[people/ms/u-boot.git] / fs / ubifs / debug.h

/*
 * This file is part of UBIFS.
 *
 * Copyright (C) 2006-2008 Nokia Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * Authors: Artem Bityutskiy (Битюцкий Артём)
 *          Adrian Hunter
 */

#ifndef __UBIFS_DEBUG_H__
#define __UBIFS_DEBUG_H__

#ifdef CONFIG_UBIFS_FS_DEBUG

/**
 * ubifs_debug_info - per-FS debugging information.
 * @buf: a buffer of LEB size, used for various purposes
 * @old_zroot: old index root - used by 'dbg_check_old_index()'
 * @old_zroot_level: old index root level - used by 'dbg_check_old_index()'
 * @old_zroot_sqnum: old index root sqnum - used by 'dbg_check_old_index()'
 * @failure_mode: failure mode for recovery testing
 * @fail_delay: 0=>don't delay, 1=>delay a time, 2=>delay a number of calls
 * @fail_timeout: time in jiffies when delay of failure mode expires
 * @fail_cnt: current number of calls to failure mode I/O functions
 * @fail_cnt_max: number of calls by which to delay failure mode
 * @chk_lpt_sz: used by LPT tree size checker
 * @chk_lpt_sz2: used by LPT tree size checker
 * @chk_lpt_wastage: used by LPT tree size checker
 * @chk_lpt_lebs: used by LPT tree size checker
 * @new_nhead_offs: used by LPT tree size checker
 * @new_ihead_lnum: used by debugging to check @c->ihead_lnum
 * @new_ihead_offs: used by debugging to check @c->ihead_offs
 *
 * @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()')
 * @saved_free: saved free space (used by 'dbg_save_space_info()')
 *
 * dfs_dir_name: name of debugfs directory containing this file-system's files
 * dfs_dir: direntry object of the file-system debugfs directory
 * dfs_dump_lprops: "dump lprops" debugfs knob
 * dfs_dump_budg: "dump budgeting information" debugfs knob
 * dfs_dump_tnc: "dump TNC" debugfs knob
 */
struct ubifs_debug_info {
	void *buf;
	struct ubifs_zbranch old_zroot;
	int old_zroot_level;
	unsigned long long old_zroot_sqnum;
	int failure_mode;
	int fail_delay;
	unsigned long fail_timeout;
	unsigned int fail_cnt;
	unsigned int fail_cnt_max;
	long long chk_lpt_sz;
	long long chk_lpt_sz2;
	long long chk_lpt_wastage;
	int chk_lpt_lebs;
	int new_nhead_offs;
	int new_ihead_lnum;
	int new_ihead_offs;

	struct ubifs_lp_stats saved_lst;
	long long saved_free;

	char dfs_dir_name[100];
	struct dentry *dfs_dir;
	struct dentry *dfs_dump_lprops;
	struct dentry *dfs_dump_budg;
	struct dentry *dfs_dump_tnc;
};

#define UBIFS_DBG(op) op

#define ubifs_assert(expr) do {                                                \
	if (unlikely(!(expr))) {                                               \
		printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
		       __func__, __LINE__, 0);                      \
		dbg_dump_stack();                                              \
	}                                                                      \
} while (0)

#define ubifs_assert_cmt_locked(c) do {                                        \
	if (unlikely(down_write_trylock(&(c)->commit_sem))) {                  \
		up_write(&(c)->commit_sem);                                    \
		printk(KERN_CRIT "commit lock is not locked!\n");              \
		ubifs_assert(0);                                               \
	}                                                                      \
} while (0)

#define dbg_dump_stack() do {                                                  \
	if (!dbg_failure_mode)                                                 \
		dump_stack();                                                  \
} while (0)

/* Generic debugging messages */
#define dbg_msg(fmt, ...) do {                                                 \
	spin_lock(&dbg_lock);                                                  \
	printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", 0,   \
	       __func__, ##__VA_ARGS__);                                       \
	spin_unlock(&dbg_lock);                                                \
} while (0)

