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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 <[email protected]> |
730554d9 AB |
6 | * |
7 | * Created by David Woodhouse <[email protected]> | |
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 | ||
8fdaaf4c | 16 | #include <linux/printk.h> |
e499e01d | 17 | #include <linux/sched.h> |
730554d9 AB |
18 | |
19 | #ifndef CONFIG_JFFS2_FS_DEBUG | |
f538c96b | 20 | #define CONFIG_JFFS2_FS_DEBUG 0 |
730554d9 AB |
21 | #endif |
22 | ||
008531f4 | 23 | #if CONFIG_JFFS2_FS_DEBUG > 0 |
e0c8e42f | 24 | /* Enable "paranoia" checks and dumps */ |
730554d9 | 25 | #define JFFS2_DBG_PARANOIA_CHECKS |
e0c8e42f | 26 | #define JFFS2_DBG_DUMPS |
733802d9 | 27 | |
182ec4ee | 28 | /* |
733802d9 AB |
29 | * By defining/undefining the below macros one may select debugging messages |
30 | * fro specific JFFS2 subsystems. | |
31 | */ | |
e0c8e42f AB |
32 | #define JFFS2_DBG_READINODE_MESSAGES |
33 | #define JFFS2_DBG_FRAGTREE_MESSAGES | |
34 | #define JFFS2_DBG_DENTLIST_MESSAGES | |
35 | #define JFFS2_DBG_NODEREF_MESSAGES | |
36 | #define JFFS2_DBG_INOCACHE_MESSAGES | |
e631ddba | 37 | #define JFFS2_DBG_SUMMARY_MESSAGES |
733802d9 | 38 | #define JFFS2_DBG_FSBUILD_MESSAGES |
e0c8e42f AB |
39 | #endif |
40 | ||
008531f4 | 41 | #if CONFIG_JFFS2_FS_DEBUG > 1 |
e0c8e42f | 42 | #define JFFS2_DBG_FRAGTREE2_MESSAGES |
2c61cb25 | 43 | #define JFFS2_DBG_READINODE2_MESSAGES |
733802d9 | 44 | #define JFFS2_DBG_MEMALLOC_MESSAGES |
e0c8e42f AB |
45 | #endif |
46 | ||
45ca1b50 | 47 | /* Sanity checks are supposed to be light-weight and enabled by default */ |
e0c8e42f AB |
48 | #define JFFS2_DBG_SANITY_CHECKS |
49 | ||
182ec4ee | 50 | /* |
e0c8e42f | 51 | * Dx() are mainly used for debugging messages, they must go away and be |
733802d9 | 52 | * superseded by nicer dbg_xxx() macros... |
e0c8e42f AB |
53 | */ |
54 | #if CONFIG_JFFS2_FS_DEBUG > 0 | |
9c261b33 | 55 | #define DEBUG |
730554d9 AB |
56 | #define D1(x) x |
57 | #else | |
58 | #define D1(x) | |
59 | #endif | |
60 | ||
61 | #if CONFIG_JFFS2_FS_DEBUG > 1 | |
62 | #define D2(x) x | |
63 | #else | |
64 | #define D2(x) | |
65 | #endif | |
66 | ||
9c261b33 JP |
67 | #define jffs2_dbg(level, fmt, ...) \ |
68 | do { \ | |
69 | if (CONFIG_JFFS2_FS_DEBUG >= level) \ | |
70 | pr_debug(fmt, ##__VA_ARGS__); \ | |
71 | } while (0) | |
72 | ||
e0c8e42f | 73 | /* The prefixes of JFFS2 messages */ |
9bbf29e4 | 74 | #define JFFS2_DBG KERN_DEBUG |
81e39cf0 | 75 | #define JFFS2_DBG_PREFIX "[JFFS2 DBG]" |
81e39cf0 | 76 | #define JFFS2_DBG_MSG_PREFIX JFFS2_DBG JFFS2_DBG_PREFIX |
730554d9 | 77 | |
e0c8e42f | 78 | /* JFFS2 message macros */ |
9bbf29e4 JP |
79 | #define JFFS2_ERROR(fmt, ...) \ |
80 | pr_err("error: (%d) %s: " fmt, \ | |
81 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
730554d9 | 82 | |
e0c8e42f | 83 | #define JFFS2_WARNING(fmt, ...) \ |
9bbf29e4 JP |
84 | pr_warn("warning: (%d) %s: " fmt, \ |
85 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
182ec4ee | 86 | |
e0c8e42f | 87 | #define JFFS2_NOTICE(fmt, ...) \ |
9bbf29e4 JP |
88 | pr_notice("notice: (%d) %s: " fmt, \ |
89 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
730554d9 | 90 | |
e0c8e42f | 91 | #define JFFS2_DEBUG(fmt, ...) \ |
9bbf29e4 JP |
92 | printk(KERN_DEBUG "[JFFS2 DBG] (%d) %s: " fmt, \ |
93 | task_pid_nr(current), __func__, ##__VA_ARGS__) | |
e0c8e42f | 94 | |
182ec4ee | 95 | /* |
e0c8e42f AB |
96 | * We split our debugging messages on several parts, depending on the JFFS2 |
97 | * subsystem the message belongs to. | |
98 | */ | |
99 | /* Read inode debugging messages */ | |
100 | #ifdef JFFS2_DBG_READINODE_MESSAGES | |
733802d9 | 101 | #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 102 | #else |
8fdaaf4c | 103 | #define dbg_readinode(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
730554d9 | 104 | #endif |
2c61cb25 DW |
105 | #ifdef JFFS2_DBG_READINODE2_MESSAGES |
