8 files changed, 115 insertions, 106 deletions

diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index 64fbb0021825..ead2cd16ba75 100644
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -43,7 +43,10 @@
         pr_debug("UBI DBG " type ": " fmt "\n", ##__VA_ARGS__)
 
 /* Just a debugging messages not related to any specific UBI subsystem */
-#define dbg_msg(fmt, ...) ubi_dbg_msg("msg", fmt, ##__VA_ARGS__)
+#define dbg_msg(fmt, ...)                                    \
+        printk(KERN_DEBUG "UBI DBG (pid %d): %s: " fmt "\n", \
+               current->pid, __func__, ##__VA_ARGS__)
+
 /* General debugging messages */
 #define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
 /* Messages from the eraseblock association sub-system */
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 9ad18da1891d..890754c9f327 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -306,7 +306,7 @@ static int create_vtbl(struct ubi_device *ubi, struct ubi_scan_info *si,
                        int copy, void *vtbl)
 {
         int err, tries = 0;
-        static struct ubi_vid_hdr *vid_hdr;
+        struct ubi_vid_hdr *vid_hdr;
         struct ubi_scan_leb *new_seb;
 
         ubi_msg("create volume table (copy #%d)", copy + 1);
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index b09ba2dd8b62..f922cbacdb96 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -38,9 +38,6 @@
 
 DEFINE_SPINLOCK(dbg_lock);
 
-static char dbg_key_buf0[128];
-static char dbg_key_buf1[128];
-
 static const char *get_key_fmt(int fmt)
 {
         switch (fmt) {
@@ -103,8 +100,8 @@ static const char *get_dent_type(int type)
         }
 }
 
-static void sprintf_key(const struct ubifs_info *c, const union ubifs_key *key,
-                        char *buffer)
+const char *dbg_snprintf_key(const struct ubifs_info *c,
+                             const union ubifs_key *key, char *buffer, int len)
 {
         char *p = buffer;
         int type = key_type(c, key);
@@ -112,45 +109,34 @@ static void sprintf_key(const struct ubifs_info *c, const union ubifs_key *key,
         if (c->key_fmt == UBIFS_SIMPLE_KEY_FMT) {
                 switch (type) {
                 case UBIFS_INO_KEY:
-                        sprintf(p, "(%lu, %s)", (unsigned long)key_inum(c, key),
-                               get_key_type(type));
+                        len -= snprintf(p, len, "(%lu, %s)",
+                                        (unsigned long)key_inum(c, key),
+                                        get_key_type(type));
                         break;
                 case UBIFS_DENT_KEY:
                 case UBIFS_XENT_KEY:
-                        sprintf(p, "(%lu, %s, %#08x)",
-                                (unsigned long)key_inum(c, key),
-                                get_key_type(type), key_hash(c, key));
+                        len -= snprintf(p, len, "(%lu, %s, %#08x)",
+                                        (unsigned long)key_inum(c, key),
+                                        get_key_type(type), key_hash(c, key));
                         break;
                 case UBIFS_DATA_KEY:
-                        sprintf(p, "(%lu, %s, %u)",
-                                (unsigned long)key_inum(c, key),
-                                get_key_type(type), key_block(c, key));
+                        len -= snprintf(p, len, "(%lu, %s, %u)",
+                                        (unsigned long)key_inum(c, key),
+                                        get_key_type(type), key_block(c, key));
                         break;
                 case UBIFS_TRUN_KEY:
-                        sprintf(p, "(%lu, %s)",
-                                (unsigned long)key_inum(c, key),
-                                get_key_type(type));
+                        len -= snprintf(p, len, "(%lu, %s)",
+                                        (unsigned long)key_inum(c, key),
+                                        get_key_type(type));
                         break;
                 default:
-                        sprintf(p, "(bad key type: %#08x, %#08x)",
-                                key->u32[0], key->u32[1]);
+                        len -= snprintf(p, len, "(bad key type: %#08x, %#08x)",
+                                        key->u32[0], key->u32[1]);
                 }
         } else
-                sprintf(p, "bad key format %d", c->key_fmt);
-}
-
-const char *dbg_key_str0(const struct ubifs_info *c, const union ubifs_key *key)
-{
-        /* dbg_lock must be held */
-        sprintf_key(c, key, dbg_key_buf0);
-        return dbg_key_buf0;
-}
-
-const char *dbg_key_str1(const struct ubifs_info *c, const union ubifs_key *key)
-{
-        /* dbg_lock must be held */
-        sprintf_key(c, key, dbg_key_buf1);
-        return dbg_key_buf1;
+                len -= snprintf(p, len, "bad key format %d", c->key_fmt);
+        ubifs_assert(len > 0);
+        return p;
 }
 
