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fs/ubifs/debug.h
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/* * This file is part of UBIFS. * * Copyright (C) 2006-2008 Nokia Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., 51 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * Authors: Artem Bityutskiy (Битюцкий Артём) * Adrian Hunter */ #ifndef __UBIFS_DEBUG_H__ #define __UBIFS_DEBUG_H__ |
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/* Checking helper functions */ typedef int (*dbg_leaf_callback)(struct ubifs_info *c, struct ubifs_zbranch *zbr, void *priv); typedef int (*dbg_znode_callback)(struct ubifs_info *c, struct ubifs_znode *znode, void *priv); |
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#ifdef CONFIG_UBIFS_FS_DEBUG |
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/* * The UBIFS debugfs directory name pattern and maximum name length (3 for "ubi" * + 1 for "_" and plus 2x2 for 2 UBI numbers and 1 for the trailing zero byte. */ #define UBIFS_DFS_DIR_NAME "ubi%d_%d" #define UBIFS_DFS_DIR_LEN (3 + 1 + 2*2 + 1) |
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/** * ubifs_debug_info - per-FS debugging information. |
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* @old_zroot: old index root - used by 'dbg_check_old_index()' * @old_zroot_level: old index root level - used by 'dbg_check_old_index()' * @old_zroot_sqnum: old index root sqnum - used by 'dbg_check_old_index()' |
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* |
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* @pc_happened: non-zero if an emulated power cut happened * @pc_delay: 0=>don't delay, 1=>delay a time, 2=>delay a number of calls * @pc_timeout: time in jiffies when delay of failure mode expires * @pc_cnt: current number of calls to failure mode I/O functions * @pc_cnt_max: number of calls by which to delay failure mode |
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* |
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* @chk_lpt_sz: used by LPT tree size checker * @chk_lpt_sz2: used by LPT tree size checker * @chk_lpt_wastage: used by LPT tree size checker * @chk_lpt_lebs: used by LPT tree size checker * @new_nhead_offs: used by LPT tree size checker |
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* @new_ihead_lnum: used by debugging to check @c->ihead_lnum * @new_ihead_offs: used by debugging to check @c->ihead_offs |
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* |
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* @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()') |
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* @saved_bi: saved budgeting information * @saved_free: saved amount of free space * @saved_idx_gc_cnt: saved value of @c->idx_gc_cnt |
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* |
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* @chk_gen: if general extra checks are enabled * @chk_index: if index xtra checks are enabled * @chk_orph: if orphans extra checks are enabled * @chk_lprops: if lprops extra checks are enabled * @chk_fs: if UBIFS contents extra checks are enabled * @tst_rcvry: if UBIFS recovery testing mode enabled * |
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* @dfs_dir_name: name of debugfs directory containing this file-system's files * @dfs_dir: direntry object of the file-system debugfs directory * @dfs_dump_lprops: "dump lprops" debugfs knob * @dfs_dump_budg: "dump budgeting information" debugfs knob * @dfs_dump_tnc: "dump TNC" debugfs knob |
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* @dfs_chk_gen: debugfs knob to enable UBIFS general extra checks * @dfs_chk_index: debugfs knob to enable UBIFS index extra checks * @dfs_chk_orph: debugfs knob to enable UBIFS orphans extra checks * @dfs_chk_lprops: debugfs knob to enable UBIFS LEP properties extra checks * @dfs_chk_fs: debugfs knob to enable UBIFS contents extra checks * @dfs_tst_rcvry: debugfs knob to enable UBIFS recovery testing |
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*/ struct ubifs_debug_info { |
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struct ubifs_zbranch old_zroot; int old_zroot_level; unsigned long long old_zroot_sqnum; |
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int pc_happened; int pc_delay; unsigned long pc_timeout; unsigned int pc_cnt; unsigned int pc_cnt_max; |
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long long chk_lpt_sz; long long chk_lpt_sz2; long long chk_lpt_wastage; int chk_lpt_lebs; int new_nhead_offs; int new_ihead_lnum; int new_ihead_offs; |
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struct ubifs_lp_stats saved_lst; |
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struct ubifs_budg_info saved_bi; |
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long long saved_free; |
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int saved_idx_gc_cnt; |
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unsigned int chk_gen:1; unsigned int chk_index:1; unsigned int chk_orph:1; unsigned int chk_lprops:1; unsigned int chk_fs:1; unsigned int tst_rcvry:1; |
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char dfs_dir_name[UBIFS_DFS_DIR_LEN + 1]; |
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struct dentry *dfs_dir; struct dentry *dfs_dump_lprops; struct dentry *dfs_dump_budg; struct dentry *dfs_dump_tnc; |
