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-rw-r--r--fs/ubifs/debug.h178
1 files changed, 64 insertions, 114 deletions
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index e6493cac193d..a811ac4a26bb 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -31,6 +31,8 @@ typedef int (*dbg_znode_callback)(struct ubifs_info *c,
31 31
32#ifdef CONFIG_UBIFS_FS_DEBUG 32#ifdef CONFIG_UBIFS_FS_DEBUG
33 33
34#include <linux/random.h>
35
34/** 36/**
35 * ubifs_debug_info - per-FS debugging information. 37 * ubifs_debug_info - per-FS debugging information.
36 * @old_zroot: old index root - used by 'dbg_check_old_index()' 38 * @old_zroot: old index root - used by 'dbg_check_old_index()'
@@ -50,13 +52,15 @@ typedef int (*dbg_znode_callback)(struct ubifs_info *c,
50 * @new_ihead_offs: used by debugging to check @c->ihead_offs 52 * @new_ihead_offs: used by debugging to check @c->ihead_offs
51 * 53 *
52 * @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()') 54 * @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()')
53 * @saved_free: saved free space (used by 'dbg_save_space_info()') 55 * @saved_bi: saved budgeting information
56 * @saved_free: saved amount of free space
57 * @saved_idx_gc_cnt: saved value of @c->idx_gc_cnt
54 * 58 *
55 * dfs_dir_name: name of debugfs directory containing this file-system's files 59 * @dfs_dir_name: name of debugfs directory containing this file-system's files
56 * dfs_dir: direntry object of the file-system debugfs directory 60 * @dfs_dir: direntry object of the file-system debugfs directory
57 * dfs_dump_lprops: "dump lprops" debugfs knob 61 * @dfs_dump_lprops: "dump lprops" debugfs knob
58 * dfs_dump_budg: "dump budgeting information" debugfs knob 62 * @dfs_dump_budg: "dump budgeting information" debugfs knob
59 * dfs_dump_tnc: "dump TNC" debugfs knob 63 * @dfs_dump_tnc: "dump TNC" debugfs knob
60 */ 64 */
61struct ubifs_debug_info { 65struct ubifs_debug_info {
62 struct ubifs_zbranch old_zroot; 66 struct ubifs_zbranch old_zroot;
@@ -76,7 +80,9 @@ struct ubifs_debug_info {
76 int new_ihead_offs; 80 int new_ihead_offs;
77 81
78 struct ubifs_lp_stats saved_lst; 82 struct ubifs_lp_stats saved_lst;
83 struct ubifs_budg_info saved_bi;
79 long long saved_free; 84 long long saved_free;
85 int saved_idx_gc_cnt;
80 86
81 char dfs_dir_name[100]; 87 char dfs_dir_name[100];
82 struct dentry *dfs_dir; 88 struct dentry *dfs_dir;
@@ -101,23 +107,7 @@ struct ubifs_debug_info {
101 } \ 107 } \
102} while (0) 108} while (0)
103 109
104#define dbg_dump_stack() do { \ 110#define dbg_dump_stack() dump_stack()
105 if (!dbg_failure_mode) \
106 dump_stack(); \
107} while (0)
108
109/* Generic debugging messages */
110#define dbg_msg(fmt, ...) do { \
111 spin_lock(&dbg_lock); \
112 printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", current->pid, \
113 __func__, ##__VA_ARGS__); \
114 spin_unlock(&dbg_lock); \
115} while (0)
116
117#define dbg_do_msg(typ, fmt, ...) do { \
118 if (ubifs_msg_flags & typ) \
119 dbg_msg(fmt, ##__VA_ARGS__); \
120} while (0)
121 111
122#define dbg_err(fmt, ...) do { \ 112#define dbg_err(fmt, ...) do { \
123 spin_lock(&dbg_lock); \ 113 spin_lock(&dbg_lock); \
@@ -137,77 +127,40 @@ const char *dbg_key_str1(const struct ubifs_info *c,
137#define DBGKEY(key) dbg_key_str0(c, (key)) 127#define DBGKEY(key) dbg_key_str0(c, (key))
138#define DBGKEY1(key) dbg_key_str1(c, (key)) 128#define DBGKEY1(key) dbg_key_str1(c, (key))
