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730554d9 AB |
1 | /* |
2 | * JFFS2 -- Journalling Flash File System, Version 2. | |
3 | * | |
c00c310e | 4 | * Copyright © 2001-2007 Red Hat, Inc. |
6088c058 | 5 | * Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org> |
730554d9 AB |
6 | * |
7 | * Created by David Woodhouse <dwmw2@infradead.org> | |
8 | * | |
9 | * For licensing information, see the file 'LICENCE' in this directory. | |
10 | * | |
730554d9 | 11 | */ |
c00c310e | 12 | |
730554d9 AB |
13 | #ifndef _JFFS2_DEBUG_H_ |
14 | #define _JFFS2_DEBUG_H_ | |
15 | ||
e499e01d | 16 | #include <linux/sched.h> |
730554d9 AB |
17 | |
18 | #ifndef CONFIG_JFFS2_FS_DEBUG | |
f538c96b | 19 | #define CONFIG_JFFS2_FS_DEBUG 0 |
730554d9 AB |
20 | #endif |
21 | ||
008531f4 | 22 | #if CONFIG_JFFS2_FS_DEBUG > 0 |
e0c8e42f | 23 | /* Enable "paranoia" checks and dumps */ |
730554d9 | 24 | #define JFFS2_DBG_PARANOIA_CHECKS |
e0c8e42f | 25 | #define JFFS2_DBG_DUMPS |
733802d9 | 26 | |
182ec4ee | 27 | /* |
733802d9 AB |
28 | * By defining/undefining the below macros one may select debugging messages |
29 | * fro specific JFFS2 subsystems. | |
30 | */ | |
e0c8e42f AB |
31 | #define JFFS2_DBG_READINODE_MESSAGES |
32 | #define JFFS2_DBG_FRAGTREE_MESSAGES | |
33 | #define JFFS2_DBG_DENTLIST_MESSAGES | |
34 | #define JFFS2_DBG_NODEREF_MESSAGES | |
35 | #define JFFS2_DBG_INOCACHE_MESSAGES | |
e631ddba | 36 | #define JFFS2_DBG_SUMMARY_MESSAGES |
733802d9 | 37 | #define JFFS2_DBG_FSBUILD_MESSAGES |
e0c8e42f AB |
38 | #endif |
39 | ||
008531f4 | 40 | #if CONFIG_JFFS2_FS_DEBUG > 1 |
e0c8e42f | 41 | #define JFFS2_DBG_FRAGTREE2_MESSAGES |
2c61cb25 | 42 | #define JFFS2_DBG_READINODE2_MESSAGES |
733802d9 | 43 | #define JFFS2_DBG_MEMALLOC_MESSAGES |
e0c8e42f AB |
44 | #endif |
45 | ||
45ca1b50 | 46 | /* Sanity checks are supposed to be light-weight and enabled by default */ |
e0c8e42f AB |
47 | #define JFFS2_DBG_SANITY_CHECKS |
48 | ||
182ec4ee | 49 | /* |
e0c8e42f | 50 | * Dx() are mainly used for debugging messages, they must go away and be |
733802d9 | 51 | * superseded by nicer dbg_xxx() macros... |
e0c8e42f AB |
52 | */ |
53 | #if CONFIG_JFFS2_FS_DEBUG > 0 | |
9c261b33 | 54 | #define DEBUG |
730554d9 AB |
55 | #define D1(x) x |
56 | #else | |
57 | #define D1(x) | |
58 | #endif | |
59 | ||
60 | #if CONFIG_JFFS2_FS_DEBUG > 1 | |
61 | #define D2(x) x | |
62 | #else | |
63 | #define D2(x) | |
64 | #endif | |
65 | ||
9c261b33 JP |
66 | #define jffs2_dbg(level, fmt, ...) \ |
67 | do { \ | |
68 | if (CONFIG_JFFS2_FS_DEBUG >= level) \ | |
69 | pr_debug(fmt, ##__VA_ARGS__); \ | |
70 | } while (0) | |
71 | ||
e0c8e42f | 72 | /* The prefixes of JFFS2 messages */ |
9bbf29e4 | 73 | #define JFFS2_DBG KERN_DEBUG |
81e39cf0 | 74 | #define JFFS2_DBG_PREFIX "[JFFS2 DBG]" |
81e39cf0 | 75 | #define JFFS2_DBG_MSG_PREFIX JFFS2_DBG JFFS2_DBG_PREFIX |
730554d9 | 76 | |
e0c8e42f | 77 | /* JFFS2 message macros */ |
9bbf29e4 JP |
78 | #define JFFS2_ERROR(fmt, ...) \ |
79 | pr_err("error: (%d) %s: " fmt, \ | |
80 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
730554d9 | 81 | |
e0c8e42f | 82 | #define JFFS2_WARNING(fmt, ...) \ |
9bbf29e4 JP |
83 | pr_warn("warning: (%d) %s: " fmt, \ |
84 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
182ec4ee | 85 | |
e0c8e42f | 86 | #define JFFS2_NOTICE(fmt, ...) \ |
9bbf29e4 JP |
87 | pr_notice("notice: (%d) %s: " fmt, \ |
88 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
730554d9 | 89 | |
e0c8e42f | 90 | #define JFFS2_DEBUG(fmt, ...) \ |
9bbf29e4 JP |
91 | printk(KERN_DEBUG "[JFFS2 DBG] (%d) %s: " fmt, \ |
92 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
e0c8e42f | 93 | |
182ec4ee | 94 | /* |
e0c8e42f AB |
95 | * We split our debugging messages on several parts, depending on the JFFS2 |
96 | * subsystem the message belongs to. | |
97 | */ | |
98 | /* Read inode debugging messages */ | |