#define dbg_do_msg(typ, fmt, ...) do {                                         \
	if (ubifs_msg_flags & typ)                                             \
		dbg_msg(fmt, ##__VA_ARGS__);                                   \
} while (0)

#define dbg_err(fmt, ...) do {                                                 \
	spin_lock(&dbg_lock);                                                  \
	ubifs_err(fmt, ##__VA_ARGS__);                                         \
	spin_unlock(&dbg_lock);                                                \
} while (0)

const char *dbg_key_str0(const struct ubifs_info *c,
			 const union ubifs_key *key);
const char *dbg_key_str1(const struct ubifs_info *c,
			 const union ubifs_key *key);

/*
 * DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
 * macros.
 */
#define DBGKEY(key)	dbg_key_str0(c, (key))
#define DBGKEY1(key)	dbg_key_str1(c, (key))

/* General messages */
#define dbg_gen(fmt, ...)   dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__)

/* Additional journal messages */
#define dbg_jnl(fmt, ...)   dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__)

/* Additional TNC messages */
#define dbg_tnc(fmt, ...)   dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__)

/* Additional lprops messages */
#define dbg_lp(fmt, ...)    dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__)

/* Additional LEB find messages */
#define dbg_find(fmt, ...)  dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__)

/* Additional mount messages */
#define dbg_mnt(fmt, ...)   dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__)

/* Additional I/O messages */
#define dbg_io(fmt, ...)    dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__)

/* Additional commit messages */
#define dbg_cmt(fmt, ...)   dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__)

/* Additional budgeting messages */
#define dbg_budg(fmt, ...)  dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__)

/* Additional log messages */
#define dbg_log(fmt, ...)   dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__)

/* Additional gc messages */
#define dbg_gc(fmt, ...)    dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__)

/* Additional scan messages */
#define dbg_scan(fmt, ...)  dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__)

/* Additional recovery messages */
#define dbg_rcvry(fmt, ...) dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__)

/*
 * Debugging message type flags (must match msg_type_names in debug.c).
 *
 * UBIFS_MSG_GEN: general messages
 * UBIFS_MSG_JNL: journal messages
 * UBIFS_MSG_MNT: mount messages
 * UBIFS_MSG_CMT: commit messages
 * UBIFS_MSG_FIND: LEB find messages
 * UBIFS_MSG_BUDG: budgeting messages
 * UBIFS_MSG_GC: garbage collection messages
 * UBIFS_MSG_TNC: TNC messages
 * UBIFS_MSG_LP: lprops messages
 * UBIFS_MSG_IO: I/O messages
 * UBIFS_MSG_LOG: log messages
 * UBIFS_MSG_SCAN: scan messages
 * UBIFS_MSG_RCVRY: recovery messages
 */
enum {
	UBIFS_MSG_GEN   = 0x1,
	UBIFS_MSG_JNL   = 0x2,
	UBIFS_MSG_MNT   = 0x4,
	UBIFS_MSG_CMT   = 0x8,
	UBIFS_MSG_FIND  = 0x10,
	UBIFS_MSG_BUDG  = 0x20,
	UBIFS_MSG_GC    = 0x40,
	UBIFS_MSG_TNC   = 0x80,
	UBIFS_MSG_LP    = 0x100,
	UBIFS_MSG_IO    = 0x200,
	UBIFS_MSG_LOG   = 0x400,
	UBIFS_MSG_SCAN  = 0x800,
	UBIFS_MSG_RCVRY = 0x1000,
};

/* Debugging message type flags for each default debug message level */
#define UBIFS_MSG_LVL_0 0
#define UBIFS_MSG_LVL_1 0x1
#define UBIFS_MSG_LVL_2 0x7f
#define UBIFS_MSG_LVL_3 0xffff