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struct dentry *dfs_chk_gen; struct dentry *dfs_chk_index; struct dentry *dfs_chk_orph; struct dentry *dfs_chk_lprops; struct dentry *dfs_chk_fs; struct dentry *dfs_tst_rcvry; |
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}; |
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/** * ubifs_global_debug_info - global (not per-FS) UBIFS debugging information. * * @chk_gen: if general extra checks are enabled * @chk_index: if index xtra checks are enabled * @chk_orph: if orphans extra checks are enabled * @chk_lprops: if lprops extra checks are enabled * @chk_fs: if UBIFS contents extra checks are enabled * @tst_rcvry: if UBIFS recovery testing mode enabled */ struct ubifs_global_debug_info { unsigned int chk_gen:1; unsigned int chk_index:1; unsigned int chk_orph:1; unsigned int chk_lprops:1; unsigned int chk_fs:1; unsigned int tst_rcvry:1; }; |
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#define ubifs_assert(expr) do { \ |
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if (unlikely(!(expr))) { \ printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d) ", \ __func__, __LINE__, current->pid); \ dbg_dump_stack(); \ } \ } while (0) #define ubifs_assert_cmt_locked(c) do { \ if (unlikely(down_write_trylock(&(c)->commit_sem))) { \ up_write(&(c)->commit_sem); \ printk(KERN_CRIT "commit lock is not locked! "); \ ubifs_assert(0); \ } \ } while (0) |
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#define dbg_dump_stack() dump_stack() |
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#define dbg_err(fmt, ...) do { \ spin_lock(&dbg_lock); \ ubifs_err(fmt, ##__VA_ARGS__); \ spin_unlock(&dbg_lock); \ } while (0) |
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#define ubifs_dbg_msg(type, fmt, ...) \ pr_debug("UBIFS DBG " type ": " fmt " ", ##__VA_ARGS__) |
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#define DBG_KEY_BUF_LEN 32 #define ubifs_dbg_msg_key(type, key, fmt, ...) do { \ char __tmp_key_buf[DBG_KEY_BUF_LEN]; \ pr_debug("UBIFS DBG " type ": " fmt "%s ", ##__VA_ARGS__, \ dbg_snprintf_key(c, key, __tmp_key_buf, DBG_KEY_BUF_LEN)); \ } while (0) |
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/* Just a debugging messages not related to any specific UBIFS subsystem */ |
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#define dbg_msg(fmt, ...) \ printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt " ", current->pid, \ |
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__func__, ##__VA_ARGS__) |
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/* General messages */ #define dbg_gen(fmt, ...) ubifs_dbg_msg("gen", fmt, ##__VA_ARGS__) |
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/* Additional journal messages */ |
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#define dbg_jnl(fmt, ...) ubifs_dbg_msg("jnl", fmt, ##__VA_ARGS__) |
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#define dbg_jnlk(key, fmt, ...) \ ubifs_dbg_msg_key("jnl", key, fmt, ##__VA_ARGS__) |
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/* Additional TNC messages */ |
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#define dbg_tnc(fmt, ...) ubifs_dbg_msg("tnc", fmt, ##__VA_ARGS__) |
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#define dbg_tnck(key, fmt, ...) \ ubifs_dbg_msg_key("tnc", key, fmt, ##__VA_ARGS__) |
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/* Additional lprops messages */ |
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#define dbg_lp(fmt, ...) ubifs_dbg_msg("lp", fmt, ##__VA_ARGS__) |
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/* Additional LEB find messages */ |
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#define dbg_find(fmt, ...) ubifs_dbg_msg("find", fmt, ##__VA_ARGS__) |
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/* Additional mount messages */ |
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#define dbg_mnt(fmt, ...) ubifs_dbg_msg("mnt", fmt, ##__VA_ARGS__) |
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#define dbg_mntk(key, fmt, ...) \ ubifs_dbg_msg_key("mnt", key, fmt, ##__VA_ARGS__) |
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/* Additional I/O messages */ |
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#define dbg_io(fmt, ...) ubifs_dbg_msg("io", fmt, ##__VA_ARGS__) |
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/* Additional commit messages */ |
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#define dbg_cmt(fmt, ...) ubifs_dbg_msg("cmt", fmt, ##__VA_ARGS__) |
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/* Additional budgeting messages */ |
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#define dbg_budg(fmt, ...) ubifs_dbg_msg("budg", fmt, ##__VA_ARGS__) |
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/* Additional log messages */ |
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#define dbg_log(fmt, ...) ubifs_dbg_msg("log", fmt, ##__VA_ARGS__) |
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/* Additional gc messages */ |
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#define dbg_gc(fmt, ...) ubifs_dbg_msg("gc", fmt, ##__VA_ARGS__) |
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/* Additional scan messages */ |