99 | #ifdef JFFS2_DBG_READINODE_MESSAGES | |
733802d9 | 100 | #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 101 | #else |
733802d9 | 102 | #define dbg_readinode(fmt, ...) |
730554d9 | 103 | #endif |
2c61cb25 DW |
104 | #ifdef JFFS2_DBG_READINODE2_MESSAGES |
105 | #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
106 | #else | |
107 | #define dbg_readinode2(fmt, ...) | |
108 | #endif | |
730554d9 | 109 | |
e0c8e42f AB |
110 | /* Fragtree build debugging messages */ |
111 | #ifdef JFFS2_DBG_FRAGTREE_MESSAGES | |
733802d9 | 112 | #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 113 | #else |
733802d9 | 114 | #define dbg_fragtree(fmt, ...) |
e0c8e42f | 115 | #endif |
e0e3006f | 116 | #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES |
733802d9 | 117 | #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0e3006f | 118 | #else |
733802d9 | 119 | #define dbg_fragtree2(fmt, ...) |
e0e3006f | 120 | #endif |
e0c8e42f AB |
121 | |
122 | /* Directory entry list manilulation debugging messages */ | |
123 | #ifdef JFFS2_DBG_DENTLIST_MESSAGES | |
733802d9 | 124 | #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 125 | #else |
733802d9 | 126 | #define dbg_dentlist(fmt, ...) |
e0c8e42f | 127 | #endif |
e0c8e42f | 128 | |
f538c96b | 129 | /* Print the messages about manipulating node_refs */ |
e0c8e42f | 130 | #ifdef JFFS2_DBG_NODEREF_MESSAGES |
733802d9 | 131 | #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 132 | #else |
733802d9 | 133 | #define dbg_noderef(fmt, ...) |
e0c8e42f | 134 | #endif |
730554d9 | 135 | |
f538c96b | 136 | /* Manipulations with the list of inodes (JFFS2 inocache) */ |
e0c8e42f | 137 | #ifdef JFFS2_DBG_INOCACHE_MESSAGES |
733802d9 | 138 | #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 139 | #else |
733802d9 | 140 | #define dbg_inocache(fmt, ...) |
e0c8e42f AB |
141 | #endif |
142 | ||
e631ddba FH |
143 | /* Summary debugging messages */ |
144 | #ifdef JFFS2_DBG_SUMMARY_MESSAGES | |
733802d9 AB |
145 | #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
146 | #else | |
147 | #define dbg_summary(fmt, ...) | |
148 | #endif | |
149 | ||
150 | /* File system build messages */ | |
151 | #ifdef JFFS2_DBG_FSBUILD_MESSAGES | |
152 | #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
e631ddba | 153 | #else |
733802d9 | 154 | #define dbg_fsbuild(fmt, ...) |
e631ddba FH |
155 | #endif |
156 | ||
f538c96b AB |
157 | /* Watch the object allocations */ |
158 | #ifdef JFFS2_DBG_MEMALLOC_MESSAGES | |
733802d9 | 159 | #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
f538c96b | 160 | #else |
733802d9 | 161 | #define dbg_memalloc(fmt, ...) |
f538c96b AB |
162 | #endif |
163 | ||
aa98d7cf KK |
164 | /* Watch the XATTR subsystem */ |
165 | #ifdef JFFS2_DBG_XATTR_MESSAGES | |
166 | #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
167 | #else | |
168 | #define dbg_xattr(fmt, ...) | |
169 | #endif | |
f538c96b | 170 | |
45ca1b50 AB |
171 | /* "Sanity" checks */ |
172 | void | |
173 | __jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c, | |
174 | struct jffs2_eraseblock *jeb); | |
175 | void | |
176 | __jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c, | |
177 | struct jffs2_eraseblock *jeb); | |
178 | ||
e0c8e42f AB |
179 | /* "Paranoia" checks */ |
180 | void | |
181 | __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f); | |
730554d9 | 182 | void |
e0c8e42f AB |
183 | __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f); |
184 | void | |
185 | __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c, | |
186 | struct jffs2_eraseblock *jeb); | |
187 | void | |
188 | __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c, | |
189 | struct jffs2_eraseblock *jeb); | |
190 | void | |
191 | __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c, | |
192 | uint32_t ofs, int len); | |
730554d9 | 193 | |