/*
 * Debugging check flags (must match chk_names in debug.c).
 *
 * UBIFS_CHK_GEN: general checks
 * UBIFS_CHK_TNC: check TNC
 * UBIFS_CHK_IDX_SZ: check index size
 * UBIFS_CHK_ORPH: check orphans
 * UBIFS_CHK_OLD_IDX: check the old index
 * UBIFS_CHK_LPROPS: check lprops
 * UBIFS_CHK_FS: check the file-system
 */
enum {
	UBIFS_CHK_GEN     = 0x1,
	UBIFS_CHK_TNC     = 0x2,
	UBIFS_CHK_IDX_SZ  = 0x4,
	UBIFS_CHK_ORPH    = 0x8,
	UBIFS_CHK_OLD_IDX = 0x10,
	UBIFS_CHK_LPROPS  = 0x20,
	UBIFS_CHK_FS      = 0x40,
};

/*
 * Special testing flags (must match tst_names in debug.c).
 *
 * UBIFS_TST_FORCE_IN_THE_GAPS: force the use of in-the-gaps method
 * UBIFS_TST_RCVRY: failure mode for recovery testing
 */
enum {
	UBIFS_TST_FORCE_IN_THE_GAPS = 0x2,
	UBIFS_TST_RCVRY             = 0x4,
};

#if CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 1
#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_1
#elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 2
#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_2
#elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 3
#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_3
#else
#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_0
#endif

#ifdef CONFIG_UBIFS_FS_DEBUG_CHKS
#define UBIFS_CHK_FLAGS_DEFAULT 0xffffffff
#else
#define UBIFS_CHK_FLAGS_DEFAULT 0
#endif

#define dbg_ntype(type)                       ""
#define dbg_cstate(cmt_state)                 ""
#define dbg_get_key_dump(c, key)              ({})
#define dbg_dump_inode(c, inode)              ({})
#define dbg_dump_node(c, node)                ({})
#define dbg_dump_budget_req(req)              ({})
#define dbg_dump_lstats(lst)                  ({})
#define dbg_dump_budg(c)                      ({})
#define dbg_dump_lprop(c, lp)                 ({})
#define dbg_dump_lprops(c)                    ({})
#define dbg_dump_lpt_info(c)                  ({})
#define dbg_dump_leb(c, lnum)                 ({})
#define dbg_dump_znode(c, znode)              ({})
#define dbg_dump_heap(c, heap, cat)           ({})
#define dbg_dump_pnode(c, pnode, parent, iip) ({})
#define dbg_dump_tnc(c)                       ({})
#define dbg_dump_index(c)                     ({})

#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
#define dbg_old_index_check_init(c, zroot)         0
#define dbg_check_old_index(c, zroot)              0
#define dbg_check_cats(c)                          0
#define dbg_check_ltab(c)                          0
#define dbg_chk_lpt_free_spc(c)                    0
#define dbg_chk_lpt_sz(c, action, len)             0
#define dbg_check_synced_i_size(inode)             0
#define dbg_check_dir_size(c, dir)                 0
#define dbg_check_tnc(c, x)                        0
#define dbg_check_idx_size(c, idx_size)            0
#define dbg_check_filesystem(c)                    0
#define dbg_check_heap(c, heap, cat, add_pos)      ({})
#define dbg_check_lprops(c)                        0
#define dbg_check_lpt_nodes(c, cnode, row, col)    0
#define dbg_force_in_the_gaps_enabled              0
#define dbg_force_in_the_gaps()                    0
#define dbg_failure_mode                           0
#define dbg_failure_mode_registration(c)           ({})
#define dbg_failure_mode_deregistration(c)         ({})

int ubifs_debugging_init(struct ubifs_info *c);
void ubifs_debugging_exit(struct ubifs_info *c);

#else /* !CONFIG_UBIFS_FS_DEBUG */

#define UBIFS_DBG(op)