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#define dbg_scan(fmt, ...) ubifs_dbg_msg("scan", fmt, ##__VA_ARGS__) |
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/* Additional recovery messages */ |
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#define dbg_rcvry(fmt, ...) ubifs_dbg_msg("rcvry", fmt, ##__VA_ARGS__) |
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extern spinlock_t dbg_lock; |
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extern struct ubifs_global_debug_info ubifs_dbg; |
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static inline int dbg_is_chk_gen(const struct ubifs_info *c) { |
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return !!(ubifs_dbg.chk_gen || c->dbg->chk_gen); |
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} |
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static inline int dbg_is_chk_index(const struct ubifs_info *c) |
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{ |
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return !!(ubifs_dbg.chk_index || c->dbg->chk_index); |
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} static inline int dbg_is_chk_orph(const struct ubifs_info *c) { |
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return !!(ubifs_dbg.chk_orph || c->dbg->chk_orph); |
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} |
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static inline int dbg_is_chk_lprops(const struct ubifs_info *c) { |
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return !!(ubifs_dbg.chk_lprops || c->dbg->chk_lprops); |
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} static inline int dbg_is_chk_fs(const struct ubifs_info *c) { |
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return !!(ubifs_dbg.chk_fs || c->dbg->chk_fs); |
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} static inline int dbg_is_tst_rcvry(const struct ubifs_info *c) { |
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return !!(ubifs_dbg.tst_rcvry || c->dbg->tst_rcvry); |
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} |
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static inline int dbg_is_power_cut(const struct ubifs_info *c) { |
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return !!c->dbg->pc_happened; |
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} |
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int ubifs_debugging_init(struct ubifs_info *c); void ubifs_debugging_exit(struct ubifs_info *c); |
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/* Dump functions */ |
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const char *dbg_ntype(int type); const char *dbg_cstate(int cmt_state); |
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const char *dbg_jhead(int jhead); |
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const char *dbg_get_key_dump(const struct ubifs_info *c, const union ubifs_key *key); |
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const char *dbg_snprintf_key(const struct ubifs_info *c, const union ubifs_key *key, char *buffer, int len); |
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void dbg_dump_inode(struct ubifs_info *c, const struct inode *inode); |
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void dbg_dump_node(const struct ubifs_info *c, const void *node); |
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void dbg_dump_lpt_node(const struct ubifs_info *c, void *node, int lnum, int offs); |
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void dbg_dump_budget_req(const struct ubifs_budget_req *req); void dbg_dump_lstats(const struct ubifs_lp_stats *lst); |
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void dbg_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi); |
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void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp); void dbg_dump_lprops(struct ubifs_info *c); |
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void dbg_dump_lpt_info(struct ubifs_info *c); |
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void dbg_dump_leb(const struct ubifs_info *c, int lnum); |
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void dbg_dump_sleb(const struct ubifs_info *c, const struct ubifs_scan_leb *sleb, int offs); |
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void dbg_dump_znode(const struct ubifs_info *c, const struct ubifs_znode *znode); void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat); void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode, struct ubifs_nnode *parent, int iip); void dbg_dump_tnc(struct ubifs_info *c); void dbg_dump_index(struct ubifs_info *c); |
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void dbg_dump_lpt_lebs(const struct ubifs_info *c); |
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int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb, dbg_znode_callback znode_cb, void *priv); /* Checking functions */ |
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void dbg_save_space_info(struct ubifs_info *c); int dbg_check_space_info(struct ubifs_info *c); |
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int dbg_check_lprops(struct ubifs_info *c); |
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int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot); int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot); |
