Many files:

  Removed unused code
.del-os0trash.c~8cae5c1695501117:
  Delete: innobase/os/os0trash.c
dict0crea.c:
  Protect all sprintf(%s) with assertions


BitKeeper/deleted/.del-os0trash.c~8cae5c1695501117:
  Delete: innobase/os/os0trash.c
innobase/btr/btr0sea.c:
  Removed unused code
innobase/buf/buf0buf.c:
  Removed unused code
innobase/com/com0shm.c:
  Removed unused code
innobase/data/data0data.c:
  Removed unused code
innobase/dict/dict0crea.c:
  Removed unused code
innobase/fsp/fsp0fsp.c:
  Removed unused code
innobase/ha/ha0ha.c:
  Removed unused code
innobase/include/btr0cur.h:
  Removed unused code
innobase/include/btr0sea.h:
  Removed unused code
innobase/include/buf0buf.ic:
  Removed unused code
innobase/include/data0data.h:
  Removed unused code
innobase/include/dict0crea.h:
  Removed unused code
innobase/include/dict0dict.h:
  Removed unused code
innobase/include/ibuf0ibuf.h:
  Removed unused code
innobase/include/lock0lock.h:
  Removed unused code
innobase/include/mem0dbg.h:
  Removed unused code
innobase/include/mem0mem.ic:
  Removed unused code
innobase/include/mtr0log.h:
  Removed unused code
innobase/include/mtr0mtr.h:
  Removed unused code
innobase/include/os0proc.h:
  Removed unused code
innobase/include/os0thread.h:
  Removed unused code
innobase/include/rem0cmp.ic:
  Removed unused code
innobase/include/row0row.h:
  Removed unused code
innobase/include/srv0srv.h:
  Removed unused code
innobase/include/sync0sync.h:
  Removed unused code
innobase/lock/lock0lock.c:
  Removed unused code
innobase/log/log0recv.c:
  Removed unused code
innobase/mem/mem0dbg.c:
  Removed unused code
innobase/mtr/mtr0mtr.c:
  Removed unused code
innobase/os/os0proc.c:
  Removed unused code
innobase/page/page0page.c:
  Removed unused code
innobase/que/que0que.c:
  Removed unused code
innobase/rem/rem0cmp.c:
  Removed unused code
innobase/row/row0ins.c:
  Removed unused code
innobase/row/row0mysql.c:
  Removed unused code
innobase/row/row0row.c:
  Removed unused code
innobase/srv/srv0srv.c:
  Removed unused code
innobase/srv/srv0start.c:
  Removed unused code
innobase/sync/sync0sync.c:
  Removed unused code
innobase/trx/trx0rec.c:
  Removed unused code
innobase/trx/trx0trx.c:
  Removed unused code
innobase/ut/ut0dbg.c:
  Removed unused code
innobase/ut/ut0mem.c:
  Removed unused code
innobase/ut/ut0ut.c:
  Removed unused code