/* Use "if (0)" to make compiler check arguments even if debugging is off */
#define ubifs_assert(expr)  do {                                               \
	if (0 && (expr))                                                       \
		printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
		       __func__, __LINE__, 0);                      \
} while (0)

#define dbg_err(fmt, ...)   do {                                               \
	if (0)                                                                 \
		ubifs_err(fmt, ##__VA_ARGS__);                                 \
} while (0)

#define dbg_msg(fmt, ...) do {                                                 \
	if (0)                                                                 \
		printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n",         \
		       0, __func__, ##__VA_ARGS__);                 \
} while (0)

#define dbg_dump_stack()
#define ubifs_assert_cmt_locked(c)

#define dbg_gen(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_jnl(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_tnc(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_lp(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_find(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_mnt(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_io(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_cmt(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_budg(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_log(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_gc(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_scan(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
#define dbg_rcvry(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)

#define DBGKEY(key)  ((char *)(key))
#define DBGKEY1(key) ((char *)(key))

#define ubifs_debugging_init(c)                0
#define ubifs_debugging_exit(c)                ({})

#define dbg_ntype(type)                       ""
#define dbg_cstate(cmt_state)                 ""
#define dbg_get_key_dump(c, key)              ({})
#define dbg_dump_inode(c, inode)              ({})
#define dbg_dump_node(c, node)                ({})
#define dbg_dump_budget_req(req)              ({})
#define dbg_dump_lstats(lst)                  ({})
#define dbg_dump_budg(c)                      ({})
#define dbg_dump_lprop(c, lp)                 ({})
#define dbg_dump_lprops(c)                    ({})
#define dbg_dump_lpt_info(c)                  ({})
#define dbg_dump_leb(c, lnum)                 ({})
#define dbg_dump_znode(c, znode)              ({})
#define dbg_dump_heap(c, heap, cat)           ({})
#define dbg_dump_pnode(c, pnode, parent, iip) ({})
#define dbg_dump_tnc(c)                       ({})
#define dbg_dump_index(c)                     ({})

#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
#define dbg_old_index_check_init(c, zroot)         0
#define dbg_check_old_index(c, zroot)              0
#define dbg_check_cats(c)                          0
#define dbg_check_ltab(c)                          0
#define dbg_chk_lpt_free_spc(c)                    0
#define dbg_chk_lpt_sz(c, action, len)             0
#define dbg_check_synced_i_size(inode)             0
#define dbg_check_dir_size(c, dir)                 0
#define dbg_check_tnc(c, x)                        0
#define dbg_check_idx_size(c, idx_size)            0
#define dbg_check_filesystem(c)                    0
#define dbg_check_heap(c, heap, cat, add_pos)      ({})
#define dbg_check_lprops(c)                        0
#define dbg_check_lpt_nodes(c, cnode, row, col)    0
#define dbg_force_in_the_gaps_enabled              0
#define dbg_force_in_the_gaps()                    0
#define dbg_failure_mode                           0
#define dbg_failure_mode_registration(c)           ({})
#define dbg_failure_mode_deregistration(c)         ({})

