt
15#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16#endif
17
Steven Whitehouse75ca61c2012-03-08 12:10:23 +000018#include <linux/mempool.h>
19
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040020#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000021
Joe Perches8382e262014-03-06 12:10:46 -080022#define fs_emerg(fs, fmt, ...) \
23 pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
Joe Perchesd77d1b52014-03-06 12:10:45 -080024#define fs_warn(fs, fmt, ...) \
25 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
26#define fs_err(fs, fmt, ...) \
27 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
28#define fs_info(fs, fmt, ...) \
29 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000030
31void gfs2_assert_i(struct gfs2_sbd *sdp);
32
33#define gfs2_assert(sdp, assertion) \
34do { \
35 if (unlikely(!(assertion))) { \
36 gfs2_assert_i(sdp); \
Steven Whitehouse1e09ae52006-04-21 15:52:46 -040037 BUG(); \
David Teiglandb3b94fa2006-01-16 16:50:04 +000038 } \
39} while (0)
40
41
42int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
43 const char *function, char *file, unsigned int line);
44
45#define gfs2_assert_withdraw(sdp, assertion) \
46((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070047 __func__, __FILE__, __LINE__))
David Teiglandb3b94fa2006-01-16 16:50:04 +000048
49
50int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
51 const char *function, char *file, unsigned int line);
52
53#define gfs2_assert_warn(sdp, assertion) \
54((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070055 __func__, __FILE__, __LINE__))
David Teiglandb3b94fa2006-01-16 16:50:04 +000056
57
58int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
59 const char *function, char *file, unsigned int line);
60
61#define gfs2_consist(sdp) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070062gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000063
64
65int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
66 const char *function, char *file, unsigned int line);
67
68#define gfs2_consist_inode(ip) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070069gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000070
71
72int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
73 const char *function, char *file, unsigned int line);
74
75#define gfs2_consist_rgrpd(rgd) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -070076gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +000077
78
79int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
80 const char *type, const char *function,
81 char *file, unsigned int line);
82
Steven Whitehouse1b8ba312012-05-29 10:47:51 +010083static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
84 struct buffer_head *bh)
David Teiglandb3b94fa2006-01-16 16:50:04 +000085{
86 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Al Virob44b84d2006-10-14 10:46:30 -040087 u32 magic = be32_to_cpu(mh->mh_magic);
Steven Whitehouse1b8ba312012-05-29 10:47:51 +010088 if (unlikely(magic != GFS2_MAGIC)) {
Joe Perchesd77d1b52014-03-06 12:10:45 -080089 pr_err("Magic number missing at %llu\n",
Steven Whitehouse1b8ba312012-05-29 10:47:51 +010090 (unsigned long long)bh->b_blocknr);
91 return -EIO;
92 }
David Teiglandb3b94fa2006-01-16 16:50:04 +000093 return 0;
94}
95
David Teiglandb3b94fa2006-01-16 16:50:04 +000096int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -040097 u16 type, u16 t,
David Teiglandb3b94fa2006-01-16 16:50:04 +000098 const char *function,
99 char *file, unsigned int line);
100
101static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
102 struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -0400103 u16 type,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000104 const char *function,
105 char *file, unsigned int line)
106{
107 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Al Virob44b84d2006-10-14 10:46:30 -0400108 u32 magic = be32_to_cpu(mh->mh_magic);
Steven Whitehousecd915492006-09-04 12:49:07 -0400109 u16 t = be32_to_cpu(mh->mh_type);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000110 if (unlikely(magic != GFS2_MAGIC))
111 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
112 file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000113 if (unlikely(t != type))
114 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
115 file, line);
116 return 0;
117}
118
119#define gfs2_metatype_check(sdp, bh, type) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700120gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000121
Steven Whitehousecd915492006-09-04 12:49:07 -0400122static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
123 u16 format)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000124{
125 struct gfs2_meta_header *mh;
126 mh = (struct gfs2_meta_header *)bh->b_data;
Steven Whitehousee3167de2006-03-30 15:46:23 -0500127 mh->mh_type = cpu_to_be32(type);
128 mh->mh_format = cpu_to_be32(format);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000129}
130
131
132int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
133 char *file, unsigned int line);
134
135#define gfs2_io_error(sdp) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700136gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000137
138
139int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
140 const char *function, char *file, unsigned int line);
141
142#define gfs2_io_error_bh(sdp, bh) \
Harvey Harrison8e24eea2008-04-30 00:55:09 -0700143gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000144
145
Christoph Lametere18b8902006-12-06 20:33:20 -0800146extern struct kmem_cache *gfs2_glock_cachep;
Steven Whitehouse009d8512009-12-08 12:12:13 +0000147extern struct kmem_cache *gfs2_glock_aspace_cachep;
Christoph Lametere18b8902006-12-06 20:33:20 -0800148extern struct kmem_cache *gfs2_inode_cachep;
149extern struct kmem_cache *gfs2_bufdata_cachep;
Bob Peterson6bdd9be2008-01-28 17:20:26 -0600150extern struct kmem_cache *gfs2_rgrpd_cachep;
Steven Whitehouse37b2c832008-11-17 14:25:37 +0000151extern struct kmem_cache *gfs2_quotad_cachep;
Bob Peterson36f55802012-04-11 12:59:32 -0400152extern struct kmem_cache *gfs2_rsrv_cachep;
Steven Whitehousee8c92ed2012-04-16 09:28:31 +0100153extern mempool_t *gfs2_page_pool;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000154
David Teiglandb3b94fa2006-01-16 16:50:04 +0000155static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
156 unsigned int *p)
157{
158 unsigned int x;
159 spin_lock(&gt->gt_spin);
160 x = *p;
161 spin_unlock(&gt->gt_spin);
162 return x;
163}
164
165#define gfs2_tune_get(sdp, field) \
166gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
167
Joe Perchescb94eb02014-03-06 12:17:21 -0800168__printf(2, 3)
169int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000170
171#endif /* __UTIL_DOT_H__ */