18 files changed, 8 insertions, 326 deletions

diff --git a/innobase/include/btr0cur.h b/innobase/include/btr0cur.h
index 31aecef8104..221f479df40 100644
--- a/innobase/include/btr0cur.h
+++ b/innobase/include/btr0cur.h
@@ -365,17 +365,6 @@ btr_cur_parse_update_in_place(
 	byte*	ptr,	/* in: buffer */
 	byte*	end_ptr,/* in: buffer end */
 	page_t*	page);	/* in: page or NULL */
-/***************************************************************
-Parses a redo log record of updating a record, but not in-place. */
-
-byte*
-btr_cur_parse_opt_update(
-/*=====================*/
-			/* out: end of log record or NULL */
-	byte*	ptr,	/* in: buffer */
-	byte*	end_ptr,/* in: buffer end */
-	page_t*	page,	/* in: page or NULL */
-	mtr_t*	mtr);	/* in: mtr or NULL */
 /********************************************************************
 Parses the redo log record for delete marking or unmarking of a clustered
 index record. */
diff --git a/innobase/include/btr0sea.h b/innobase/include/btr0sea.h
index ee762a12221..68396d47193 100644
--- a/innobase/include/btr0sea.h
+++ b/innobase/include/btr0sea.h
@@ -49,21 +49,6 @@ btr_search_info_update(
 	dict_index_t*	index,	/* in: index of the cursor */
 	btr_cur_t*	cursor);/* in: cursor which was just positioned */
 /**********************************************************************
-Tries to guess the right search position based on the search pattern info
-of the index. */
-
-ibool
-btr_search_guess_on_pattern(
-/*========================*/
-					/* out: TRUE if succeeded */	
-	dict_index_t*	index,		/* in: index */
-	btr_search_t*	info,		/* in: index search info */
-	dtuple_t*	tuple,		/* in: logical record */
-	ulint		mode,		/* in: PAGE_CUR_L, ... */
-	ulint		latch_mode, 	/* in: BTR_SEARCH_LEAF, ... */
-	btr_cur_t*	cursor, 	/* out: tree cursor */
-	mtr_t*		mtr);		/* in: mtr */
-/**********************************************************************
 Tries to guess the right search position based on the hash search info
 of the index. Note that if mode is PAGE_CUR_LE, which is used in inserts,
 and the function returns TRUE, then cursor->up_match and cursor->low_match
@@ -140,26 +125,6 @@ btr_search_update_hash_on_delete(
 				record to delete using btr_cur_search_...,
 				the record is not yet deleted */
 /************************************************************************
-Prints info of the search system. */
-
-void
-btr_search_print_info(void);
-/*=======================*/
-/************************************************************************
-Prints info of searches on an index. */
-
-void
-btr_search_index_print_info(
-/*========================*/
-	dict_index_t*	index);	/* in: index */
-/************************************************************************
-Prints info of searches on a table. */
-
-void
-btr_search_table_print_info(
-/*========================*/
-	char*	name);	/* in: table name */
-/************************************************************************
 Validates the search system. */
 
 ibool
diff --git a/innobase/include/buf0buf.ic b/innobase/include/buf0buf.ic
index 7227c79dc6a..d8e5857a570 100644
--- a/innobase/include/buf0buf.ic
+++ b/innobase/include/buf0buf.ic
@@ -501,6 +501,7 @@ buf_frame_get_modify_clock(
 	return(block->modify_clock);
 }
 
+#ifdef UNIV_SYNC_DEBUG
 /***********************************************************************
 Increments the bufferfix count. */
 UNIV_INLINE
@@ -519,7 +520,7 @@ buf_block_buf_fix_inc_debug(
 