 const char *dbg_ntype(int type)
@@ -319,6 +305,7 @@ void dbg_dump_node(const struct ubifs_info *c, const void *node)
         int i, n;
         union ubifs_key key;
         const struct ubifs_ch *ch = node;
+        char key_buf[DBG_KEY_BUF_LEN];
 
         if (dbg_is_tst_rcvry(c))
                 return;
@@ -474,7 +461,8 @@ void dbg_dump_node(const struct ubifs_info *c, const void *node)
                 const struct ubifs_ino_node *ino = node;
 
                 key_read(c, &ino->key, &key);
-                printk(KERN_DEBUG "\tkey            %s\n", DBGKEY(&key));
+                printk(KERN_DEBUG "\tkey            %s\n",
+                       dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
                 printk(KERN_DEBUG "\tcreat_sqnum    %llu\n",
                        (unsigned long long)le64_to_cpu(ino->creat_sqnum));
                 printk(KERN_DEBUG "\tsize           %llu\n",
@@ -517,7 +505,8 @@ void dbg_dump_node(const struct ubifs_info *c, const void *node)
                 int nlen = le16_to_cpu(dent->nlen);
 
                 key_read(c, &dent->key, &key);
-                printk(KERN_DEBUG "\tkey            %s\n", DBGKEY(&key));
+                printk(KERN_DEBUG "\tkey            %s\n",
+                       dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
                 printk(KERN_DEBUG "\tinum           %llu\n",
                        (unsigned long long)le64_to_cpu(dent->inum));
                 printk(KERN_DEBUG "\ttype           %d\n", (int)dent->type);
@@ -541,7 +530,8 @@ void dbg_dump_node(const struct ubifs_info *c, const void *node)
                 int dlen = le32_to_cpu(ch->len) - UBIFS_DATA_NODE_SZ;
 
                 key_read(c, &dn->key, &key);
-                printk(KERN_DEBUG "\tkey            %s\n", DBGKEY(&key));
+                printk(KERN_DEBUG "\tkey            %s\n",
+                       dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
                 printk(KERN_DEBUG "\tsize           %u\n",
                        le32_to_cpu(dn->size));
                 printk(KERN_DEBUG "\tcompr_typ      %d\n",
@@ -582,7 +572,9 @@ void dbg_dump_node(const struct ubifs_info *c, const void *node)
                         key_read(c, &br->key, &key);
                         printk(KERN_DEBUG "\t%d: LEB %d:%d len %d key %s\n",
                                i, le32_to_cpu(br->lnum), le32_to_cpu(br->offs),
-                               le32_to_cpu(br->len), DBGKEY(&key));
+                               le32_to_cpu(br->len),
+                               dbg_snprintf_key(c, &key, key_buf,
+                                                DBG_KEY_BUF_LEN));
                 }
                 break;
         }
@@ -934,6 +926,7 @@ void dbg_dump_znode(const struct ubifs_info *c,
 {
         int n;
         const struct ubifs_zbranch *zbr;
+        char key_buf[DBG_KEY_BUF_LEN];
 
         spin_lock(&dbg_lock);
         if (znode->parent)
@@ -958,12 +951,16 @@ void dbg_dump_znode(const struct ubifs_info *c,
                         printk(KERN_DEBUG "\t%d: znode %p LEB %d:%d len %d key "
                                           "%s\n", n, zbr->znode, zbr->lnum,
                                           zbr->offs, zbr->len,
-                                          DBGKEY(&zbr->key));
+                                          dbg_snprintf_key(c, &zbr->key,
+                                                           key_buf,
+                                                           DBG_KEY_BUF_LEN));
                 else
                         printk(KERN_DEBUG "\t%d: LNC %p LEB %d:%d len %d key "
                                           "%s\n", n, zbr->znode, zbr->lnum,
                                           zbr->offs, zbr->len,
-                                          DBGKEY(&zbr->key));
+                                          dbg_snprintf_key(c, &zbr->key,
+                                                           key_buf,
+                                                           DBG_KEY_BUF_LEN));
         }
         spin_unlock(&dbg_lock);
 }
@@ -1260,6 +1257,7 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
         int err, nlen1, nlen2, cmp;
         struct ubifs_dent_node *dent1, *dent2;
         union ubifs_key key;
+        char key_buf[DBG_KEY_BUF_LEN];
 