#endif /* !CONFIG_UBIFS_FS_DEBUG */

#endif /* !__UBIFS_DEBUG_H__ */
Commit	Line	Data
9eefe2a2 SR	1	/*
	2	* This file is part of UBIFS.
	3	*
	4	* Copyright (C) 2006-2008 Nokia Corporation.
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License version 2 as published by
	8	* the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along with
	16	* this program; if not, write to the Free Software Foundation, Inc., 51
	17	* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*
	19	* Authors: Artem Bityutskiy (Битюцкий Артём)
	20	* Adrian Hunter
	21	*/
	22
	23	#ifndef __UBIFS_DEBUG_H__
	24	#define __UBIFS_DEBUG_H__
	25
	26	#ifdef CONFIG_UBIFS_FS_DEBUG
	27
	28	/**
	29	* ubifs_debug_info - per-FS debugging information.
	30	* @buf: a buffer of LEB size, used for various purposes
	31	* @old_zroot: old index root - used by 'dbg_check_old_index()'
	32	* @old_zroot_level: old index root level - used by 'dbg_check_old_index()'
	33	* @old_zroot_sqnum: old index root sqnum - used by 'dbg_check_old_index()'
	34	* @failure_mode: failure mode for recovery testing
	35	* @fail_delay: 0=>don't delay, 1=>delay a time, 2=>delay a number of calls
	36	* @fail_timeout: time in jiffies when delay of failure mode expires
	37	* @fail_cnt: current number of calls to failure mode I/O functions
	38	* @fail_cnt_max: number of calls by which to delay failure mode
	39	* @chk_lpt_sz: used by LPT tree size checker
	40	* @chk_lpt_sz2: used by LPT tree size checker
	41	* @chk_lpt_wastage: used by LPT tree size checker
	42	* @chk_lpt_lebs: used by LPT tree size checker
	43	* @new_nhead_offs: used by LPT tree size checker
	44	* @new_ihead_lnum: used by debugging to check @c->ihead_lnum
	45	* @new_ihead_offs: used by debugging to check @c->ihead_offs
	46	*
	47	* @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()')
	48	* @saved_free: saved free space (used by 'dbg_save_space_info()')
	49	*
	50	* dfs_dir_name: name of debugfs directory containing this file-system's files
	51	* dfs_dir: direntry object of the file-system debugfs directory
	52	* dfs_dump_lprops: "dump lprops" debugfs knob
	53	* dfs_dump_budg: "dump budgeting information" debugfs knob
	54	* dfs_dump_tnc: "dump TNC" debugfs knob
	55	*/
	56	struct ubifs_debug_info {
	57	void *buf;
	58	struct ubifs_zbranch old_zroot;
	59	int old_zroot_level;
	60	unsigned long long old_zroot_sqnum;
	61	int failure_mode;
	62	int fail_delay;
	63	unsigned long fail_timeout;
	64	unsigned int fail_cnt;
65	unsigned int fail_cnt_max;
66	long long chk_lpt_sz;
67	long long chk_lpt_sz2;
68	long long chk_lpt_wastage;
69	int chk_lpt_lebs;
70	int new_nhead_offs;
71	int new_ihead_lnum;
72	int new_ihead_offs;
73
74	struct ubifs_lp_stats saved_lst;
75	long long saved_free;
76
77	char dfs_dir_name[100];
78	struct dentry *dfs_dir;
79	struct dentry *dfs_dump_lprops;
80	struct dentry *dfs_dump_budg;
81	struct dentry *dfs_dump_tnc;
82	};
83
84	#define UBIFS_DBG(op) op
85
86	#define ubifs_assert(expr) do { \
87	if (unlikely(!(expr))) { \
88	printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
89	__func__, __LINE__, 0); \
90	dbg_dump_stack(); \
91	} \
92	} while (0)
93
94	#define ubifs_assert_cmt_locked(c) do { \
95	if (unlikely(down_write_trylock(&(c)->commit_sem))) { \
96	up_write(&(c)->commit_sem); \
97	printk(KERN_CRIT "commit lock is not locked!\n"); \
98	ubifs_assert(0); \
99	} \
100	} while (0)
101
102	#define dbg_dump_stack() do { \
103	if (!dbg_failure_mode) \
