fs/jffs2/debug.h - kernel/msm-4.9 - Gitiles

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
  * Copyright (C) 2001-2003 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  * $Id: debug.h,v 1.5 2005/07/24 15:14:14 dedekind Exp $
  *
  */
 #ifndef _JFFS2_DEBUG_H_
 #define _JFFS2_DEBUG_H_

 #include <linux/config.h>

 /* ------------------------------------------------ */
 /* TODO: remove */
 #undef CONFIG_JFFS2_FS_DEBUG
 #define CONFIG_JFFS2_FS_DEBUG 0
 //#define JFFS2_DBG_PARANOIA_CHECKS
 //#define JFFS2_DBG_DUMPS
 #define JFFS2_DBG_READINODE_MESSAGES
 //#define JFFS2_DBG_FRAGTREE_MESSAGES
 //#define JFFS2_DBG_FRAGTREE2_MESSAGES
 #undef KERN_DEBUG
 #undef KERN_WARNING
 #undef KERN_NOTICE
 #undef KERN_ERR
 #define KERN_DEBUG   KERN_CRIT
 #define KERN_WARNING KERN_CRIT
 #define KERN_NOTICE  KERN_CRIT
 #define KERN_ERR     KERN_CRIT
 /* ------------------------------------------------ */

 #ifndef CONFIG_JFFS2_FS_DEBUG
 #define CONFIG_JFFS2_FS_DEBUG 1
 #endif

 #if CONFIG_JFFS2_FS_DEBUG == 1
 /* Enable "paranoia" checks and dumps */
 #define JFFS2_DBG_PARANOIA_CHECKS
 #define JFFS2_DBG_DUMPS
 #define JFFS2_DBG_READINODE_MESSAGES
 #define JFFS2_DBG_FRAGTREE_MESSAGES
 #define JFFS2_DBG_DENTLIST_MESSAGES
 #define JFFS2_DBG_NODEREF_MESSAGES
 #define JFFS2_DBG_INOCACHE_MESSAGES
 #endif

 #if CONFIG_JFFS2_FS_DEBUG == 2
 #define JFFS2_DBG_FRAGTREE2_MESSAGES
 #endif

 /* Enable JFFS2 sanity checks by default */
 #define JFFS2_DBG_SANITY_CHECKS

 /*
  * Dx() are mainly used for debugging messages, they must go away and be
  * superseded by nicer JFFS2_DBG_XXX() macros...
  */
 #if CONFIG_JFFS2_FS_DEBUG > 0
 #define D1(x) x
 #else
 #define D1(x)
 #endif

 #if CONFIG_JFFS2_FS_DEBUG > 1
 #define D2(x) x
 #else
 #define D2(x)
 #endif

 /* The prefixes of JFFS2 messages */
 #define JFFS2_DBG_MSG_PREFIX "[JFFS2 DBG]"
 #define JFFS2_ERR_MSG_PREFIX "JFFS2 error: "
 #define JFFS2_WARN_MSG_PREFIX "JFFS2 warning: "
 #define JFFS2_NOTICE_MSG_PREFIX "JFFS2 notice: "

 #define JFFS2_ERR_LVL		KERN_ERR
 #define JFFS2_WARN_LVL		KERN_WARNING
 #define JFFS2_NOTICE_LVL	KERN_NOTICE
 #define JFFS2_DBG_LVL		KERN_DEBUG

 /* JFFS2 message macros */
 #define JFFS2_ERROR(fmt, ...)						\
 	do {								\
 		printk(JFFS2_ERR_LVL JFFS2_ERR_MSG_PREFIX " %s: "	\
 				fmt, __FUNCTION__, ##__VA_ARGS__);	\
 	} while(0)

 #define JFFS2_WARNING(fmt, ...)						\
 	do {								\
 		printk(JFFS2_WARN_LVL JFFS2_WARN_MSG_PREFIX " %s: "	\
 				fmt, __FUNCTION__, ##__VA_ARGS__);	\
 	} while(0)

 #define JFFS2_NOTICE(fmt, ...)						\
 	do {								\
 		printk(JFFS2_NOTICE_LVL JFFS2_NOTICE_MSG_PREFIX " %s: "	\
 				fmt, __FUNCTION__, ##__VA_ARGS__);	\
 	} while(0)