         ubifs_assert(!keys_cmp(c, &zbr1->key, &zbr2->key));
         dent1 = kmalloc(UBIFS_MAX_DENT_NODE_SZ, GFP_NOFS);
@@ -1290,9 +1288,11 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
         key_read(c, &dent1->key, &key);
         if (keys_cmp(c, &zbr1->key, &key)) {
                 dbg_err("1st entry at %d:%d has key %s", zbr1->lnum,
-                        zbr1->offs, DBGKEY(&key));
+                        zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
+                                                     DBG_KEY_BUF_LEN));
                 dbg_err("but it should have key %s according to tnc",
-                        DBGKEY(&zbr1->key));
+                        dbg_snprintf_key(c, &zbr1->key, key_buf,
+                                         DBG_KEY_BUF_LEN));
                 dbg_dump_node(c, dent1);
                 goto out_free;
         }
@@ -1300,9 +1300,11 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
         key_read(c, &dent2->key, &key);
         if (keys_cmp(c, &zbr2->key, &key)) {
                 dbg_err("2nd entry at %d:%d has key %s", zbr1->lnum,
-                        zbr1->offs, DBGKEY(&key));
+                        zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
+                                                     DBG_KEY_BUF_LEN));
                 dbg_err("but it should have key %s according to tnc",
-                        DBGKEY(&zbr2->key));
+                        dbg_snprintf_key(c, &zbr2->key, key_buf,
+                                         DBG_KEY_BUF_LEN));
                 dbg_dump_node(c, dent2);
                 goto out_free;
         }
@@ -1319,7 +1321,7 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
                 dbg_err("2 xent/dent nodes with the same name");
         else
                 dbg_err("bad order of colliding key %s",
-                        DBGKEY(&key));
+                        dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
 
         ubifs_msg("first node at %d:%d\n", zbr1->lnum, zbr1->offs);
         dbg_dump_node(c, dent1);
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index 8d9c46810189..307ab1d23f75 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -169,40 +169,39 @@ struct ubifs_global_debug_info {
         spin_unlock(&dbg_lock);                                                \
 } while (0)
 
-const char *dbg_key_str0(const struct ubifs_info *c,
-                         const union ubifs_key *key);
-const char *dbg_key_str1(const struct ubifs_info *c,
-                         const union ubifs_key *key);
-
-/*
- * DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
- * macros.
- */
-#define DBGKEY(key) dbg_key_str0(c, (key))
-#define DBGKEY1(key) dbg_key_str1(c, (key))
-
-extern spinlock_t dbg_lock;
-
-#define ubifs_dbg_msg(type, fmt, ...) do {                        \
-        spin_lock(&dbg_lock);                                     \
-        pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__); \
-        spin_unlock(&dbg_lock);                                   \
+#define ubifs_dbg_msg(type, fmt, ...) \
+        pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__)
+
+#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\n", ##__VA_ARGS__,             \
+                 dbg_snprintf_key(c, key, __tmp_key_buf, DBG_KEY_BUF_LEN));    \
 } while (0)
 