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int dbg_check_cats(struct ubifs_info *c); |
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int dbg_check_ltab(struct ubifs_info *c); |
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int dbg_chk_lpt_free_spc(struct ubifs_info *c); int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len); |
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int dbg_check_synced_i_size(const struct ubifs_info *c, struct inode *inode); |
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int dbg_check_dir(struct ubifs_info *c, const struct inode *dir); |
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int dbg_check_tnc(struct ubifs_info *c, int extra); |
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int dbg_check_idx_size(struct ubifs_info *c, long long idx_size); |
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int dbg_check_filesystem(struct ubifs_info *c); |
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void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat, int add_pos); |
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int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode, int row, int col); |
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int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode, loff_t size); |
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int dbg_check_data_nodes_order(struct ubifs_info *c, struct list_head *head); int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head); |
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int dbg_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs, int len, int dtype); int dbg_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len, int dtype); int dbg_leb_unmap(struct ubifs_info *c, int lnum); int dbg_leb_map(struct ubifs_info *c, int lnum, int dtype); |
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/* Debugfs-related stuff */ int dbg_debugfs_init(void); void dbg_debugfs_exit(void); int dbg_debugfs_init_fs(struct ubifs_info *c); void dbg_debugfs_exit_fs(struct ubifs_info *c); |
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#else /* !CONFIG_UBIFS_FS_DEBUG */ |
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/* Use "if (0)" to make compiler check arguments even if debugging is off */ #define ubifs_assert(expr) do { \ |
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if (0) \ |
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printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d) ", \ __func__, __LINE__, current->pid); \ } while (0) |
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#define dbg_err(fmt, ...) do { \ if (0) \ ubifs_err(fmt, ##__VA_ARGS__); \ |
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} while (0) |
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#define DBGKEY(key) ((char *)(key)) #define DBGKEY1(key) ((char *)(key)) |
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#define ubifs_dbg_msg(fmt, ...) do { \ if (0) \ printk(KERN_DEBUG fmt " ", ##__VA_ARGS__); \ |
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} while (0) |
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#define dbg_dump_stack() |
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#define ubifs_assert_cmt_locked(c) |
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#define dbg_msg(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_gen(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_jnl(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_jnlk(key, fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_tnc(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_tnck(key, fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_lp(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_find(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_mnt(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_mntk(key, fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_io(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_cmt(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_budg(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_log(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_gc(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_scan(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) #define dbg_rcvry(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__) |
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static inline int ubifs_debugging_init(struct ubifs_info *c) { return 0; } static inline void ubifs_debugging_exit(struct ubifs_info *c) { return; } static inline const char *dbg_ntype(int type) { return ""; } static inline const char *dbg_cstate(int cmt_state) { return ""; } static inline const char *dbg_jhead(int jhead) { return ""; } static inline const char * dbg_get_key_dump(const struct ubifs_info *c, const union ubifs_key *key) { return ""; } |
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static inline const char * dbg_snprintf_key(const struct ubifs_info *c, const union ubifs_key *key, char *buffer, int len) { return ""; } |
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static inline void dbg_dump_inode(struct ubifs_info *c, |