 	block->buf_fix_count++;
 }
-
+#else /* UNIV_SYNC_DEBUG */
 /***********************************************************************
 Increments the bufferfix count. */
 UNIV_INLINE
@@ -530,7 +531,7 @@ buf_block_buf_fix_inc(
 {
 	block->buf_fix_count++;
 }
-
+#endif /* UNIV_SYNC_DEBUG */
 /**********************************************************************
 Returns the control block of a file page, NULL if not found. */
 UNIV_INLINE
diff --git a/innobase/include/data0data.h b/innobase/include/data0data.h
index 2ec94a9517a..2501d2b809f 100644
--- a/innobase/include/data0data.h
+++ b/innobase/include/data0data.h
@@ -375,84 +375,6 @@ dtuple_big_rec_free(
 /*================*/
 	big_rec_t*	vector);	/* in, own: big rec vector; it is
 				freed in this function */
-/***************************************************************
-Generates a random tuple. */
-
-dtuple_t*
-dtuple_gen_rnd_tuple(
-/*=================*/
-				/* out: pointer to the tuple */
-	mem_heap_t*	heap);	/* in: memory heap where generated */
-/*******************************************************************
-Generates a test tuple for sort and comparison tests. */
-
-void
-dtuple_gen_test_tuple(
-/*==================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with 3 fields */
-	ulint		i);	/* in: a number, 0 <= i < 512 */
-/*******************************************************************
-Generates a test tuple for B-tree speed tests. */
-
-void
-dtuple_gen_test_tuple3(
-/*===================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with 3 fields */
-	ulint		i,	/* in: a number < 1000000 */
-	ulint		type,	/* in: DTUPLE_TEST_FIXED30, ... */
-	byte*		buf);	/* in: a buffer of size >= 8 bytes */
-/*******************************************************************
-Generates a test tuple for B-tree speed tests. */
-
-void
-dtuple_gen_search_tuple3(
-/*=====================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with 1 or 2 fields */
-	ulint		i,	/* in: a number < 1000000 */
-	byte*		buf);	/* in: a buffer of size >= 8 bytes */
-/*******************************************************************
-Generates a test tuple for TPC-A speed test. */
-
-void
-dtuple_gen_test_tuple_TPC_A(
-/*========================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with >= 3 fields */
-	ulint		i,	/* in: a number < 10000 */
-	byte*		buf);	/* in: a buffer of size >= 16 bytes */
-/*******************************************************************
-Generates a test tuple for B-tree speed tests. */
-
-void
-dtuple_gen_search_tuple_TPC_A(
-/*==========================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with 1 field */
-	ulint		i,	/* in: a number < 10000 */
-	byte*		buf);	/* in: a buffer of size >= 16 bytes */
-/*******************************************************************
-Generates a test tuple for TPC-C speed test. */
-
-void
-dtuple_gen_test_tuple_TPC_C(
-/*========================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with >= 12 fields */
-	ulint		i,	/* in: a number < 100000 */
-	byte*		buf);	/* in: a buffer of size >= 16 bytes */
-/*******************************************************************
-Generates a test tuple for B-tree speed tests. */
-
-void
-dtuple_gen_search_tuple_TPC_C(
-/*==========================*/
-	dtuple_t*	tuple,	/* in/out: a tuple with 1 field */
-	ulint		i,	/* in: a number < 100000 */
-	byte*		buf);	/* in: a buffer of size >= 16 bytes */
-
-/* Types of the third field in dtuple_gen_test_tuple3 */	
-#define DTUPLE_TEST_FIXED30	1
-#define DTUPLE_TEST_RND30	2
-#define DTUPLE_TEST_RND3500	3
-#define DTUPLE_TEST_FIXED2000	4
-#define DTUPLE_TEST_FIXED3	5
 
 /*######################################################################*/
 
diff --git a/innobase/include/dict0crea.h b/innobase/include/dict0crea.h
index b2c3ad7ca96..8b6944fc605 100644
--- a/innobase/include/dict0crea.h
+++ b/innobase/include/dict0crea.h
@@ -17,15 +17,6 @@ Created 1/8/1996 Heikki Tuuri
 #include "mtr0mtr.h"
 					
 /*************************************************************************
-Creates the default clustered index for a table: the records are ordered
-by row id. */
-
-void
-dict_create_default_index(
-/*======================*/
-	dict_table_t*	table,	/* in: table */
-	trx_t*		trx);	/* in: transaction handle */
-/*************************************************************************
 Creates a table create graph. */
 
 tab_node_t*
diff --git a/innobase/include/dict0dict.h b/innobase/include/dict0dict.h
index 7d55521f228..be5d3b5b465 100644
--- a/innobase/include/dict0dict.h
+++ b/innobase/include/dict0dict.h
@@ -658,13 +658,6 @@ dict_index_get_tree(
 				/* out: index tree */
 	dict_index_t*	index);	/* in: index */
 /*************************************************************************
-Gets the column data type. */
-UNIV_INLINE
-dtype_t*
-dict_col_get_type(
-/*==============*/
-	dict_col_t*	col);
-/*************************************************************************
 Gets the field order criterion. */
 UNIV_INLINE
 ulint
diff --git a/innobase/include/ibuf0ibuf.h b/innobase/include/ibuf0ibuf.h
index a290e90e4db..a64eb53bd19 100644
--- a/innobase/include/ibuf0ibuf.h
+++ b/innobase/include/ibuf0ibuf.h
@@ -170,15 +170,6 @@ ibuf_page_low(
 	mtr_t*	mtr);	/* in: mtr which will contain an x-latch to the
 			bitmap page if the page is not one of the fixed
 			address ibuf pages */
-/*************************************************************************
-Checks if an index page has so much free space that the free bit should
-be set TRUE in the ibuf bitmap. */
-
-ibool
-ibuf_index_page_has_free(
-/*=====================*/
-			/* out: TRUE if there is enough free space */
-	page_t*	page);	/* in: non-unique secondary index page */
 /***************************************************************************
 Frees excess pages from the ibuf free list. This function is called when an OS
 thread calls fsp services to allocate a new file segment, or a new page to a
diff --git a/innobase/include/lock0lock.h b/innobase/include/lock0lock.h
index 5608ba020b7..0fd1696b882 100644
--- a/innobase/include/lock0lock.h
+++ b/innobase/include/lock0lock.h
@@ -442,14 +442,6 @@ lock_rec_hash(
 	ulint	space,	/* in: space */
 	ulint	page_no);/* in: page number */
 /*************************************************************************
-Gets the mutex protecting record locks on a given page address. */
-
-mutex_t*
-lock_rec_get_mutex_for_addr(
-/*========================*/
-	ulint	space,	/* in: space id */
-	ulint	page_no);/* in: page number */
-/*************************************************************************
 Checks that a transaction id is sensible, i.e., not in the future. */
 