 /* Just a debugging messages not related to any specific UBIFS subsystem */
-#define dbg_msg(fmt, ...)   ubifs_dbg_msg("msg", fmt, ##__VA_ARGS__)
+#define dbg_msg(fmt, ...)                                                      \
+        printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", current->pid,   \
+               __func__, ##__VA_ARGS__)
+
 /* General messages */
 #define dbg_gen(fmt, ...)   ubifs_dbg_msg("gen", fmt, ##__VA_ARGS__)
 /* Additional journal messages */
 #define dbg_jnl(fmt, ...)   ubifs_dbg_msg("jnl", fmt, ##__VA_ARGS__)
+#define dbg_jnlk(key, fmt, ...) \
+        ubifs_dbg_msg_key("jnl", key, fmt, ##__VA_ARGS__)
 /* Additional TNC messages */
 #define dbg_tnc(fmt, ...)   ubifs_dbg_msg("tnc", fmt, ##__VA_ARGS__)
+#define dbg_tnck(key, fmt, ...) \
+        ubifs_dbg_msg_key("tnc", key, fmt, ##__VA_ARGS__)
 /* Additional lprops messages */
 #define dbg_lp(fmt, ...)    ubifs_dbg_msg("lp", fmt, ##__VA_ARGS__)
 /* Additional LEB find messages */
 #define dbg_find(fmt, ...)  ubifs_dbg_msg("find", fmt, ##__VA_ARGS__)
 /* Additional mount messages */
 #define dbg_mnt(fmt, ...)   ubifs_dbg_msg("mnt", fmt, ##__VA_ARGS__)
+#define dbg_mntk(key, fmt, ...) \
+        ubifs_dbg_msg_key("mnt", key, fmt, ##__VA_ARGS__)
 /* Additional I/O messages */
 #define dbg_io(fmt, ...)    ubifs_dbg_msg("io", fmt, ##__VA_ARGS__)
 /* Additional commit messages */
@@ -218,6 +217,7 @@ extern spinlock_t dbg_lock;
 /* Additional recovery messages */
 #define dbg_rcvry(fmt, ...) ubifs_dbg_msg("rcvry", fmt, ##__VA_ARGS__)
 
+extern spinlock_t dbg_lock;
 extern struct ubifs_global_debug_info ubifs_dbg;
 
 static inline int dbg_is_chk_gen(const struct ubifs_info *c)
@@ -258,6 +258,8 @@ const char *dbg_cstate(int cmt_state);
 const char *dbg_jhead(int jhead);
 const char *dbg_get_key_dump(const struct ubifs_info *c,
                              const union ubifs_key *key);
+const char *dbg_snprintf_key(const struct ubifs_info *c,
+                             const union ubifs_key *key, char *buffer, int len);
 void dbg_dump_inode(struct ubifs_info *c, const struct inode *inode);
 void dbg_dump_node(const struct ubifs_info *c, const void *node);
 void dbg_dump_lpt_node(const struct ubifs_info *c, void *node, int lnum,
@@ -368,6 +370,10 @@ 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 ""; }
+static inline const char *
+dbg_snprintf_key(const struct ubifs_info *c,
+                 const union ubifs_key *key, char *buffer,
+                 int len)                                         { return ""; }
 static inline void dbg_dump_inode(struct ubifs_info *c,
                                   const struct inode *inode)      { return; }
 static inline void dbg_dump_node(const struct ubifs_info *c,
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index cef0460f4c54..2f438ab2e7a2 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -697,9 +697,8 @@ int ubifs_jnl_write_data(struct ubifs_info *c, const struct inode *inode,
         int dlen = COMPRESSED_DATA_NODE_BUF_SZ, allocated = 1;
         struct ubifs_inode *ui = ubifs_inode(inode);
 
-        dbg_jnl("ino %lu, blk %u, len %d, key %s",
-                (unsigned long)key_inum(c, key), key_block(c, key), len,
-                DBGKEY(key));
+        dbg_jnlk(key, "ino %lu, blk %u, len %d, key ",
+                (unsigned long)key_inum(c, key), key_block(c, key), len);
         ubifs_assert(len <= UBIFS_BLOCK_SIZE);
 
         data = kmalloc(dlen, GFP_NOFS | __GFP_NOWARN);
@@ -1177,7 +1176,7 @@ int ubifs_jnl_truncate(struct ubifs_info *c, const struct inode *inode,
                 dn = (void *)trun + UBIFS_TRUN_NODE_SZ;
                 blk = new_size >> UBIFS_BLOCK_SHIFT;
                 data_key_init(c, &key, inum, blk);
-                dbg_jnl("last block key %s", DBGKEY(&key));
+                dbg_jnlk(&key, "last block key ");
                 err = ubifs_tnc_lookup(c, &key, dn);
                 if (err == -ENOENT)
                         dlen = 0; /* Not found (so it is a hole) */
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c
index ccabaf1164b3..b007637f0406 100644
--- a/fs/ubifs/replay.c
+++ b/fs/ubifs/replay.c
@@ -221,8 +221,8 @@ static int apply_replay_entry(struct ubifs_info *c, struct replay_entry *r)
 {
         int err;
 
-        dbg_mnt("LEB %d:%d len %d deletion %d sqnum %llu %s", r->lnum,
-                r->offs, r->len, r->deletion, r->sqnum, DBGKEY(&r->key));
+        dbg_mntk(&r->key, "LEB %d:%d len %d deletion %d sqnum %llu key ",
+                 r->lnum, r->offs, r->len, r->deletion, r->sqnum);
 
