2 * JFFS2 -- Journalling Flash File System, Version 2.
4 * Copyright (C) 2001-2003 Red Hat, Inc.
6 * Created by David Woodhouse <dwmw2@infradead.org>
8 * For licensing information, see the file 'LICENCE' in this directory.
10 * $Id: debug.h,v 1.15 2005/09/07 08:34:54 havasi Exp $
13 #ifndef _JFFS2_DEBUG_H_
14 #define _JFFS2_DEBUG_H_
16 #include <linux/config.h>
18 #ifndef CONFIG_JFFS2_FS_DEBUG
19 #define CONFIG_JFFS2_FS_DEBUG 0
22 #if CONFIG_JFFS2_FS_DEBUG == 1
23 /* Enable "paranoia" checks and dumps */
24 #define JFFS2_DBG_PARANOIA_CHECKS
25 #define JFFS2_DBG_DUMPS
26 #define JFFS2_DBG_READINODE_MESSAGES
27 #define JFFS2_DBG_FRAGTREE_MESSAGES
28 #define JFFS2_DBG_DENTLIST_MESSAGES
29 #define JFFS2_DBG_NODEREF_MESSAGES
30 #define JFFS2_DBG_INOCACHE_MESSAGES
31 #define JFFS2_DBG_SUMMARY_MESSAGES
34 #if CONFIG_JFFS2_FS_DEBUG == 2
35 #define JFFS2_DBG_FRAGTREE2_MESSAGES
38 /* Sanity checks are supposed to be light-weight and enabled by default */
39 #define JFFS2_DBG_SANITY_CHECKS
42 * Dx() are mainly used for debugging messages, they must go away and be
43 * superseded by nicer JFFS2_DBG_XXX() macros...
45 #if CONFIG_JFFS2_FS_DEBUG > 0
51 #if CONFIG_JFFS2_FS_DEBUG > 1
57 /* The prefixes of JFFS2 messages */
58 #define JFFS2_DBG_MSG_PREFIX "[JFFS2 DBG]"
59 #define JFFS2_ERR_MSG_PREFIX "JFFS2 error:"
60 #define JFFS2_WARN_MSG_PREFIX "JFFS2 warning:"
61 #define JFFS2_NOTICE_MSG_PREFIX "JFFS2 notice:"
63 #define JFFS2_ERR_LVL KERN_ERR
64 #define JFFS2_WARN_LVL KERN_WARNING
65 #define JFFS2_NOTICE_LVL KERN_NOTICE
66 #define JFFS2_DBG_LVL KERN_DEBUG
68 /* JFFS2 message macros */
69 #define JFFS2_ERROR(fmt, ...) \
71 printk(JFFS2_ERR_LVL JFFS2_ERR_MSG_PREFIX \
72 " (%d) %s: " fmt, current->pid, \
73 __FUNCTION__, ##__VA_ARGS__); \
76 #define JFFS2_WARNING(fmt, ...) \
78 printk(JFFS2_WARN_LVL JFFS2_WARN_MSG_PREFIX \
79 " (%d) %s: " fmt, current->pid, \
80 __FUNCTION__, ##__VA_ARGS__); \
83 #define JFFS2_NOTICE(fmt, ...) \
85 printk(JFFS2_NOTICE_LVL JFFS2_NOTICE_MSG_PREFIX \
86 " (%d) %s: " fmt, current->pid, \
87 __FUNCTION__, ##__VA_ARGS__); \
90 #define JFFS2_DEBUG(fmt, ...) \
92 printk(JFFS2_DBG_LVL JFFS2_DBG_MSG_PREFIX \
93 " (%d) %s: " fmt, current->pid, \
94 __FUNCTION__, ##__VA_ARGS__); \
98 * We split our debugging messages on several parts, depending on the JFFS2
99 * subsystem the message belongs to.
101 /* Read inode debugging messages */
102 #ifdef JFFS2_DBG_READINODE_MESSAGES
103 #define JFFS2_DBG_READINODE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
105 #define JFFS2_DBG_READINODE(fmt, ...)
108 /* Fragtree build debugging messages */
109 #ifdef JFFS2_DBG_FRAGTREE_MESSAGES
110 #define JFFS2_DBG_FRAGTREE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
112 #define JFFS2_DBG_FRAGTREE(fmt, ...)
114 #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
115 #define JFFS2_DBG_FRAGTREE2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
117 #define JFFS2_DBG_FRAGTREE2(fmt, ...)
120 /* Directory entry list manilulation debugging messages */
121 #ifdef JFFS2_DBG_DENTLIST_MESSAGES
122 #define JFFS2_DBG_DENTLIST(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
124 #define JFFS2_DBG_DENTLIST(fmt, ...)
127 /* Print the messages about manipulating node_refs */
128 #ifdef JFFS2_DBG_NODEREF_MESSAGES
129 #define JFFS2_DBG_NODEREF(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
131 #define JFFS2_DBG_NODEREF(fmt, ...)