 #define JFFS2_DEBUG(fmt, ...)						\
 	do {								\
 		printk(JFFS2_DBG_LVL JFFS2_DBG_MSG_PREFIX " %s: "	\
 				fmt, __FUNCTION__, ##__VA_ARGS__);	\
 	} while(0)

 /*
  * We split our debugging messages on several parts, depending on the JFFS2
  * subsystem the message belongs to.
  */
 /* Read inode debugging messages */
 #ifdef JFFS2_DBG_READINODE_MESSAGES
 #define JFFS2_DBG_READINODE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_READINODE(fmt, ...)
 #endif

 /* Fragtree build debugging messages */
 #ifdef JFFS2_DBG_FRAGTREE_MESSAGES
 #define JFFS2_DBG_FRAGTREE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_FRAGTREE(fmt, ...)
 #endif

 /* Directory entry list manilulation debugging messages */
 #ifdef JFFS2_DBG_DENTLIST_MESSAGES
 #define JFFS2_DBG_DENTLIST(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_DENTLIST(fmt, ...)
 #endif
 #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
 #define JFFS2_DBG_FRAGTREE2(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_FRAGTREE2(fmt, ...)
 #endif

 /* Plays with node_refs */
 #ifdef JFFS2_DBG_NODEREF_MESSAGES
 #define JFFS2_DBG_NODEREF(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_NODEREF(fmt, ...)
 #endif

 /* Plays with the list of inodes (JFFS2 inocache) */
 #ifdef JFFS2_DBG_INOCACHE_MESSAGES
 #define JFFS2_DBG_INOCACHE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
 #else
 #define JFFS2_DBG_INOCACHE(fmt, ...)
 #endif

 /* "Paranoia" checks */
 void
 __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f);
 void
 __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f);
 void
 __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
 			   	struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
 				       struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
 				    uint32_t ofs, int len);

 /* "Dump" functions */
 void
 __jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c);
 void
 __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c);
 void
 __jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
 		 	   struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
 				  struct jffs2_eraseblock *jeb);
 void
 __jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f);
 void
 __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f);
 void
 __jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs);
 void
 __jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs);

 #ifdef JFFS2_DBG_PARANOIA_CHECKS
 #define jffs2_dbg_fragtree_paranoia_check(f)			\
 	__jffs2_dbg_fragtree_paranoia_check(f)
 #define jffs2_dbg_fragtree_paranoia_check_nolock(f)		\
 	__jffs2_dbg_fragtree_paranoia_check_nolock(f)
 #define jffs2_dbg_acct_paranoia_check(c, jeb)			\
 	__jffs2_dbg_acct_paranoia_check(c,jeb)
 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)		\
 	__jffs2_dbg_acct_paranoia_check_nolock(c,jeb)
 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)		\
 	__jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
 #else
 #define jffs2_dbg_fragtree_paranoia_check(f)
 #define jffs2_dbg_fragtree_paranoia_check_nolock(f)
 #define jffs2_dbg_acct_paranoia_check(c, jeb)
 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)
 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
 #endif /* !JFFS2_PARANOIA_CHECKS */

 #ifdef JFFS2_DBG_DUMPS
 #define jffs2_dbg_dump_jeb(c, jeb)				\
 	__jffs2_dbg_dump_jeb(c, jeb);
 #define jffs2_dbg_dump_jeb_nolock(jeb)				\
 	__jffs2_dbg_dump_jeb_nolock(jeb);
 #define jffs2_dbg_dump_block_lists(c)				\
 	__jffs2_dbg_dump_block_lists(c)
 #define jffs2_dbg_dump_block_lists_nolock(c)			\
 	__jffs2_dbg_dump_block_lists_nolock(c)
 #define jffs2_dbg_dump_fragtree(f)				\
 	__jffs2_dbg_dump_fragtree(f);
 #define jffs2_dbg_dump_fragtree_nolock(f)			\
 	__jffs2_dbg_dump_fragtree_nolock(f);
 #define jffs2_dbg_dump_buffer(buf, len, offs)			\
 	__jffs2_dbg_dump_buffer(*buf, len, offs);
 #define jffs2_dbg_dump_node(c, ofs)				\
 	__jffs2_dbg_dump_node(c, ofs);
 #else
 #define jffs2_dbg_dump_jeb(c, jeb)
 #define jffs2_dbg_dump_jeb_nolock(jeb)
 #define jffs2_dbg_dump_block_lists(c)
 #define jffs2_dbg_dump_block_lists_nolock(c)
 #define jffs2_dbg_dump_fragtree(f)
 #define jffs2_dbg_dump_fragtree_nolock(f)
 #define jffs2_dbg_dump_buffer(buf, len, offs)
 #define jffs2_dbg_dump_node(c, ofs)
 #endif /* !JFFS2_DBG_DUMPS */