         /* Set c->replay_sqnum to help deal with dangling branches. */
         c->replay_sqnum = r->sqnum;
@@ -361,7 +361,7 @@ static int insert_node(struct ubifs_info *c, int lnum, int offs, int len,
 {
         struct replay_entry *r;
 
-        dbg_mnt("add LEB %d:%d, key %s", lnum, offs, DBGKEY(key));
+        dbg_mntk(key, "add LEB %d:%d, key ", lnum, offs);
 
         if (key_inum(c, key) >= c->highest_inum)
                 c->highest_inum = key_inum(c, key);
@@ -409,7 +409,7 @@ static int insert_dent(struct ubifs_info *c, int lnum, int offs, int len,
         struct replay_entry *r;
         char *nbuf;
 
-        dbg_mnt("add LEB %d:%d, key %s", lnum, offs, DBGKEY(key));
+        dbg_mntk(key, "add LEB %d:%d, key ", lnum, offs);
         if (key_inum(c, key) >= c->highest_inum)
                 c->highest_inum = key_inum(c, key);
 
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index e14ee53159db..16ad84d8402f 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -505,7 +505,7 @@ static int fallible_read_node(struct ubifs_info *c, const union ubifs_key *key,
 {
         int ret;
 
-        dbg_tnc("LEB %d:%d, key %s", zbr->lnum, zbr->offs, DBGKEY(key));
+        dbg_tnck(key, "LEB %d:%d, key ", zbr->lnum, zbr->offs);
 
         ret = try_read_node(c, node, key_type(c, key), zbr->len, zbr->lnum,
                             zbr->offs);
@@ -519,8 +519,8 @@ static int fallible_read_node(struct ubifs_info *c, const union ubifs_key *key,
                         ret = 0;
         }
         if (ret == 0 && c->replaying)
-                dbg_mnt("dangling branch LEB %d:%d len %d, key %s",
-                        zbr->lnum, zbr->offs, zbr->len, DBGKEY(key));
+                dbg_mntk(key, "dangling branch LEB %d:%d len %d, key ",
+                        zbr->lnum, zbr->offs, zbr->len);
         return ret;
 }
 
@@ -995,9 +995,9 @@ static int fallible_resolve_collision(struct ubifs_info *c,
         if (adding || !o_znode)
                 return 0;
 
-        dbg_mnt("dangling match LEB %d:%d len %d %s",
+        dbg_mntk(key, "dangling match LEB %d:%d len %d key ",
                 o_znode->zbranch[o_n].lnum, o_znode->zbranch[o_n].offs,
-                o_znode->zbranch[o_n].len, DBGKEY(key));
+                o_znode->zbranch[o_n].len);
         *zn = o_znode;
         *n = o_n;
         return 1;
@@ -1179,7 +1179,7 @@ int ubifs_lookup_level0(struct ubifs_info *c, const union ubifs_key *key,
         struct ubifs_znode *znode;
         unsigned long time = get_seconds();
 
-        dbg_tnc("search key %s", DBGKEY(key));
+        dbg_tnck(key, "search key ");
         ubifs_assert(key_type(c, key) < UBIFS_INVALID_KEY);
 
         znode = c->zroot.znode;
@@ -1315,7 +1315,7 @@ static int lookup_level0_dirty(struct ubifs_info *c, const union ubifs_key *key,
         struct ubifs_znode *znode;
         unsigned long time = get_seconds();
 
-        dbg_tnc("search and dirty key %s", DBGKEY(key));
+        dbg_tnck(key, "search and dirty key ");
 
         znode = c->zroot.znode;
         if (unlikely(!znode)) {
@@ -1722,8 +1722,8 @@ static int validate_data_node(struct ubifs_info *c, void *buf,
         if (!keys_eq(c, &zbr->key, &key1)) {
                 ubifs_err("bad key in node at LEB %d:%d",
                           zbr->lnum, zbr->offs);
-                dbg_tnc("looked for key %s found node's key %s",
-                        DBGKEY(&zbr->key), DBGKEY1(&key1));
+                dbg_tnck(&zbr->key, "looked for key ");
+                dbg_tnck(&key1, "found node's key ");
                 goto out_err;
         }
 