134 /* Manipulations with the list of inodes (JFFS2 inocache) */
135 #ifdef JFFS2_DBG_INOCACHE_MESSAGES
136 #define JFFS2_DBG_INOCACHE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
138 #define JFFS2_DBG_INOCACHE(fmt, ...)
141 /* Summary debugging messages */
142 #ifdef JFFS2_DBG_SUMMARY_MESSAGES
143 #define JFFS2_DBG_SUMMARY(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
145 #define JFFS2_DBG_SUMMARY(fmt, ...)
148 /* Watch the object allocations */
149 #ifdef JFFS2_DBG_MEMALLOC_MESSAGES
150 #define JFFS2_DBG_MEMALLOC(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
152 #define JFFS2_DBG_MEMALLOC(fmt, ...)
156 /* "Sanity" checks */
158 __jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
159 struct jffs2_eraseblock *jeb);
161 __jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
162 struct jffs2_eraseblock *jeb);
164 /* "Paranoia" checks */
166 __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f);
168 __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f);
170 __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
171 struct jffs2_eraseblock *jeb);
173 __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
174 struct jffs2_eraseblock *jeb);
176 __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
177 uint32_t ofs, int len);
179 /* "Dump" functions */
181 __jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
183 __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb);
185 __jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c);
187 __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c);
189 __jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
190 struct jffs2_eraseblock *jeb);
192 __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
193 struct jffs2_eraseblock *jeb);
195 __jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f);
197 __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f);
199 __jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs);
201 __jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs);
203 #ifdef JFFS2_DBG_PARANOIA_CHECKS
204 #define jffs2_dbg_fragtree_paranoia_check(f) \
205 __jffs2_dbg_fragtree_paranoia_check(f)
206 #define jffs2_dbg_fragtree_paranoia_check_nolock(f) \
207 __jffs2_dbg_fragtree_paranoia_check_nolock(f)
208 #define jffs2_dbg_acct_paranoia_check(c, jeb) \
209 __jffs2_dbg_acct_paranoia_check(c,jeb)
210 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \
211 __jffs2_dbg_acct_paranoia_check_nolock(c,jeb)
212 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \
213 __jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
215 #define jffs2_dbg_fragtree_paranoia_check(f)
216 #define jffs2_dbg_fragtree_paranoia_check_nolock(f)
217 #define jffs2_dbg_acct_paranoia_check(c, jeb)
218 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)
219 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
220 #endif /* !JFFS2_PARANOIA_CHECKS */
222 #ifdef JFFS2_DBG_DUMPS
223 #define jffs2_dbg_dump_jeb(c, jeb) \
224 __jffs2_dbg_dump_jeb(c, jeb);
225 #define jffs2_dbg_dump_jeb_nolock(jeb) \
226 __jffs2_dbg_dump_jeb_nolock(jeb);
227 #define jffs2_dbg_dump_block_lists(c) \
228 __jffs2_dbg_dump_block_lists(c)
229 #define jffs2_dbg_dump_block_lists_nolock(c) \
230 __jffs2_dbg_dump_block_lists_nolock(c)
231 #define jffs2_dbg_dump_fragtree(f) \
232 __jffs2_dbg_dump_fragtree(f);
233 #define jffs2_dbg_dump_fragtree_nolock(f) \
234 __jffs2_dbg_dump_fragtree_nolock(f);
235 #define jffs2_dbg_dump_buffer(buf, len, offs) \
236 __jffs2_dbg_dump_buffer(*buf, len, offs);
237 #define jffs2_dbg_dump_node(c, ofs) \
238 __jffs2_dbg_dump_node(c, ofs);
240 #define jffs2_dbg_dump_jeb(c, jeb)
241 #define jffs2_dbg_dump_jeb_nolock(jeb)
242 #define jffs2_dbg_dump_block_lists(c)
243 #define jffs2_dbg_dump_block_lists_nolock(c)
244 #define jffs2_dbg_dump_fragtree(f)
245 #define jffs2_dbg_dump_fragtree_nolock(f)
246 #define jffs2_dbg_dump_buffer(buf, len, offs)
247 #define jffs2_dbg_dump_node(c, ofs)
248 #endif /* !JFFS2_DBG_DUMPS */
250 #ifdef JFFS2_DBG_SANITY_CHECKS
251 #define jffs2_dbg_acct_sanity_check(c, jeb) \
252 __jffs2_dbg_acct_sanity_check(c, jeb)
253 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) \
254 __jffs2_dbg_acct_sanity_check_nolock(c, jeb)
256 #define jffs2_dbg_acct_sanity_check(c, jeb)
257 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb)
258 #endif /* !JFFS2_DBG_SANITY_CHECKS */
260 #endif /* _JFFS2_DEBUG_H_ */