139 129
140/* General messages */ 130#define ubifs_dbg_msg(type, fmt, ...) do { \
141#define dbg_gen(fmt, ...) dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__) 131 spin_lock(&dbg_lock); \
132 pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__); \
133 spin_unlock(&dbg_lock); \
134} while (0)
142 135
136/* Just a debugging messages not related to any specific UBIFS subsystem */
137#define dbg_msg(fmt, ...) ubifs_dbg_msg("msg", fmt, ##__VA_ARGS__)
138/* General messages */
139#define dbg_gen(fmt, ...) ubifs_dbg_msg("gen", fmt, ##__VA_ARGS__)
143/* Additional journal messages */ 140/* Additional journal messages */
144#define dbg_jnl(fmt, ...) dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__) 141#define dbg_jnl(fmt, ...) ubifs_dbg_msg("jnl", fmt, ##__VA_ARGS__)
145
146/* Additional TNC messages */ 142/* Additional TNC messages */
147#define dbg_tnc(fmt, ...) dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__) 143#define dbg_tnc(fmt, ...) ubifs_dbg_msg("tnc", fmt, ##__VA_ARGS__)
148
149/* Additional lprops messages */ 144/* Additional lprops messages */
150#define dbg_lp(fmt, ...) dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__) 145#define dbg_lp(fmt, ...) ubifs_dbg_msg("lp", fmt, ##__VA_ARGS__)
151
152/* Additional LEB find messages */ 146/* Additional LEB find messages */
153#define dbg_find(fmt, ...) dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__) 147#define dbg_find(fmt, ...) ubifs_dbg_msg("find", fmt, ##__VA_ARGS__)
154
155/* Additional mount messages */ 148/* Additional mount messages */
156#define dbg_mnt(fmt, ...) dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__) 149#define dbg_mnt(fmt, ...) ubifs_dbg_msg("mnt", fmt, ##__VA_ARGS__)
157
158/* Additional I/O messages */ 150/* Additional I/O messages */
159#define dbg_io(fmt, ...) dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__) 151#define dbg_io(fmt, ...) ubifs_dbg_msg("io", fmt, ##__VA_ARGS__)
160
161/* Additional commit messages */ 152/* Additional commit messages */
162#define dbg_cmt(fmt, ...) dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__) 153#define dbg_cmt(fmt, ...) ubifs_dbg_msg("cmt", fmt, ##__VA_ARGS__)
163
164/* Additional budgeting messages */ 154/* Additional budgeting messages */
165#define dbg_budg(fmt, ...) dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__) 155#define dbg_budg(fmt, ...) ubifs_dbg_msg("budg", fmt, ##__VA_ARGS__)
166
167/* Additional log messages */ 156/* Additional log messages */
168#define dbg_log(fmt, ...) dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__) 157#define dbg_log(fmt, ...) ubifs_dbg_msg("log", fmt, ##__VA_ARGS__)
169
170/* Additional gc messages */ 158/* Additional gc messages */
171#define dbg_gc(fmt, ...) dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__) 159#define dbg_gc(fmt, ...) ubifs_dbg_msg("gc", fmt, ##__VA_ARGS__)
172
173/* Additional scan messages */ 160/* Additional scan messages */
174#define dbg_scan(fmt, ...) dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__) 161#define dbg_scan(fmt, ...) ubifs_dbg_msg("scan", fmt, ##__VA_ARGS__)
175
176/* Additional recovery messages */ 162/* Additional recovery messages */
177#define dbg_rcvry(fmt, ...) dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__) 163#define dbg_rcvry(fmt, ...) ubifs_dbg_msg("rcvry", fmt, ##__VA_ARGS__)
178
179/*
180 * Debugging message type flags.
