| /* |
| * 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/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| * superseded by nicer dbg_xxx() macros...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, ...) |
| #endif |
| #ifdef JFFS2_DBG_READINODE2_MESSAGES |
| #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_readinode2(fmt, ...) |
| #endif |
| |
| /* Fragtree build debugging messages */ |
| #ifdef JFFS2_DBG_FRAGTREE_MESSAGES |
| #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_fragtree(fmt, ...) |
| #endif |
| #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES |
| #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_fragtree2(fmt, ...) |
| #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, ...) |
| #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, ...) |
| #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, ...) |
| #endif |
| |
| /* Summary debugging messages */ |
| #ifdef JFFS2_DBG_SUMMARY_MESSAGES |
| #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_summary(fmt, ...) |
| #endif |
| |
| /* File system build messages */ |
| #ifdef JFFS2_DBG_FSBUILD_MESSAGES |
| #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_fsbuild(fmt, ...) |
| #endif |
| |
| /* Watch the object allocations */ |
| #ifdef JFFS2_DBG_MEMALLOC_MESSAGES |
| #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_memalloc(fmt, ...) |
| #endif |
| |
| /* Watch the XATTR subsystem */ |
| #ifdef JFFS2_DBG_XATTR_MESSAGES |
| #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) |
| #else |
| #define dbg_xattr(fmt, ...) |
| #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_ */ |