 /*
  * Sanity checks are supposed to be light-weight and enabled by default.
  */
 #ifdef JFFS2_DBG_SANITY_CHECKS
 /*
  * Check the space accounting of the file system and of
  * the JFFS2 erasable block 'jeb'.
  */
 static inline void
 jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
 				   struct jffs2_eraseblock *jeb)
 {
 	if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
 			jeb->free_size + jeb->wasted_size +
 			jeb->unchecked_size != c->sector_size)) {
 		JFFS2_ERROR("eeep, space accounting for block at 0x%08x is screwed.\n", jeb->offset);
 		JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked "
 			"%#08x != total %#08x.\n", jeb->free_size, jeb->dirty_size, jeb->used_size,
 			jeb->wasted_size, jeb->unchecked_size, c->sector_size);
 		BUG();
 	}

 	if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
 				+ c->wasted_size + c->unchecked_size != c->flash_size)) {
 		JFFS2_ERROR("eeep, space accounting superblock info is screwed.\n");
 		JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + "
 			"wasted %#08x + unchecked %#08x != total %#08x.\n",
 			c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
 			c->wasted_size, c->unchecked_size, c->flash_size);
 		BUG();
 	}
 }

 static inline void
 jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
 			    struct jffs2_eraseblock *jeb)
 {
 	spin_lock(&c->erase_completion_lock);
 	jffs2_dbg_acct_sanity_check_nolock(c, jeb);
 	spin_unlock(&c->erase_completion_lock);
 }
 #else
 #define jffs2_dbg_acct_sanity_check(c, jeb)
 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb)
 #endif /* !JFFS2_DBG_SANITY_CHECKS */

 #endif /* _JFFS2_DEBUG_H_ */
	/*
	* JFFS2 -- Journalling Flash File System, Version 2.
	*
	* Copyright (C) 2001-2003 Red Hat, Inc.
	*
	* Created by David Woodhouse <dwmw2@infradead.org>
	*
	* For licensing information, see the file 'LICENCE' in this directory.
	*
	* $Id: debug.h,v 1.5 2005/07/24 15:14:14 dedekind Exp $
	*
	*/
	#ifndef _JFFS2_DEBUG_H_
	#define _JFFS2_DEBUG_H_

	#include <linux/config.h>

	/* ------------------------------------------------ */
	/* TODO: remove */
	#undef CONFIG_JFFS2_FS_DEBUG
	#define CONFIG_JFFS2_FS_DEBUG 0
	//#define JFFS2_DBG_PARANOIA_CHECKS
	//#define JFFS2_DBG_DUMPS
	#define JFFS2_DBG_READINODE_MESSAGES
	//#define JFFS2_DBG_FRAGTREE_MESSAGES
	//#define JFFS2_DBG_FRAGTREE2_MESSAGES
	#undef KERN_DEBUG
	#undef KERN_WARNING
	#undef KERN_NOTICE
	#undef KERN_ERR
	#define KERN_DEBUG KERN_CRIT
	#define KERN_WARNING KERN_CRIT
	#define KERN_NOTICE KERN_CRIT
	#define KERN_ERR KERN_CRIT
	/* ------------------------------------------------ */

	#ifndef CONFIG_JFFS2_FS_DEBUG
	#define CONFIG_JFFS2_FS_DEBUG 1
	#endif

	#if CONFIG_JFFS2_FS_DEBUG == 1
	/* Enable "paranoia" checks and dumps */
	#define JFFS2_DBG_PARANOIA_CHECKS
	#define JFFS2_DBG_DUMPS
	#define JFFS2_DBG_READINODE_MESSAGES
	#define JFFS2_DBG_FRAGTREE_MESSAGES
	#define JFFS2_DBG_DENTLIST_MESSAGES
	#define JFFS2_DBG_NODEREF_MESSAGES
	#define JFFS2_DBG_INOCACHE_MESSAGES
	#endif