106 | #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
107 | #else | |
8fdaaf4c | 108 | #define dbg_readinode2(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
2c61cb25 | 109 | #endif |
730554d9 | 110 | |
e0c8e42f AB |
111 | /* Fragtree build debugging messages */ |
112 | #ifdef JFFS2_DBG_FRAGTREE_MESSAGES | |
733802d9 | 113 | #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 114 | #else |
8fdaaf4c | 115 | #define dbg_fragtree(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e0c8e42f | 116 | #endif |
e0e3006f | 117 | #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES |
733802d9 | 118 | #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0e3006f | 119 | #else |
8fdaaf4c | 120 | #define dbg_fragtree2(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e0e3006f | 121 | #endif |
e0c8e42f AB |
122 | |
123 | /* Directory entry list manilulation debugging messages */ | |
124 | #ifdef JFFS2_DBG_DENTLIST_MESSAGES | |
733802d9 | 125 | #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 126 | #else |
8fdaaf4c | 127 | #define dbg_dentlist(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e0c8e42f | 128 | #endif |
e0c8e42f | 129 | |
f538c96b | 130 | /* Print the messages about manipulating node_refs */ |
e0c8e42f | 131 | #ifdef JFFS2_DBG_NODEREF_MESSAGES |
733802d9 | 132 | #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 133 | #else |
8fdaaf4c | 134 | #define dbg_noderef(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e0c8e42f | 135 | #endif |
730554d9 | 136 | |
f538c96b | 137 | /* Manipulations with the list of inodes (JFFS2 inocache) */ |
e0c8e42f | 138 | #ifdef JFFS2_DBG_INOCACHE_MESSAGES |
733802d9 | 139 | #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
e0c8e42f | 140 | #else |
8fdaaf4c | 141 | #define dbg_inocache(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e0c8e42f AB |
142 | #endif |
143 | ||
e631ddba FH |
144 | /* Summary debugging messages */ |
145 | #ifdef JFFS2_DBG_SUMMARY_MESSAGES | |
733802d9 AB |
146 | #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
147 | #else | |
8fdaaf4c | 148 | #define dbg_summary(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
733802d9 AB |
149 | #endif |
150 | ||
151 | /* File system build messages */ | |
152 | #ifdef JFFS2_DBG_FSBUILD_MESSAGES | |
153 | #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
e631ddba | 154 | #else |
8fdaaf4c | 155 | #define dbg_fsbuild(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
e631ddba FH |
156 | #endif |
157 | ||
f538c96b AB |
158 | /* Watch the object allocations */ |
159 | #ifdef JFFS2_DBG_MEMALLOC_MESSAGES | |
733802d9 | 160 | #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
f538c96b | 161 | #else |
8fdaaf4c | 162 | #define dbg_memalloc(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
f538c96b AB |
163 | #endif |
164 | ||
aa98d7cf KK |
165 | /* Watch the XATTR subsystem */ |
166 | #ifdef JFFS2_DBG_XATTR_MESSAGES | |
167 | #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) | |
168 | #else | |
8fdaaf4c | 169 | #define dbg_xattr(fmt, ...) no_printk(fmt, ##__VA_ARGS__) |
aa98d7cf | 170 | #endif |
f538c96b | 171 | |
45ca1b50 AB |
172 | /* "Sanity" checks */ |
173 | void | |
174 | __jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c, | |
175 | struct jffs2_eraseblock *jeb); | |
176 | void | |
177 | __jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c, | |
178 | struct jffs2_eraseblock *jeb); | |
179 | ||
e0c8e42f AB |
180 | /* "Paranoia" checks */ |
181 | void | |
182 | __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f); | |
730554d9 | 183 | void |
e0c8e42f AB |
184 | __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f); |
185 | void | |
186 | __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c, | |
187 | struct jffs2_eraseblock *jeb); | |
188 | void | |
189 | __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c, | |
190 | struct jffs2_eraseblock *jeb); | |
191 | void | |
192 | __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c, | |