 ibool
diff --git a/innobase/include/mem0dbg.h b/innobase/include/mem0dbg.h
index 0b1aa53d694..6c92d669be3 100644
--- a/innobase/include/mem0dbg.h
+++ b/innobase/include/mem0dbg.h
@@ -60,6 +60,7 @@ mem_heap_validate_or_print(
 	ulint*          n_blocks); /* out: number of blocks in the heap,
 				if a NULL pointer is passed as this
 				argument, it is ignored */
+#ifdef UNIV_MEM_DEBUG
 /******************************************************************
 Prints the contents of a memory heap. */
 
@@ -67,6 +68,7 @@ void
 mem_heap_print(
 /*===========*/
 	mem_heap_t*   heap);	/* in: memory heap */
+#endif /* UNIV_MEM_DEBUG */
 /******************************************************************
 Checks that an object is a memory heap (or a block of it) */
 
@@ -83,20 +85,7 @@ mem_heap_validate(
 /*==============*/
 				/* out: TRUE if ok */
 	mem_heap_t*   heap);	/* in: memory heap */
-/*********************************************************************
-Prints information of dynamic memory usage and currently live
-memory heaps or buffers. Can only be used in the debug version. */
-
-void
-mem_print_info(void);
-/*=================*/
-/*********************************************************************
-Prints information of dynamic memory usage and currently allocated memory
-heaps or buffers since the last ..._print_info or..._print_new_info. */
-
-void
-mem_print_new_info(void);
-/*====================*/
+#ifdef UNIV_MEM_DEBUG
 /*********************************************************************
 TRUE if no memory is currently allocated. */
 
@@ -118,6 +107,7 @@ ibool
 mem_validate(void);
 /*===============*/
 			/* out: TRUE if ok */
+#endif /* UNIV_MEM_DEBUG */
 /****************************************************************
 Tries to find neigboring memory allocation blocks and dumps to stderr
 the neighborhood of a given pointer. */
diff --git a/innobase/include/mem0mem.ic b/innobase/include/mem0mem.ic
index e863fe41c4b..fb4cef49ec9 100644
--- a/innobase/include/mem0mem.ic
+++ b/innobase/include/mem0mem.ic
@@ -493,18 +493,6 @@ mem_alloc_func(
 	ulint   line		/* in: line where created */
 	)
 {
-#ifdef notdefined
-	void* buf;
-
-	buf = mem_area_alloc(n, mem_comm_pool);
-
-#ifdef UNIV_SET_MEM_TO_ZERO
-	memset(buf, '\0', n);
-#endif
-	return(buf);
-	
-#else
-	
 	mem_heap_t*   	heap; 
 	void*           buf;
 
@@ -525,8 +513,6 @@ mem_alloc_func(
 	ut_a((byte*)heap == (byte*)buf - MEM_BLOCK_HEADER_SIZE
 					- MEM_FIELD_HEADER_SIZE);
 	return(buf);
-
-#endif
 }
 
 /*******************************************************************
@@ -542,17 +528,11 @@ mem_free_func(
 	ulint   line            /* in: line where created */
 	)
 {
-#ifdef notdefined
-
-	mem_area_free(ptr, mem_comm_pool);
-       
-#else
 	mem_heap_t*   heap; 
 
 	heap = (mem_heap_t*)((byte*)ptr - MEM_BLOCK_HEADER_SIZE
 				 		- MEM_FIELD_HEADER_SIZE);
 	mem_heap_free_func(heap, file_name, line);
-#endif
 }
 