@@ -1776,7 +1776,7 @@ int ubifs_tnc_bulk_read(struct ubifs_info *c, struct bu_info *bu)
                 ubifs_err("failed to read from LEB %d:%d, error %d",
                           lnum, offs, err);
                 dbg_dump_stack();
-                dbg_tnc("key %s", DBGKEY(&bu->key));
+                dbg_tnck(&bu->key, "key ");
                 return err;
         }
 
@@ -1811,7 +1811,7 @@ static int do_lookup_nm(struct ubifs_info *c, const union ubifs_key *key,
         int found, n, err;
         struct ubifs_znode *znode;
 
-        dbg_tnc("name '%.*s' key %s", nm->len, nm->name, DBGKEY(key));
+        dbg_tnck(key, "name '%.*s' key ", nm->len, nm->name);
         mutex_lock(&c->tnc_mutex);
         found = ubifs_lookup_level0(c, key, &znode, &n);
         if (!found) {
@@ -1985,8 +1985,7 @@ again:
         zp = znode->parent;
         if (znode->child_cnt < c->fanout) {
                 ubifs_assert(n != c->fanout);
-                dbg_tnc("inserted at %d level %d, key %s", n, znode->level,
-                        DBGKEY(key));
+                dbg_tnck(key, "inserted at %d level %d, key ", n, znode->level);
 
                 insert_zbranch(znode, zbr, n);
 
@@ -2001,7 +2000,7 @@ again:
          * Unfortunately, @znode does not have more empty slots and we have to
          * split it.
          */
-        dbg_tnc("splitting level %d, key %s", znode->level, DBGKEY(key));
+        dbg_tnck(key, "splitting level %d, key ", znode->level);
 
         if (znode->alt)
                 /*
@@ -2095,7 +2094,7 @@ do_split:
         }
 
         /* Insert new key and branch */
-        dbg_tnc("inserting at %d level %d, key %s", n, zn->level, DBGKEY(key));
+        dbg_tnck(key, "inserting at %d level %d, key ", n, zn->level);
 
         insert_zbranch(zi, zbr, n);
 
@@ -2171,7 +2170,7 @@ int ubifs_tnc_add(struct ubifs_info *c, const union ubifs_key *key, int lnum,
         struct ubifs_znode *znode;
 
         mutex_lock(&c->tnc_mutex);
-        dbg_tnc("%d:%d, len %d, key %s", lnum, offs, len, DBGKEY(key));
+        dbg_tnck(key, "%d:%d, len %d, key ", lnum, offs, len);
         found = lookup_level0_dirty(c, key, &znode, &n);
         if (!found) {
                 struct ubifs_zbranch zbr;
@@ -2220,8 +2219,8 @@ int ubifs_tnc_replace(struct ubifs_info *c, const union ubifs_key *key,
         struct ubifs_znode *znode;
 
         mutex_lock(&c->tnc_mutex);
-        dbg_tnc("old LEB %d:%d, new LEB %d:%d, len %d, key %s", old_lnum,
-                old_offs, lnum, offs, len, DBGKEY(key));
+        dbg_tnck(key, "old LEB %d:%d, new LEB %d:%d, len %d, key ", old_lnum,
+                 old_offs, lnum, offs, len);
         found = lookup_level0_dirty(c, key, &znode, &n);
         if (found < 0) {
                 err = found;
@@ -2303,8 +2302,8 @@ int ubifs_tnc_add_nm(struct ubifs_info *c, const union ubifs_key *key,
         struct ubifs_znode *znode;
 
         mutex_lock(&c->tnc_mutex);
-        dbg_tnc("LEB %d:%d, name '%.*s', key %s", lnum, offs, nm->len, nm->name,
-                DBGKEY(key));
+        dbg_tnck(key, "LEB %d:%d, name '%.*s', key ",
+                 lnum, offs, nm->len, nm->name);
         found = lookup_level0_dirty(c, key, &znode, &n);
         if (found < 0) {
                 err = found;
@@ -2397,7 +2396,7 @@ static int tnc_delete(struct ubifs_info *c, struct ubifs_znode *znode, int n)
         /* Delete without merge for now */
         ubifs_assert(znode->level == 0);
         ubifs_assert(n >= 0 && n < c->fanout);
-        dbg_tnc("deleting %s", DBGKEY(&znode->zbranch[n].key));
+        dbg_tnck(&znode->zbranch[n].key, "deleting key ");
 