104	dump_stack(); \
105	} while (0)
106
107	/* Generic debugging messages */
108	#define dbg_msg(fmt, ...) do { \
109	spin_lock(&dbg_lock); \
110	printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", 0, \
111	__func__, ##__VA_ARGS__); \
112	spin_unlock(&dbg_lock); \
113	} while (0)
114
115	#define dbg_do_msg(typ, fmt, ...) do { \
116	if (ubifs_msg_flags & typ) \
117	dbg_msg(fmt, ##__VA_ARGS__); \
118	} while (0)
119
120	#define dbg_err(fmt, ...) do { \
121	spin_lock(&dbg_lock); \
122	ubifs_err(fmt, ##__VA_ARGS__); \
123	spin_unlock(&dbg_lock); \
124	} while (0)
125
126	const char dbg_key_str0(const struct ubifs_info c,
127	const union ubifs_key *key);
128	const char dbg_key_str1(const struct ubifs_info c,
129	const union ubifs_key *key);
130
131	/*
132	* DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
133	* macros.
134	*/
135	#define DBGKEY(key) dbg_key_str0(c, (key))
136	#define DBGKEY1(key) dbg_key_str1(c, (key))
137
138	/* General messages */
139	#define dbg_gen(fmt, ...) dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__)
140
141	/* Additional journal messages */
142	#define dbg_jnl(fmt, ...) dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__)
143
144	/* Additional TNC messages */
145	#define dbg_tnc(fmt, ...) dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__)
146
147	/* Additional lprops messages */
148	#define dbg_lp(fmt, ...) dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__)
149
150	/* Additional LEB find messages */
151	#define dbg_find(fmt, ...) dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__)
152
153	/* Additional mount messages */
154	#define dbg_mnt(fmt, ...) dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__)
155
156	/* Additional I/O messages */
157	#define dbg_io(fmt, ...) dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__)
158
159	/* Additional commit messages */
160	#define dbg_cmt(fmt, ...) dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__)
161
162	/* Additional budgeting messages */
163	#define dbg_budg(fmt, ...) dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__)
164
165	/* Additional log messages */
166	#define dbg_log(fmt, ...) dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__)
167
168	/* Additional gc messages */
169	#define dbg_gc(fmt, ...) dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__)
170
171	/* Additional scan messages */
172	#define dbg_scan(fmt, ...) dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__)
173
174	/* Additional recovery messages */
175	#define dbg_rcvry(fmt, ...) dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__)
176
177	/*
178	* Debugging message type flags (must match msg_type_names in debug.c).
179	*
180	* UBIFS_MSG_GEN: general messages
181	* UBIFS_MSG_JNL: journal messages
182	* UBIFS_MSG_MNT: mount messages
183	* UBIFS_MSG_CMT: commit messages
184	* UBIFS_MSG_FIND: LEB find messages
185	* UBIFS_MSG_BUDG: budgeting messages
186	* UBIFS_MSG_GC: garbage collection messages
187	* UBIFS_MSG_TNC: TNC messages
188	* UBIFS_MSG_LP: lprops messages
189	* UBIFS_MSG_IO: I/O messages
190	* UBIFS_MSG_LOG: log messages
191	* UBIFS_MSG_SCAN: scan messages
192	* UBIFS_MSG_RCVRY: recovery messages
193	*/
194	enum {
195	UBIFS_MSG_GEN = 0x1,
196	UBIFS_MSG_JNL = 0x2,
197	UBIFS_MSG_MNT = 0x4,
198	UBIFS_MSG_CMT = 0x8,
199	UBIFS_MSG_FIND = 0x10,
200	UBIFS_MSG_BUDG = 0x20,
201	UBIFS_MSG_GC = 0x40,
202	UBIFS_MSG_TNC = 0x80,
203	UBIFS_MSG_LP = 0x100,