193 | uint32_t ofs, int len); | |
730554d9 | 194 | |
e0c8e42f AB |
195 | /* "Dump" functions */ |
196 | void | |
197 | __jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | |
198 | void | |
199 | __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb); | |
200 | void | |
201 | __jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c); | |
202 | void | |
203 | __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c); | |
204 | void | |
205 | __jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c, | |
206 | struct jffs2_eraseblock *jeb); | |
207 | void | |
208 | __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c, | |
209 | struct jffs2_eraseblock *jeb); | |
210 | void | |
211 | __jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f); | |
212 | void | |
213 | __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f); | |
730554d9 | 214 | void |
e0c8e42f AB |
215 | __jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs); |
216 | void | |
217 | __jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs); | |
218 | ||
219 | #ifdef JFFS2_DBG_PARANOIA_CHECKS | |
220 | #define jffs2_dbg_fragtree_paranoia_check(f) \ | |
221 | __jffs2_dbg_fragtree_paranoia_check(f) | |
222 | #define jffs2_dbg_fragtree_paranoia_check_nolock(f) \ | |
223 | __jffs2_dbg_fragtree_paranoia_check_nolock(f) | |
224 | #define jffs2_dbg_acct_paranoia_check(c, jeb) \ | |
225 | __jffs2_dbg_acct_paranoia_check(c,jeb) | |
226 | #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \ | |
227 | __jffs2_dbg_acct_paranoia_check_nolock(c,jeb) | |
228 | #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \ | |
229 | __jffs2_dbg_prewrite_paranoia_check(c, ofs, len) | |
730554d9 AB |
230 | #else |
231 | #define jffs2_dbg_fragtree_paranoia_check(f) | |
e0c8e42f | 232 | #define jffs2_dbg_fragtree_paranoia_check_nolock(f) |
730554d9 | 233 | #define jffs2_dbg_acct_paranoia_check(c, jeb) |
e0c8e42f | 234 | #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) |
730554d9 AB |
235 | #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) |
236 | #endif /* !JFFS2_PARANOIA_CHECKS */ | |
237 | ||
e0c8e42f AB |
238 | #ifdef JFFS2_DBG_DUMPS |
239 | #define jffs2_dbg_dump_jeb(c, jeb) \ | |
240 | __jffs2_dbg_dump_jeb(c, jeb); | |
241 | #define jffs2_dbg_dump_jeb_nolock(jeb) \ | |
242 | __jffs2_dbg_dump_jeb_nolock(jeb); | |
243 | #define jffs2_dbg_dump_block_lists(c) \ | |
244 | __jffs2_dbg_dump_block_lists(c) | |
245 | #define jffs2_dbg_dump_block_lists_nolock(c) \ | |
246 | __jffs2_dbg_dump_block_lists_nolock(c) | |
247 | #define jffs2_dbg_dump_fragtree(f) \ | |
248 | __jffs2_dbg_dump_fragtree(f); | |
249 | #define jffs2_dbg_dump_fragtree_nolock(f) \ | |
250 | __jffs2_dbg_dump_fragtree_nolock(f); | |
251 | #define jffs2_dbg_dump_buffer(buf, len, offs) \ | |
252 | __jffs2_dbg_dump_buffer(*buf, len, offs); | |
253 | #define jffs2_dbg_dump_node(c, ofs) \ | |
254 | __jffs2_dbg_dump_node(c, ofs); | |
255 | #else | |
256 | #define jffs2_dbg_dump_jeb(c, jeb) | |
257 | #define jffs2_dbg_dump_jeb_nolock(jeb) | |
258 | #define jffs2_dbg_dump_block_lists(c) | |
259 | #define jffs2_dbg_dump_block_lists_nolock(c) | |
260 | #define jffs2_dbg_dump_fragtree(f) | |
261 | #define jffs2_dbg_dump_fragtree_nolock(f) | |
262 | #define jffs2_dbg_dump_buffer(buf, len, offs) | |
263 | #define jffs2_dbg_dump_node(c, ofs) | |
264 | #endif /* !JFFS2_DBG_DUMPS */ | |
265 | ||
730554d9 | 266 | #ifdef JFFS2_DBG_SANITY_CHECKS |
45ca1b50 AB |
267 | #define jffs2_dbg_acct_sanity_check(c, jeb) \ |
268 | __jffs2_dbg_acct_sanity_check(c, jeb) | |
269 | #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) \ | |
270 | __jffs2_dbg_acct_sanity_check_nolock(c, jeb) | |
e0c8e42f AB |
271 | #else |
272 | #define jffs2_dbg_acct_sanity_check(c, jeb) | |
273 | #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) | |
730554d9 AB |
274 | #endif /* !JFFS2_DBG_SANITY_CHECKS */ |
275 | ||
276 | #endif /* _JFFS2_DEBUG_H_ */ |