	#if CONFIG_JFFS2_FS_DEBUG == 2
	#define JFFS2_DBG_FRAGTREE2_MESSAGES
	#endif

	/* Enable JFFS2 sanity checks by default */
	#define JFFS2_DBG_SANITY_CHECKS

	/*
	* Dx() are mainly used for debugging messages, they must go away and be
	* superseded by nicer JFFS2_DBG_XXX() macros...
	*/
	#if CONFIG_JFFS2_FS_DEBUG > 0
	#define D1(x) x
	#else
	#define D1(x)
	#endif

	#if CONFIG_JFFS2_FS_DEBUG > 1
	#define D2(x) x
	#else
	#define D2(x)
	#endif

	/* The prefixes of JFFS2 messages */
	#define JFFS2_DBG_MSG_PREFIX "[JFFS2 DBG]"
	#define JFFS2_ERR_MSG_PREFIX "JFFS2 error: "
	#define JFFS2_WARN_MSG_PREFIX "JFFS2 warning: "
	#define JFFS2_NOTICE_MSG_PREFIX "JFFS2 notice: "

	#define JFFS2_ERR_LVL KERN_ERR
	#define JFFS2_WARN_LVL KERN_WARNING
	#define JFFS2_NOTICE_LVL KERN_NOTICE
	#define JFFS2_DBG_LVL KERN_DEBUG

	/* JFFS2 message macros */
	#define JFFS2_ERROR(fmt, ...) \
	do { \
	printk(JFFS2_ERR_LVL JFFS2_ERR_MSG_PREFIX " %s: " \
	fmt, __FUNCTION__, ##__VA_ARGS__); \
	} while(0)

	#define JFFS2_WARNING(fmt, ...) \
	do { \
	printk(JFFS2_WARN_LVL JFFS2_WARN_MSG_PREFIX " %s: " \
	fmt, __FUNCTION__, ##__VA_ARGS__); \
	} while(0)

	#define JFFS2_NOTICE(fmt, ...) \
	do { \
	printk(JFFS2_NOTICE_LVL JFFS2_NOTICE_MSG_PREFIX " %s: " \
	fmt, __FUNCTION__, ##__VA_ARGS__); \
	} while(0)

	#define JFFS2_DEBUG(fmt, ...) \
	do { \
	printk(JFFS2_DBG_LVL JFFS2_DBG_MSG_PREFIX " %s: " \
	fmt, __FUNCTION__, ##__VA_ARGS__); \
	} while(0)

	/*
	* We split our debugging messages on several parts, depending on the JFFS2
	* subsystem the message belongs to.
	*/
	/* Read inode debugging messages */
	#ifdef JFFS2_DBG_READINODE_MESSAGES
	#define JFFS2_DBG_READINODE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_READINODE(fmt, ...)
	#endif

	/* Fragtree build debugging messages */
	#ifdef JFFS2_DBG_FRAGTREE_MESSAGES
	#define JFFS2_DBG_FRAGTREE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_FRAGTREE(fmt, ...)
	#endif

	/* Directory entry list manilulation debugging messages */
	#ifdef JFFS2_DBG_DENTLIST_MESSAGES
	#define JFFS2_DBG_DENTLIST(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_DENTLIST(fmt, ...)
	#endif
	#ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
	#define JFFS2_DBG_FRAGTREE2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_FRAGTREE2(fmt, ...)
	#endif

	/* Plays with node_refs */
	#ifdef JFFS2_DBG_NODEREF_MESSAGES
	#define JFFS2_DBG_NODEREF(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_NODEREF(fmt, ...)
	#endif

	/* Plays with the list of inodes (JFFS2 inocache) */
	#ifdef JFFS2_DBG_INOCACHE_MESSAGES
	#define JFFS2_DBG_INOCACHE(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
	#else
	#define JFFS2_DBG_INOCACHE(fmt, ...)
	#endif

	/* "Paranoia" checks */
	void
	__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f);
	void
	__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f);
	void
	__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb);
	void
	__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb);
	void
	__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
	uint32_t ofs, int len);

	/* "Dump" functions */
	void
	__jffs2_dbg_dump_jeb(struct jffs2_sb_info c, struct jffs2_eraseblock jeb);
	void
	__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb);
	void
	__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c);
	void
	__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c);
	void
	__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb);
	void
	__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb);
	void
	__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f);
	void
	__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f);
	void
	__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs);
	void
	__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs);