204	UBIFS_MSG_IO = 0x200,
205	UBIFS_MSG_LOG = 0x400,
206	UBIFS_MSG_SCAN = 0x800,
207	UBIFS_MSG_RCVRY = 0x1000,
208	};
209
210	/* Debugging message type flags for each default debug message level */
211	#define UBIFS_MSG_LVL_0 0
212	#define UBIFS_MSG_LVL_1 0x1
213	#define UBIFS_MSG_LVL_2 0x7f
214	#define UBIFS_MSG_LVL_3 0xffff
215
216	/*
217	* Debugging check flags (must match chk_names in debug.c).
218	*
219	* UBIFS_CHK_GEN: general checks
220	* UBIFS_CHK_TNC: check TNC
221	* UBIFS_CHK_IDX_SZ: check index size
222	* UBIFS_CHK_ORPH: check orphans
223	* UBIFS_CHK_OLD_IDX: check the old index
224	* UBIFS_CHK_LPROPS: check lprops
225	* UBIFS_CHK_FS: check the file-system
226	*/
227	enum {
228	UBIFS_CHK_GEN = 0x1,
229	UBIFS_CHK_TNC = 0x2,
230	UBIFS_CHK_IDX_SZ = 0x4,
231	UBIFS_CHK_ORPH = 0x8,
232	UBIFS_CHK_OLD_IDX = 0x10,
233	UBIFS_CHK_LPROPS = 0x20,
234	UBIFS_CHK_FS = 0x40,
235	};
236
237	/*
238	* Special testing flags (must match tst_names in debug.c).
239	*
240	* UBIFS_TST_FORCE_IN_THE_GAPS: force the use of in-the-gaps method
241	* UBIFS_TST_RCVRY: failure mode for recovery testing
242	*/
243	enum {
244	UBIFS_TST_FORCE_IN_THE_GAPS = 0x2,
245	UBIFS_TST_RCVRY = 0x4,
246	};
247
248	#if CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 1
249	#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_1
250	#elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 2
251	#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_2
252	#elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 3
253	#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_3
254	#else
255	#define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_0
256	#endif
257
258	#ifdef CONFIG_UBIFS_FS_DEBUG_CHKS
259	#define UBIFS_CHK_FLAGS_DEFAULT 0xffffffff
260	#else
261	#define UBIFS_CHK_FLAGS_DEFAULT 0
262	#endif
263
264	#define dbg_ntype(type) ""
265	#define dbg_cstate(cmt_state) ""
266	#define dbg_get_key_dump(c, key) ({})
267	#define dbg_dump_inode(c, inode) ({})
268	#define dbg_dump_node(c, node) ({})
269	#define dbg_dump_budget_req(req) ({})
270	#define dbg_dump_lstats(lst) ({})
271	#define dbg_dump_budg(c) ({})
272	#define dbg_dump_lprop(c, lp) ({})
273	#define dbg_dump_lprops(c) ({})
274	#define dbg_dump_lpt_info(c) ({})
275	#define dbg_dump_leb(c, lnum) ({})
276	#define dbg_dump_znode(c, znode) ({})
277	#define dbg_dump_heap(c, heap, cat) ({})
278	#define dbg_dump_pnode(c, pnode, parent, iip) ({})
279	#define dbg_dump_tnc(c) ({})
280	#define dbg_dump_index(c) ({})
281
282	#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
283	#define dbg_old_index_check_init(c, zroot) 0
284	#define dbg_check_old_index(c, zroot) 0
285	#define dbg_check_cats(c) 0
286	#define dbg_check_ltab(c) 0
287	#define dbg_chk_lpt_free_spc(c) 0
288	#define dbg_chk_lpt_sz(c, action, len) 0
289	#define dbg_check_synced_i_size(inode) 0
290	#define dbg_check_dir_size(c, dir) 0
291	#define dbg_check_tnc(c, x) 0
292	#define dbg_check_idx_size(c, idx_size) 0
293	#define dbg_check_filesystem(c) 0
294	#define dbg_check_heap(c, heap, cat, add_pos) ({})
295	#define dbg_check_lprops(c) 0
296	#define dbg_check_lpt_nodes(c, cnode, row, col) 0
297	#define dbg_force_in_the_gaps_enabled 0
298	#define dbg_force_in_the_gaps() 0
299	#define dbg_failure_mode 0
300	#define dbg_failure_mode_registration(c) ({})
301	#define dbg_failure_mode_deregistration(c) ({})
302
303	int ubifs_debugging_init(struct ubifs_info *c);
304	void ubifs_debugging_exit(struct ubifs_info *c);
