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 1.21 2005/11/07 11:14:39 gleixner 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 > 0
23 /* Enable "paranoia" checks and dumps */
24 #define JFFS2_DBG_PARANOIA_CHECKS
25 #define JFFS2_DBG_DUMPS
28 * By defining/undefining the below macros one may select debugging messages
29 * fro specific JFFS2 subsystems.
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
36 #define JFFS2_DBG_SUMMARY_MESSAGES
37 #define JFFS2_DBG_FSBUILD_MESSAGES
40 #if CONFIG_JFFS2_FS_DEBUG > 1
41 #define JFFS2_DBG_FRAGTREE2_MESSAGES
42 #define JFFS2_DBG_MEMALLOC_MESSAGES
45 /* Sanity checks are supposed to be light-weight and enabled by default */
46 #define JFFS2_DBG_SANITY_CHECKS
49 * Dx() are mainly used for debugging messages, they must go away and be
50 * superseded by nicer dbg_xxx() macros...
52 #if CONFIG_JFFS2_FS_DEBUG > 0
58 #if CONFIG_JFFS2_FS_DEBUG > 1
64 /* The prefixes of JFFS2 messages */
65 #define JFFS2_DBG_PREFIX "[JFFS2 DBG]"
66 #define JFFS2_ERR_PREFIX "JFFS2 error:"
67 #define JFFS2_WARN_PREFIX "JFFS2 warning:"
68 #define JFFS2_NOTICE_PREFIX "JFFS2 notice:"
70 #define JFFS2_ERR KERN_ERR
71 #define JFFS2_WARN KERN_WARNING
72 #define JFFS2_NOT KERN_NOTICE
73 #define JFFS2_DBG KERN_DEBUG
75 #define JFFS2_DBG_MSG_PREFIX JFFS2_DBG JFFS2_DBG_PREFIX
76 #define JFFS2_ERR_MSG_PREFIX JFFS2_ERR JFFS2_ERR_PREFIX
77 #define JFFS2_WARN_MSG_PREFIX JFFS2_WARN JFFS2_WARN_PREFIX
78 #define JFFS2_NOTICE_MSG_PREFIX JFFS2_NOT JFFS2_NOTICE_PREFIX
80 /* JFFS2 message macros */
81 #define JFFS2_ERROR(fmt, ...) \
83 printk(JFFS2_ERR_MSG_PREFIX \
84 " (%d) %s: " fmt, current->pid, \
85 __FUNCTION__, ##__VA_ARGS__); \
88 #define JFFS2_WARNING(fmt, ...) \
90 printk(JFFS2_WARN_MSG_PREFIX \
91 " (%d) %s: " fmt, current->pid, \
92 __FUNCTION__, ##__VA_ARGS__); \
95 #define JFFS2_NOTICE(fmt, ...) \
97 printk(JFFS2_NOTICE_MSG_PREFIX \
98 " (%d) %s: " fmt, current->pid, \
99 __FUNCTION__, ##__VA_ARGS__); \
102 #define JFFS2_DEBUG(fmt, ...) \
104 printk(JFFS2_DBG_MSG_PREFIX \
105 " (%d) %s: " fmt, current->pid, \
106 __FUNCTION__, ##__VA_ARGS__); \
110 * We split our debugging messages on several parts, depending on the JFFS2
111 * subsystem the message belongs to.
113 /* Read inode debugging messages */
114 #ifdef JFFS2_DBG_READINODE_MESSAGES
115 #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
117 #define dbg_readinode(fmt, ...)
120 /* Fragtree build debugging messages */
121 #ifdef JFFS2_DBG_FRAGTREE_MESSAGES
122 #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
124 #define dbg_fragtree(fmt, ...)
126 #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
127 #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
129 #define dbg_fragtree2(fmt, ...)
132 /* Directory entry list manilulation debugging messages */
133 #ifdef JFFS2_DBG_DENTLIST_MESSAGES
134 #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
136 #define dbg_dentlist(fmt, ...)
139 /* Print the messages about manipulating node_refs */
140 #ifdef JFFS2_DBG_NODEREF_MESSAGES
141 #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
143 #define dbg_noderef(fmt, ...)
146 /* Manipulations with the list of inodes (JFFS2 inocache) */
147 #ifdef JFFS2_DBG_INOCACHE_MESSAGES
148 #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
150 #define dbg_inocache(fmt, ...)
153 /* Summary debugging messages */
154 #ifdef JFFS2_DBG_SUMMARY_MESSAGES
155 #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
157 #define dbg_summary(fmt, ...)
160 /* File system build messages */
161 #ifdef JFFS2_DBG_FSBUILD_MESSAGES
162 #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
164 #define dbg_fsbuild(fmt, ...)
167 /* Watch the object allocations */
168 #ifdef JFFS2_DBG_MEMALLOC_MESSAGES
169 #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
171 #define dbg_memalloc(fmt, ...)
