/* * JFFS2 -- Journalling Flash File System, Version 2. * * Copyright © 2001-2007 Red Hat, Inc. * Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org> * * Created by David Woodhouse <dwmw2@infradead.org> * * For licensing information, see the file 'LICENCE' in this directory. * */ #ifndef _JFFS2_DEBUG_H_#define _JFFS2_DEBUG_H_ #include <linux/printk.h>#include <linux/sched.h> #ifndef CONFIG_JFFS2_FS_DEBUG#define CONFIG_JFFS2_FS_DEBUG 0#endif #if CONFIG_JFFS2_FS_DEBUG > 0/* Enable "paranoia" checks and dumps */#define JFFS2_DBG_PARANOIA_CHECKS#define JFFS2_DBG_DUMPS /* * By defining/undefining the below macros one may select debugging messages * fro specific JFFS2 subsystems. */#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#define JFFS2_DBG_SUMMARY_MESSAGES#define JFFS2_DBG_FSBUILD_MESSAGES#endif #if CONFIG_JFFS2_FS_DEBUG > 1#define JFFS2_DBG_FRAGTREE2_MESSAGES#define JFFS2_DBG_READINODE2_MESSAGES#define JFFS2_DBG_MEMALLOC_MESSAGES#endif /* Sanity checks are supposed to be light-weight and enabled by default */#define JFFS2_DBG_SANITY_CHECKS /* * Dx() are mainly used for debugging messages, they must go away and be * superseded by nicer dbg_xxx() macros... */#if CONFIG_JFFS2_FS_DEBUG > 0#define DEBUG#define D1(x) x#else#define D1(x)#endif #if CONFIG_JFFS2_FS_DEBUG > 1#define D2(x) x#else#define D2(x)#endif #define jffs2_dbg(level, fmt, ...)		\do {						\	if (CONFIG_JFFS2_FS_DEBUG >= level)	\		pr_debug(fmt, ##__VA_ARGS__);	\} while (0) /* The prefixes of JFFS2 messages */#define JFFS2_DBG		KERN_DEBUG#define JFFS2_DBG_PREFIX	"[JFFS2 DBG]"#define JFFS2_DBG_MSG_PREFIX	JFFS2_DBG JFFS2_DBG_PREFIX /* JFFS2 message macros */#define JFFS2_ERROR(fmt, ...)					\	pr_err("error: (%d) %s: " fmt,				\	       task_pid_nr(current), __func__, ##__VA_ARGS__) #define JFFS2_WARNING(fmt, ...)						\	pr_warn("warning: (%d) %s: " fmt,				\		task_pid_nr(current), __func__, ##__VA_ARGS__) #define JFFS2_NOTICE(fmt, ...)						\	pr_notice("notice: (%d) %s: " fmt,				\		  task_pid_nr(current), __func__, ##__VA_ARGS__) #define JFFS2_DEBUG(fmt, ...)						\	printk(KERN_DEBUG "[JFFS2 DBG] (%d) %s: " fmt,			\	       task_pid_nr(current), __func__, ##__VA_ARGS__) /* * 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 dbg_readinode(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_readinode(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif#ifdef JFFS2_DBG_READINODE2_MESSAGES#define dbg_readinode2(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_readinode2(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Fragtree build debugging messages */#ifdef JFFS2_DBG_FRAGTREE_MESSAGES#define dbg_fragtree(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_fragtree(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif#ifdef JFFS2_DBG_FRAGTREE2_MESSAGES#define dbg_fragtree2(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_fragtree2(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Directory entry list manilulation debugging messages */#ifdef JFFS2_DBG_DENTLIST_MESSAGES#define dbg_dentlist(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_dentlist(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Print the messages about manipulating node_refs */#ifdef JFFS2_DBG_NODEREF_MESSAGES#define dbg_noderef(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_noderef(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Manipulations with the list of inodes (JFFS2 inocache) */#ifdef JFFS2_DBG_INOCACHE_MESSAGES#define dbg_inocache(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_inocache(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Summary debugging messages */#ifdef JFFS2_DBG_SUMMARY_MESSAGES#define dbg_summary(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_summary(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* File system build messages */#ifdef JFFS2_DBG_FSBUILD_MESSAGES#define dbg_fsbuild(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_fsbuild(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Watch the object allocations */#ifdef JFFS2_DBG_MEMALLOC_MESSAGES#define dbg_memalloc(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_memalloc(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)#endif /* Watch the XATTR subsystem */#ifdef JFFS2_DBG_XATTR_MESSAGES#define dbg_xattr(fmt, ...)  JFFS2_DEBUG(fmt, ##__VA_ARGS__)#else#define dbg_xattr(fmt, ...)  no_printk(fmt, ##__VA_ARGS__)#endif  /* "Sanity" checks */void__jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,				     struct jffs2_eraseblock *jeb);void__jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,			      struct jffs2_eraseblock *jeb); /* "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 */ #ifdef JFFS2_DBG_SANITY_CHECKS#define jffs2_dbg_acct_sanity_check(c, jeb)			\	__jffs2_dbg_acct_sanity_check(c, jeb)#define jffs2_dbg_acct_sanity_check_nolock(c, jeb)		\	__jffs2_dbg_acct_sanity_check_nolock(c, jeb)#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_ */