305
306	#else /* !CONFIG_UBIFS_FS_DEBUG */
307
308	#define UBIFS_DBG(op)
309
310	/* Use "if (0)" to make compiler check arguments even if debugging is off */
311	#define ubifs_assert(expr) do { \
312	if (0 && (expr)) \
313	printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
314	__func__, __LINE__, 0); \
315	} while (0)
316
317	#define dbg_err(fmt, ...) do { \
318	if (0) \
319	ubifs_err(fmt, ##__VA_ARGS__); \
320	} while (0)
321
322	#define dbg_msg(fmt, ...) do { \
323	if (0) \
324	printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", \
325	0, __func__, ##__VA_ARGS__); \
326	} while (0)
327
328	#define dbg_dump_stack()
329	#define ubifs_assert_cmt_locked(c)
330
331	#define dbg_gen(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
332	#define dbg_jnl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
333	#define dbg_tnc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
334	#define dbg_lp(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
335	#define dbg_find(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
336	#define dbg_mnt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
337	#define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
338	#define dbg_cmt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
339	#define dbg_budg(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
340	#define dbg_log(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
341	#define dbg_gc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
342	#define dbg_scan(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
343	#define dbg_rcvry(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
344
345	#define DBGKEY(key) ((char *)(key))
346	#define DBGKEY1(key) ((char *)(key))
347
348	#define ubifs_debugging_init(c) 0
349	#define ubifs_debugging_exit(c) ({})
350
351	#define dbg_ntype(type) ""
352	#define dbg_cstate(cmt_state) ""
353	#define dbg_get_key_dump(c, key) ({})
354	#define dbg_dump_inode(c, inode) ({})
355	#define dbg_dump_node(c, node) ({})
356	#define dbg_dump_budget_req(req) ({})
357	#define dbg_dump_lstats(lst) ({})
358	#define dbg_dump_budg(c) ({})
359	#define dbg_dump_lprop(c, lp) ({})
360	#define dbg_dump_lprops(c) ({})
361	#define dbg_dump_lpt_info(c) ({})
362	#define dbg_dump_leb(c, lnum) ({})
363	#define dbg_dump_znode(c, znode) ({})
364	#define dbg_dump_heap(c, heap, cat) ({})
365	#define dbg_dump_pnode(c, pnode, parent, iip) ({})
366	#define dbg_dump_tnc(c) ({})
367	#define dbg_dump_index(c) ({})
368
369	#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
370	#define dbg_old_index_check_init(c, zroot) 0
371	#define dbg_check_old_index(c, zroot) 0
372	#define dbg_check_cats(c) 0
373	#define dbg_check_ltab(c) 0
374	#define dbg_chk_lpt_free_spc(c) 0
375	#define dbg_chk_lpt_sz(c, action, len) 0
376	#define dbg_check_synced_i_size(inode) 0
377	#define dbg_check_dir_size(c, dir) 0
378	#define dbg_check_tnc(c, x) 0
379	#define dbg_check_idx_size(c, idx_size) 0
380	#define dbg_check_filesystem(c) 0
381	#define dbg_check_heap(c, heap, cat, add_pos) ({})
382	#define dbg_check_lprops(c) 0
383	#define dbg_check_lpt_nodes(c, cnode, row, col) 0
384	#define dbg_force_in_the_gaps_enabled 0
385	#define dbg_force_in_the_gaps() 0
386	#define dbg_failure_mode 0
387	#define dbg_failure_mode_registration(c) ({})
388	#define dbg_failure_mode_deregistration(c) ({})
389
390	#endif /* !CONFIG_UBIFS_FS_DEBUG */
391
392	#endif /* !__UBIFS_DEBUG_H__ */