175 /* "Sanity" checks */
177 __jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info
*c
,
178 struct jffs2_eraseblock
*jeb
);
180 __jffs2_dbg_acct_sanity_check(struct jffs2_sb_info
*c
,
181 struct jffs2_eraseblock
*jeb
);
183 /* "Paranoia" checks */
185 __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info
*f
);
187 __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info
*f
);
189 __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info
*c
,
190 struct jffs2_eraseblock
*jeb
);
192 __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info
*c
,
193 struct jffs2_eraseblock
*jeb
);
195 __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info
*c
,
196 uint32_t ofs
, int len
);
198 /* "Dump" functions */
200 __jffs2_dbg_dump_jeb(struct jffs2_sb_info
*c
, struct jffs2_eraseblock
*jeb
);
202 __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock
*jeb
);
204 __jffs2_dbg_dump_block_lists(struct jffs2_sb_info
*c
);
206 __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info
*c
);
208 __jffs2_dbg_dump_node_refs(struct jffs2_sb_info
*c
,
209 struct jffs2_eraseblock
*jeb
);
211 __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info
*c
,
212 struct jffs2_eraseblock
*jeb
);
214 __jffs2_dbg_dump_fragtree(struct jffs2_inode_info
*f
);
216 __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info
*f
);
218 __jffs2_dbg_dump_buffer(unsigned char *buf
, int len
, uint32_t offs
);
220 __jffs2_dbg_dump_node(struct jffs2_sb_info
*c
, uint32_t ofs
);
222 #ifdef JFFS2_DBG_PARANOIA_CHECKS
223 #define jffs2_dbg_fragtree_paranoia_check(f) \
224 __jffs2_dbg_fragtree_paranoia_check(f)
225 #define jffs2_dbg_fragtree_paranoia_check_nolock(f) \
226 __jffs2_dbg_fragtree_paranoia_check_nolock(f)
227 #define jffs2_dbg_acct_paranoia_check(c, jeb) \
228 __jffs2_dbg_acct_paranoia_check(c,jeb)
229 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \
230 __jffs2_dbg_acct_paranoia_check_nolock(c,jeb)
231 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \
232 __jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
234 #define jffs2_dbg_fragtree_paranoia_check(f)
235 #define jffs2_dbg_fragtree_paranoia_check_nolock(f)
236 #define jffs2_dbg_acct_paranoia_check(c, jeb)
237 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)
238 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
239 #endif /* !JFFS2_PARANOIA_CHECKS */
241 #ifdef JFFS2_DBG_DUMPS
242 #define jffs2_dbg_dump_jeb(c, jeb) \
243 __jffs2_dbg_dump_jeb(c, jeb);
244 #define jffs2_dbg_dump_jeb_nolock(jeb) \
245 __jffs2_dbg_dump_jeb_nolock(jeb);
246 #define jffs2_dbg_dump_block_lists(c) \
247 __jffs2_dbg_dump_block_lists(c)
248 #define jffs2_dbg_dump_block_lists_nolock(c) \
249 __jffs2_dbg_dump_block_lists_nolock(c)
250 #define jffs2_dbg_dump_fragtree(f) \
251 __jffs2_dbg_dump_fragtree(f);
252 #define jffs2_dbg_dump_fragtree_nolock(f) \
253 __jffs2_dbg_dump_fragtree_nolock(f);
254 #define jffs2_dbg_dump_buffer(buf, len, offs) \
255 __jffs2_dbg_dump_buffer(*buf, len, offs);
256 #define jffs2_dbg_dump_node(c, ofs) \
257 __jffs2_dbg_dump_node(c, ofs);
259 #define jffs2_dbg_dump_jeb(c, jeb)
260 #define jffs2_dbg_dump_jeb_nolock(jeb)
261 #define jffs2_dbg_dump_block_lists(c)
262 #define jffs2_dbg_dump_block_lists_nolock(c)
263 #define jffs2_dbg_dump_fragtree(f)
264 #define jffs2_dbg_dump_fragtree_nolock(f)
265 #define jffs2_dbg_dump_buffer(buf, len, offs)
266 #define jffs2_dbg_dump_node(c, ofs)
267 #endif /* !JFFS2_DBG_DUMPS */
269 #ifdef JFFS2_DBG_SANITY_CHECKS
270 #define jffs2_dbg_acct_sanity_check(c, jeb) \
271 __jffs2_dbg_acct_sanity_check(c, jeb)
272 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) \
273 __jffs2_dbg_acct_sanity_check_nolock(c, jeb)
275 #define jffs2_dbg_acct_sanity_check(c, jeb)
276 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb)
277 #endif /* !JFFS2_DBG_SANITY_CHECKS */
279 #endif /* _JFFS2_DEBUG_H_ */