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const struct inode *inode) { return; } static inline void dbg_dump_node(const struct ubifs_info *c, const void *node) { return; } static inline void dbg_dump_lpt_node(const struct ubifs_info *c, void *node, int lnum, int offs) { return; } static inline void dbg_dump_budget_req(const struct ubifs_budget_req *req) { return; } static inline void dbg_dump_lstats(const struct ubifs_lp_stats *lst) { return; } |
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static inline void dbg_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi) { return; } |
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static inline void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp) { return; } static inline void dbg_dump_lprops(struct ubifs_info *c) { return; } static inline void dbg_dump_lpt_info(struct ubifs_info *c) { return; } static inline void dbg_dump_leb(const struct ubifs_info *c, int lnum) { return; } static inline void |
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dbg_dump_sleb(const struct ubifs_info *c, const struct ubifs_scan_leb *sleb, int offs) { return; } static inline void |
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dbg_dump_znode(const struct ubifs_info *c, const struct ubifs_znode *znode) { return; } static inline void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat) { return; } static inline void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode, struct ubifs_nnode *parent, int iip) { return; } static inline void dbg_dump_tnc(struct ubifs_info *c) { return; } static inline void dbg_dump_index(struct ubifs_info *c) { return; } static inline void dbg_dump_lpt_lebs(const struct ubifs_info *c) { return; } static inline int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb, dbg_znode_callback znode_cb, void *priv) { return 0; } static inline void dbg_save_space_info(struct ubifs_info *c) { return; } static inline int dbg_check_space_info(struct ubifs_info *c) { return 0; } static inline int dbg_check_lprops(struct ubifs_info *c) { return 0; } static inline int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot) { return 0; } static inline int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot) { return 0; } static inline int dbg_check_cats(struct ubifs_info *c) { return 0; } static inline int dbg_check_ltab(struct ubifs_info *c) { return 0; } static inline int dbg_chk_lpt_free_spc(struct ubifs_info *c) { return 0; } static inline int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len) { return 0; } |
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static inline int dbg_check_synced_i_size(const struct ubifs_info *c, struct inode *inode) { return 0; } |
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static inline int dbg_check_dir(struct ubifs_info *c, |
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const struct inode *dir) { return 0; } |
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static inline int dbg_check_tnc(struct ubifs_info *c, int extra) { return 0; } static inline int dbg_check_idx_size(struct ubifs_info *c, long long idx_size) { return 0; } static inline int dbg_check_filesystem(struct ubifs_info *c) { return 0; } static inline void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat, int add_pos) { return; } static inline int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode, int row, int col) { return 0; } static inline int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode, loff_t size) { return 0; } static inline int dbg_check_data_nodes_order(struct ubifs_info *c, struct list_head *head) { return 0; } static inline int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head) { return 0; } |
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static inline int dbg_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offset, int len, int dtype) { return 0; } static inline int dbg_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len, int dtype) { return 0; } static inline int dbg_leb_unmap(struct ubifs_info *c, int lnum) { return 0; } static inline int dbg_leb_map(struct ubifs_info *c, int lnum, int dtype) { return 0; } |
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static inline int dbg_is_chk_gen(const struct ubifs_info *c) { return 0; } |
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static inline int dbg_is_chk_index(const struct ubifs_info *c) { return 0; } |
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static inline int dbg_is_chk_orph(const struct ubifs_info *c) { return 0; } |
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static inline int dbg_is_chk_lprops(const struct ubifs_info *c) { return 0; } static inline int dbg_is_chk_fs(const struct ubifs_info *c) { return 0; } static inline int dbg_is_tst_rcvry(const struct ubifs_info *c) { return 0; } |
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static inline int dbg_is_power_cut(const struct ubifs_info *c) { return 0; } |
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static inline int dbg_debugfs_init(void) { return 0; } static inline void dbg_debugfs_exit(void) { return; } static inline int dbg_debugfs_init_fs(struct ubifs_info *c) { return 0; } static inline int dbg_debugfs_exit_fs(struct ubifs_info *c) { return 0; } |
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#endif /* !CONFIG_UBIFS_FS_DEBUG */ |
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#endif /* !__UBIFS_DEBUG_H__ */ |