 /*********************************************************************
diff --git a/innobase/include/mtr0log.h b/innobase/include/mtr0log.h
index acbf87df447..d7de6feb94d 100644
--- a/innobase/include/mtr0log.h
+++ b/innobase/include/mtr0log.h
@@ -120,15 +120,6 @@ mlog_write_initial_log_record_fast(
 	byte	type,	/* in: log item type: MLOG_1BYTE, ... */
 	byte*	log_ptr,/* in: pointer to mtr log which has been opened */
 	mtr_t*	mtr);	/* in: mtr */
-/****************************************************************
-Writes the contents of a mini-transaction log, if any, to the database log. */
-
-dulint
-mlog_write(
-/*=======*/
-	dyn_array_t*	mlog,		/* in: mlog */
-	ibool*		modifications);	/* out: TRUE if there were 
-					log items to write */
 /************************************************************
 Parses an initial log record written by mlog_write_initial_log_record. */
 
diff --git a/innobase/include/mtr0mtr.h b/innobase/include/mtr0mtr.h
index 0ef25b3d1ee..86b7c3345ff 100644
--- a/innobase/include/mtr0mtr.h
+++ b/innobase/include/mtr0mtr.h
@@ -126,16 +126,6 @@ void
 mtr_commit(
 /*=======*/
 	mtr_t*	mtr);	/* in: mini-transaction */
-/****************************************************************
-Writes to the database log the full contents of the pages that this mtr is
-the first to modify in the buffer pool. This function is called when the
-database is in the online backup state. */
-
-void
-mtr_log_write_backup_entries(
-/*=========================*/
-	mtr_t*	mtr,		/* in: mini-transaction */
-	dulint	backup_lsn);	/* in: online backup lsn */
 /**************************************************************
 Sets and returns a savepoint in mtr. */
 UNIV_INLINE
diff --git a/innobase/include/os0proc.h b/innobase/include/os0proc.h
index 79750e5c1f7..7618032a11f 100644
--- a/innobase/include/os0proc.h
+++ b/innobase/include/os0proc.h
@@ -32,37 +32,6 @@ os_mem_alloc_nocache(
 /*=================*/
 			/* out: allocated memory */
 	ulint	n);	/* in: number of bytes */
-#ifdef notdefined
-/********************************************************************
-Creates a new process. */
-
-ibool
-os_process_create(
-/*==============*/
-	char*		name,	/* in: name of the executable to start
-				or its full path name */
-	char*		cmd,	/* in: command line for the starting
-				process, or NULL if no command line
-				specified */
-	os_process_t*	proc,	/* out: handle to the process */
-	os_process_id_t* id);	/* out: process id */
-/**************************************************************************
-Exits a process. */
-
-void
-os_process_exit(
-/*============*/
-	ulint	code);	/* in: exit code */
-/**************************************************************************
-Gets process exit code. */
-
-ibool
-os_process_get_exit_code(
-/*=====================*/
-				/* out: TRUE if succeed, FALSE if fail */
-	os_process_t	proc,	/* in: handle to the process */
-	ulint*		code);	/* out: exit code */
-#endif
 /********************************************************************
 Sets the priority boost for threads released from waiting within the current
 process. */
diff --git a/innobase/include/os0thread.h b/innobase/include/os0thread.h
index 554ca0563e4..6603229e524 100644
--- a/innobase/include/os0thread.h
+++ b/innobase/include/os0thread.h
@@ -99,13 +99,6 @@ os_thread_t
 os_thread_get_curr(void);
 /*====================*/
 /*********************************************************************
-Waits for a thread to terminate. */
-
-void
-os_thread_wait(
-/*===========*/
-	os_thread_t	thread);	/* in: thread to wait */
-/*********************************************************************
 Advises the os to give up remainder of the thread's time slice. */
 