181 *
182 * UBIFS_MSG_GEN: general messages
183 * UBIFS_MSG_JNL: journal messages
184 * UBIFS_MSG_MNT: mount messages
185 * UBIFS_MSG_CMT: commit messages
186 * UBIFS_MSG_FIND: LEB find messages
187 * UBIFS_MSG_BUDG: budgeting messages
188 * UBIFS_MSG_GC: garbage collection messages
189 * UBIFS_MSG_TNC: TNC messages
190 * UBIFS_MSG_LP: lprops messages
191 * UBIFS_MSG_IO: I/O messages
192 * UBIFS_MSG_LOG: log messages
193 * UBIFS_MSG_SCAN: scan messages
194 * UBIFS_MSG_RCVRY: recovery messages
195 */
196enum {
197 UBIFS_MSG_GEN = 0x1,
198 UBIFS_MSG_JNL = 0x2,
199 UBIFS_MSG_MNT = 0x4,
200 UBIFS_MSG_CMT = 0x8,
201 UBIFS_MSG_FIND = 0x10,
202 UBIFS_MSG_BUDG = 0x20,
203 UBIFS_MSG_GC = 0x40,
204 UBIFS_MSG_TNC = 0x80,
205 UBIFS_MSG_LP = 0x100,
206 UBIFS_MSG_IO = 0x200,
207 UBIFS_MSG_LOG = 0x400,
208 UBIFS_MSG_SCAN = 0x800,
209 UBIFS_MSG_RCVRY = 0x1000,
210};
211 164
212/* 165/*
213 * Debugging check flags. 166 * Debugging check flags.
@@ -233,11 +186,9 @@ enum {
233/* 186/*
234 * Special testing flags. 187 * Special testing flags.
235 * 188 *
236 * UBIFS_TST_FORCE_IN_THE_GAPS: force the use of in-the-gaps method
237 * UBIFS_TST_RCVRY: failure mode for recovery testing 189 * UBIFS_TST_RCVRY: failure mode for recovery testing
238 */ 190 */
239enum { 191enum {
240 UBIFS_TST_FORCE_IN_THE_GAPS = 0x2,
241 UBIFS_TST_RCVRY = 0x4, 192 UBIFS_TST_RCVRY = 0x4,
242}; 193};
243 194
@@ -262,7 +213,7 @@ void dbg_dump_lpt_node(const struct ubifs_info *c, void *node, int lnum,
262 int offs); 213 int offs);
263void dbg_dump_budget_req(const struct ubifs_budget_req *req); 214void dbg_dump_budget_req(const struct ubifs_budget_req *req);
264void dbg_dump_lstats(const struct ubifs_lp_stats *lst); 215void dbg_dump_lstats(const struct ubifs_lp_stats *lst);
265void dbg_dump_budg(struct ubifs_info *c); 216void dbg_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi);
266void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp); 217void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp);
267void dbg_dump_lprops(struct ubifs_info *c); 218void dbg_dump_lprops(struct ubifs_info *c);
268void dbg_dump_lpt_info(struct ubifs_info *c); 219void dbg_dump_lpt_info(struct ubifs_info *c);
@@ -304,18 +255,16 @@ int dbg_check_data_nodes_order(struct ubifs_info *c, struct list_head *head);
304int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head); 255int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head);
305 256
306/* Force the use of in-the-gaps method for testing */ 257/* Force the use of in-the-gaps method for testing */
307 258static inline int dbg_force_in_the_gaps_enabled(void)
308#define dbg_force_in_the_gaps_enabled \ 259{
309 (ubifs_tst_flags & UBIFS_TST_FORCE_IN_THE_GAPS) 260 return ubifs_chk_flags & UBIFS_CHK_GEN;
310 261}
311int dbg_force_in_the_gaps(void); 262int dbg_force_in_the_gaps(void);
312 263
313/* Failure mode for recovery testing */ 264/* Failure mode for recovery testing */
314
315#define dbg_failure_mode (ubifs_tst_flags & UBIFS_TST_RCVRY) 265#define dbg_failure_mode (ubifs_tst_flags & UBIFS_TST_RCVRY)
316 266
317#ifndef UBIFS_DBG_PRESERVE_UBI 267#ifndef UBIFS_DBG_PRESERVE_UBI
318
319#define ubi_leb_read dbg_leb_read 268#define ubi_leb_read dbg_leb_read
320#define ubi_leb_write dbg_leb_write 269#define ubi_leb_write dbg_leb_write
321#define ubi_leb_change dbg_leb_change 270#define ubi_leb_change dbg_leb_change
@@ -323,7 +272,6 @@ int dbg_force_in_the_gaps(void);
323#define ubi_leb_unmap dbg_leb_unmap 272#define ubi_leb_unmap dbg_leb_unmap
324#define ubi_is_mapped dbg_is_mapped 273#define ubi_is_mapped dbg_is_mapped
325#define ubi_leb_map dbg_leb_map 274#define ubi_leb_map dbg_leb_map
326
327#endif 275#endif
328 276
329int dbg_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset, 277int dbg_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
@@ -370,33 +318,33 @@ void dbg_debugfs_exit_fs(struct ubifs_info *c);
370 __func__, __LINE__, current->pid); \ 318 __func__, __LINE__, current->pid); \
371} while (0) 319} while (0)
372 320
373#define dbg_err(fmt, ...) do { \ 321#define dbg_err(fmt, ...) do { \
374 if (0) \ 322 if (0) \
375 ubifs_err(fmt, ##__VA_ARGS__); \ 323 ubifs_err(fmt, ##__VA_ARGS__); \
