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- /*
- * 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 1.1 2005/07/30 15:30:42 asl Exp $
- *
- */
- #ifndef _JFFS2_DEBUG_H_
- #define _JFFS2_DEBUG_H_
- #include "jffs2_config.h"
- #include <linux/config.h>
- #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- * superseded by nicer JFFS2_DBG_XXX() macros...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
- /* 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
- /* 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_ */
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