/* * JFFS2 -- Journalling Flash File System, Version 2. * * Copyright (C) 2001-2003 Red Hat, Inc. * * Created by David Woodhouse * * For licensing information, see the file 'LICENCE' in this directory. * * $Id: debug.h,v 1.10 2005/08/02 10:03:51 dedekind Exp $ * */ #ifndef _JFFS2_DEBUG_H_ #define _JFFS2_DEBUG_H_ #include #ifndef CONFIG_JFFS2_FS_DEBUG #define CONFIG_JFFS2_FS_DEBUG 0 #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default */ #define JFFS2_DBG_SANITY_CHECKS /* * Dx() are mainly used for debugging messages, they must go away and be * superseded by nicer JFFS2_DBG_XXX() macros...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 #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES #define JFFS2_DBG_FRAGTREE2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) #else #define JFFS2_DBG_FRAGTREE2(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 /* Print the messages about manipulating node_refs */ #ifdef JFFS2_DBG_NODEREF_MESSAGES #define JFFS2_DBG_NODEREF(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) #else #define JFFS2_DBG_NODEREF(fmt, ...) #endif /* Manipulations 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 /* Watch the object allocations */ #ifdef JFFS2_DBG_MEMALLOC_MESSAGES #define JFFS2_DBG_MEMALLOC(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) #else #define JFFS2_DBG_MEMALLOC(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_ */