	#ifdef JFFS2_DBG_PARANOIA_CHECKS
	#define jffs2_dbg_fragtree_paranoia_check(f) \
	__jffs2_dbg_fragtree_paranoia_check(f)
	#define jffs2_dbg_fragtree_paranoia_check_nolock(f) \
	__jffs2_dbg_fragtree_paranoia_check_nolock(f)
	#define jffs2_dbg_acct_paranoia_check(c, jeb) \
	__jffs2_dbg_acct_paranoia_check(c,jeb)
	#define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \
	__jffs2_dbg_acct_paranoia_check_nolock(c,jeb)
	#define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \
	__jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
	#else
	#define jffs2_dbg_fragtree_paranoia_check(f)
	#define jffs2_dbg_fragtree_paranoia_check_nolock(f)
	#define jffs2_dbg_acct_paranoia_check(c, jeb)
	#define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)
	#define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
	#endif /* !JFFS2_PARANOIA_CHECKS */

	#ifdef JFFS2_DBG_DUMPS
	#define jffs2_dbg_dump_jeb(c, jeb) \
	__jffs2_dbg_dump_jeb(c, jeb);
	#define jffs2_dbg_dump_jeb_nolock(jeb) \
	__jffs2_dbg_dump_jeb_nolock(jeb);
	#define jffs2_dbg_dump_block_lists(c) \
	__jffs2_dbg_dump_block_lists(c)
	#define jffs2_dbg_dump_block_lists_nolock(c) \
	__jffs2_dbg_dump_block_lists_nolock(c)
	#define jffs2_dbg_dump_fragtree(f) \
	__jffs2_dbg_dump_fragtree(f);
	#define jffs2_dbg_dump_fragtree_nolock(f) \
	__jffs2_dbg_dump_fragtree_nolock(f);
	#define jffs2_dbg_dump_buffer(buf, len, offs) \
	__jffs2_dbg_dump_buffer(*buf, len, offs);
	#define jffs2_dbg_dump_node(c, ofs) \
	__jffs2_dbg_dump_node(c, ofs);
	#else
	#define jffs2_dbg_dump_jeb(c, jeb)
	#define jffs2_dbg_dump_jeb_nolock(jeb)
	#define jffs2_dbg_dump_block_lists(c)
	#define jffs2_dbg_dump_block_lists_nolock(c)
	#define jffs2_dbg_dump_fragtree(f)
	#define jffs2_dbg_dump_fragtree_nolock(f)
	#define jffs2_dbg_dump_buffer(buf, len, offs)
	#define jffs2_dbg_dump_node(c, ofs)
	#endif /* !JFFS2_DBG_DUMPS */

	/*
	* Sanity checks are supposed to be light-weight and enabled by default.
	*/
	#ifdef JFFS2_DBG_SANITY_CHECKS
	/*
	* Check the space accounting of the file system and of
	* the JFFS2 erasable block 'jeb'.
	*/
	static inline void
	jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb)
	{
	if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
	jeb->free_size + jeb->wasted_size +
	jeb->unchecked_size != c->sector_size)) {
	JFFS2_ERROR("eeep, space accounting for block at 0x%08x is screwed.\n", jeb->offset);
	JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked "
	"%#08x != total %#08x.\n", jeb->free_size, jeb->dirty_size, jeb->used_size,
	jeb->wasted_size, jeb->unchecked_size, c->sector_size);
	BUG();
	}

	if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
	+ c->wasted_size + c->unchecked_size != c->flash_size)) {
	JFFS2_ERROR("eeep, space accounting superblock info is screwed.\n");
	JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + "
	"wasted %#08x + unchecked %#08x != total %#08x.\n",
	c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
	c->wasted_size, c->unchecked_size, c->flash_size);
	BUG();
	}
	}

	static inline void
	jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
	struct jffs2_eraseblock *jeb)
	{
	spin_lock(&c->erase_completion_lock);
	jffs2_dbg_acct_sanity_check_nolock(c, jeb);
	spin_unlock(&c->erase_completion_lock);
	}
	#else
	#define jffs2_dbg_acct_sanity_check(c, jeb)
	#define jffs2_dbg_acct_sanity_check_nolock(c, jeb)
	#endif /* !JFFS2_DBG_SANITY_CHECKS */

	#endif /* _JFFS2_DEBUG_H_ */