376} while (0) 324} while (0)
377 325
378#define dbg_msg(fmt, ...) do { \ 326#define ubifs_dbg_msg(fmt, ...) do { \
379 if (0) \ 327 if (0) \
380 printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", \ 328 pr_debug(fmt "\n", ##__VA_ARGS__); \
381 current->pid, __func__, ##__VA_ARGS__); \
382} while (0) 329} while (0)
383 330
384#define dbg_dump_stack() 331#define dbg_dump_stack()
385#define ubifs_assert_cmt_locked(c) 332#define ubifs_assert_cmt_locked(c)
386 333
387#define dbg_gen(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 334#define dbg_msg(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
388#define dbg_jnl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 335#define dbg_gen(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
389#define dbg_tnc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 336#define dbg_jnl(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
390#define dbg_lp(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 337#define dbg_tnc(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
391#define dbg_find(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 338#define dbg_lp(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
392#define dbg_mnt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 339#define dbg_find(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
393#define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 340#define dbg_mnt(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
394#define dbg_cmt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 341#define dbg_io(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
395#define dbg_budg(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 342#define dbg_cmt(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
396#define dbg_log(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 343#define dbg_budg(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
397#define dbg_gc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 344#define dbg_log(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
398#define dbg_scan(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 345#define dbg_gc(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
399#define dbg_rcvry(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) 346#define dbg_scan(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
347#define dbg_rcvry(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
400 348
401#define DBGKEY(key) ((char *)(key)) 349#define DBGKEY(key) ((char *)(key))
402#define DBGKEY1(key) ((char *)(key)) 350#define DBGKEY1(key) ((char *)(key))
@@ -420,7 +368,9 @@ static inline void
420dbg_dump_budget_req(const struct ubifs_budget_req *req) { return; } 368dbg_dump_budget_req(const struct ubifs_budget_req *req) { return; }
421static inline void 369static inline void
422dbg_dump_lstats(const struct ubifs_lp_stats *lst) { return; } 370dbg_dump_lstats(const struct ubifs_lp_stats *lst) { return; }
423static inline void dbg_dump_budg(struct ubifs_info *c) { return; } 371static inline void
372dbg_dump_budg(struct ubifs_info *c,
373 const struct ubifs_budg_info *bi) { return; }
424static inline void dbg_dump_lprop(const struct ubifs_info *c, 374static inline void dbg_dump_lprop(const struct ubifs_info *c,
425 const struct ubifs_lprops *lp) { return; } 375 const struct ubifs_lprops *lp) { return; }
426static inline void dbg_dump_lprops(struct ubifs_info *c) { return; } 376static inline void dbg_dump_lprops(struct ubifs_info *c) { return; }
@@ -482,8 +432,8 @@ dbg_check_nondata_nodes_order(struct ubifs_info *c,
482 struct list_head *head) { return 0; } 432 struct list_head *head) { return 0; }
483 433
484static inline int dbg_force_in_the_gaps(void) { return 0; } 434static inline int dbg_force_in_the_gaps(void) { return 0; }
485#define dbg_force_in_the_gaps_enabled 0 435#define dbg_force_in_the_gaps_enabled() 0
486#define dbg_failure_mode 0 436#define dbg_failure_mode 0
487 437
488static inline int dbg_debugfs_init(void) { return 0; } 438static inline int dbg_debugfs_init(void) { return 0; }
489static inline void dbg_debugfs_exit(void) { return; } 439static inline void dbg_debugfs_exit(void) { return; }