         zbr = &znode->zbranch[n];
         lnc_free(zbr);
@@ -2507,7 +2506,7 @@ int ubifs_tnc_remove(struct ubifs_info *c, const union ubifs_key *key)
         struct ubifs_znode *znode;
 
         mutex_lock(&c->tnc_mutex);
-        dbg_tnc("key %s", DBGKEY(key));
+        dbg_tnck(key, "key ");
         found = lookup_level0_dirty(c, key, &znode, &n);
         if (found < 0) {
                 err = found;
@@ -2538,7 +2537,7 @@ int ubifs_tnc_remove_nm(struct ubifs_info *c, const union ubifs_key *key,
         struct ubifs_znode *znode;
 
         mutex_lock(&c->tnc_mutex);
-        dbg_tnc("%.*s, key %s", nm->len, nm->name, DBGKEY(key));
+        dbg_tnck(key, "%.*s, key ", nm->len, nm->name);
         err = lookup_level0_dirty(c, key, &znode, &n);
         if (err < 0)
                 goto out_unlock;
@@ -2653,7 +2652,7 @@ int ubifs_tnc_remove_range(struct ubifs_info *c, union ubifs_key *from_key,
                                 dbg_dump_znode(c, znode);
                                 goto out_unlock;
                         }
-                        dbg_tnc("removing %s", DBGKEY(key));
+                        dbg_tnck(key, "removing key ");
                 }
                 if (k) {
                         for (i = n + 1 + k; i < znode->child_cnt; i++)
@@ -2773,7 +2772,7 @@ struct ubifs_dent_node *ubifs_tnc_next_ent(struct ubifs_info *c,
         struct ubifs_zbranch *zbr;
         union ubifs_key *dkey;
 
-        dbg_tnc("%s %s", nm->name ? (char *)nm->name : "(lowest)", DBGKEY(key));
+        dbg_tnck(key, "%s ", nm->name ? (char *)nm->name : "(lowest)");
         ubifs_assert(is_hash_key(c, key));
 
         mutex_lock(&c->tnc_mutex);
@@ -3332,9 +3331,9 @@ int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode,
 
 out_dump:
         block = key_block(c, key);
-        ubifs_err("inode %lu has size %lld, but there are data at offset %lld "
-                  "(data key %s)", (unsigned long)inode->i_ino, size,
-                  ((loff_t)block) << UBIFS_BLOCK_SHIFT, DBGKEY(key));
+        ubifs_err("inode %lu has size %lld, but there are data at offset %lld",
+                  (unsigned long)inode->i_ino, size,
+                  ((loff_t)block) << UBIFS_BLOCK_SHIFT);
         mutex_unlock(&c->tnc_mutex);
         dbg_dump_inode(c, inode);
         dbg_dump_stack();
diff --git a/fs/ubifs/tnc_misc.c b/fs/ubifs/tnc_misc.c
index b48db999903e..dc28fe6ec07a 100644
--- a/fs/ubifs/tnc_misc.c
+++ b/fs/ubifs/tnc_misc.c
@@ -328,8 +328,8 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
                 case UBIFS_XENT_KEY:
                         break;
                 default:
-                        dbg_msg("bad key type at slot %d: %s", i,
-                                DBGKEY(&zbr->key));
+                        dbg_msg("bad key type at slot %d: %d",
+                                i, key_type(c, &zbr->key));
                         err = 3;
                         goto out_dump;
                 }
@@ -475,7 +475,7 @@ int ubifs_tnc_read_node(struct ubifs_info *c, struct ubifs_zbranch *zbr,
                                       zbr->offs);
 
         if (err) {
-                dbg_tnc("key %s", DBGKEY(key));
+                dbg_tnck(key, "key ");
                 return err;
         }
 
@@ -484,8 +484,8 @@ int ubifs_tnc_read_node(struct ubifs_info *c, struct ubifs_zbranch *zbr,
         if (!keys_eq(c, key, &key1)) {
                 ubifs_err("bad key in node at LEB %d:%d",
                           zbr->lnum, zbr->offs);
-                dbg_tnc("looked for key %s found node's key %s",
-                        DBGKEY(key), DBGKEY1(&key1));
+                dbg_tnck(key, "looked for key ");
+                dbg_tnck(&key1, "but found node's key ");
                 dbg_dump_node(c, node);
                 return -EINVAL;
         }