e0c8e42f AB |
194 | /* "Dump" functions */ |
195 | void | |
196 | __jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | |
197 | void | |
198 | __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb); | |
199 | void | |
200 | __jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c); | |
201 | void | |
202 | __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c); | |
203 | void | |
204 | __jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c, | |
205 | struct jffs2_eraseblock *jeb); | |
206 | void | |
207 | __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c, | |
208 | struct jffs2_eraseblock *jeb); | |
209 | void | |
210 | __jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f); | |
211 | void | |
212 | __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f); | |
730554d9 | 213 | void |
e0c8e42f AB |
214 | __jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs); |
215 | void | |
216 | __jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs); | |
217 | ||
218 | #ifdef JFFS2_DBG_PARANOIA_CHECKS | |
219 | #define jffs2_dbg_fragtree_paranoia_check(f) \ | |
220 | __jffs2_dbg_fragtree_paranoia_check(f) | |
221 | #define jffs2_dbg_fragtree_paranoia_check_nolock(f) \ | |
222 | __jffs2_dbg_fragtree_paranoia_check_nolock(f) | |
223 | #define jffs2_dbg_acct_paranoia_check(c, jeb) \ | |
224 | __jffs2_dbg_acct_paranoia_check(c,jeb) | |
225 | #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \ | |
226 | __jffs2_dbg_acct_paranoia_check_nolock(c,jeb) | |
227 | #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \ | |
228 | __jffs2_dbg_prewrite_paranoia_check(c, ofs, len) | |
730554d9 AB |
229 | #else |
230 | #define jffs2_dbg_fragtree_paranoia_check(f) | |
e0c8e42f | 231 | #define jffs2_dbg_fragtree_paranoia_check_nolock(f) |
730554d9 | 232 | #define jffs2_dbg_acct_paranoia_check(c, jeb) |
e0c8e42f | 233 | #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) |
730554d9 AB |
234 | #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) |
235 | #endif /* !JFFS2_PARANOIA_CHECKS */ | |
236 | ||
e0c8e42f AB |
237 | #ifdef JFFS2_DBG_DUMPS |
238 | #define jffs2_dbg_dump_jeb(c, jeb) \ | |
239 | __jffs2_dbg_dump_jeb(c, jeb); | |
240 | #define jffs2_dbg_dump_jeb_nolock(jeb) \ | |
241 | __jffs2_dbg_dump_jeb_nolock(jeb); | |
242 | #define jffs2_dbg_dump_block_lists(c) \ | |
243 | __jffs2_dbg_dump_block_lists(c) | |
244 | #define jffs2_dbg_dump_block_lists_nolock(c) \ | |
245 | __jffs2_dbg_dump_block_lists_nolock(c) | |
246 | #define jffs2_dbg_dump_fragtree(f) \ | |
247 | __jffs2_dbg_dump_fragtree(f); | |
248 | #define jffs2_dbg_dump_fragtree_nolock(f) \ | |
249 | __jffs2_dbg_dump_fragtree_nolock(f); | |
250 | #define jffs2_dbg_dump_buffer(buf, len, offs) \ | |
251 | __jffs2_dbg_dump_buffer(*buf, len, offs); | |
252 | #define jffs2_dbg_dump_node(c, ofs) \ | |
253 | __jffs2_dbg_dump_node(c, ofs); | |
254 | #else | |
255 | #define jffs2_dbg_dump_jeb(c, jeb) | |
256 | #define jffs2_dbg_dump_jeb_nolock(jeb) | |
257 | #define jffs2_dbg_dump_block_lists(c) | |
258 | #define jffs2_dbg_dump_block_lists_nolock(c) | |
259 | #define jffs2_dbg_dump_fragtree(f) | |
260 | #define jffs2_dbg_dump_fragtree_nolock(f) | |
261 | #define jffs2_dbg_dump_buffer(buf, len, offs) | |
262 | #define jffs2_dbg_dump_node(c, ofs) | |
263 | #endif /* !JFFS2_DBG_DUMPS */ | |
264 | ||
730554d9 | 265 | #ifdef JFFS2_DBG_SANITY_CHECKS |
45ca1b50 AB |
266 | #define jffs2_dbg_acct_sanity_check(c, jeb) \ |
267 | __jffs2_dbg_acct_sanity_check(c, jeb) | |
268 | #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) \ | |
269 | __jffs2_dbg_acct_sanity_check_nolock(c, jeb) | |
e0c8e42f AB |
270 | #else |
271 | #define jffs2_dbg_acct_sanity_check(c, jeb) | |
272 | #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) | |
730554d9 AB |
273 | #endif /* !JFFS2_DBG_SANITY_CHECKS */ |
274 | ||
275 | #endif /* _JFFS2_DEBUG_H_ */ |