diff options
Diffstat (limited to 'fs/jffs2/debug.h')
| -rw-r--r-- | fs/jffs2/debug.h | 251 |
1 files changed, 217 insertions, 34 deletions
diff --git a/fs/jffs2/debug.h b/fs/jffs2/debug.h index 7d14f7b01397..51ff099a6502 100644 --- a/fs/jffs2/debug.h +++ b/fs/jffs2/debug.h @@ -7,7 +7,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: debug.h,v 1.1 2005/07/17 06:56:20 dedekind Exp $ + * $Id: debug.h,v 1.5 2005/07/24 15:14:14 dedekind Exp $ * */ #ifndef _JFFS2_DEBUG_H_ @@ -15,12 +15,52 @@ #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 > 0 +#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*/ +#define JFFS2_DBG_SANITY_CHECKS + +/* + * Dx() are mainly used for debugging messages, they must go away and be + * superseded by nicer JFFS2_DBG_XXX() macros...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) @@ -32,73 +72,216 @@ #define D2(x) #endif -/* Enable JFFS2 sanity checks */ -#define JFFS2_DBG_SANITY_CHECKS +/* 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: " -#if CONFIG_JFFS2_FS_DEBUG > 0 -void -jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c); +#define JFFS2_ERR_LVL KERN_ERR +#define JFFS2_WARN_LVL KERN_WARNING +#define JFFS2_NOTICE_LVL KERN_NOTICE +#define JFFS2_DBG_LVL KERN_DEBUG -void -jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); +/* JFFS2 message macros */ +#define JFFS2_ERROR(fmt, ...) \ + do { \ + printk(JFFS2_ERR_LVL JFFS2_ERR_MSG_PREFIX " %s: " \ + fmt, __FUNCTION__, ##__VA_ARGS__); \ + } while(0) -void -jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f); +#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) -void -jffs2_dbg_dump_buffer(char *buf, int len, uint32_t offs); +#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 -#ifdef JFFS2_DBG_PARANOIA_CHECKS -void -jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f); +/* 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_acct_paranoia_check(struct jffs2_sb_info *c, - struct jffs2_eraseblock *jeb); +__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_prewrite_paranoia_check(struct jffs2_sb_info *c, - uint32_t ofs, int len); +__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 JFFS3 erasable block 'jeb'. + * the JFFS2 erasable block 'jeb'. */ static inline void -jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c, - struct jffs2_eraseblock *jeb) +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)) { - printk(KERN_ERR "Eeep. Space accounting for block at 0x%08x is screwed\n", jeb->offset); - printk(KERN_ERR "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); + 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)) { - printk(KERN_ERR "Eeep. Space accounting superblock info is screwed\n"); - printk(KERN_ERR "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); + 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(); } } -#else + static inline void jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c, - struct jffs2_eraseblock *jeb); + 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_ */ |