 void
diff --git a/innobase/include/rem0cmp.ic b/innobase/include/rem0cmp.ic
index ebf513f538c..75cb3ef04e8 100644
--- a/innobase/include/rem0cmp.ic
+++ b/innobase/include/rem0cmp.ic
@@ -9,24 +9,6 @@ Created 7/1/1994 Heikki Tuuri
 /*****************************************************************
 This function is used to compare two data fields for which we know the
 data type. */
-
-int
-cmp_data_data_slow(
-/*===============*/	
-				/* out: 1, 0, -1, if data1 is greater, equal, 
-				less than data2, respectively */
-	dtype_t*	cur_type,/* in: data type of the fields */
-	byte*		data1,	/* in: data field (== a pointer to a memory
-				buffer) */
-	ulint		len1,	/* in: data field length or UNIV_SQL_NULL */
-	byte*		data2,	/* in: data field (== a pointer to a memory
-				buffer) */
-	ulint		len2);	/* in: data field length or UNIV_SQL_NULL */
-
-
-/*****************************************************************
-This function is used to compare two data fields for which we know the
-data type. */
 UNIV_INLINE
 int
 cmp_data_data(
diff --git a/innobase/include/row0row.h b/innobase/include/row0row.h
index d1befbbbad3..3956f3c1692 100644
--- a/innobase/include/row0row.h
+++ b/innobase/include/row0row.h
@@ -68,16 +68,6 @@ row_build_index_entry(
 	dict_index_t*	index, 	/* in: index on the table */
 	mem_heap_t*	heap);	/* in: memory heap from which the memory for
 				the index entry is allocated */
-/*********************************************************************
-Builds an index entry from a row. */
-
-void
-row_build_index_entry_to_tuple(
-/*===========================*/
-	dtuple_t*	entry,	/* in/out: index entry; the dtuple must have
-				enough fields for the index! */
-	dtuple_t*	row, 	/* in: row */
-	dict_index_t*	index); /* in: index on the table */
 /***********************************************************************
 An inverse function to dict_row_build_index_entry. Builds a row from a
 record in a clustered index. */
@@ -103,21 +93,6 @@ row_build(
 	mem_heap_t*	heap);	/* in: memory heap from which the memory
 				needed is allocated */
 /***********************************************************************
-An inverse function to dict_row_build_index_entry. Builds a row from a
-record in a clustered index. */
-
-void
-row_build_to_tuple(
-/*===============*/
-	dtuple_t*	row,	/* in/out: row built; see the NOTE below! */
-	dict_index_t*	index,	/* in: clustered index */
-	rec_t*		rec);	/* in: record in the clustered index;
-				NOTE: the data fields in the row will point
-				directly into this record, therefore,
-				the buffer page of this record must be
-				at least s-latched and the latch held
-				as long as the row dtuple is used! */
-/***********************************************************************
 Converts an index record to a typed data tuple. */
 
 dtuple_t*
diff --git a/innobase/include/srv0srv.h b/innobase/include/srv0srv.h
index 02d3d3bba0a..e16691e03c3 100644
--- a/innobase/include/srv0srv.h
+++ b/innobase/include/srv0srv.h
@@ -209,13 +209,7 @@ srv_boot(void);
 /*==========*/
 			/* out: DB_SUCCESS or error code */
 /*************************************************************************
-Initializes the server. */
-
-void
-srv_init(void);
-/*==========*/
-/*************************************************************************
-Frees the OS fast mutex created in srv_init(). */
+Frees the OS fast mutex created in srv_boot(). */
 
 void
 srv_free(void);
@@ -265,23 +259,6 @@ srv_master_thread(
 			/* out: a dummy parameter */
 	void*	arg);	/* in: a dummy parameter required by
 			os_thread_create */
-/*************************************************************************
-Reads a keyword and a value from a file. */
-
-ulint
-srv_read_init_val(
-/*==============*/
-				/* out: DB_SUCCESS or error code */
-	FILE*	initfile,	/* in: file pointer */
-	char*	keyword,	/* in: keyword before value(s), or NULL if
-				no keyword read */
-	char*	str_buf,	/* in/out: buffer for a string value to read,
-				buffer size must be 10000 bytes, if NULL
-				then not read */
-	ulint*	num_val,	/* out:	numerical value to read, if NULL
-				then not read */
-	ibool	print_not_err);	/* in: if TRUE, then we will not print
-				error messages to console */
 /***********************************************************************
 Tells the Innobase server that there has been activity in the database
 and wakes up the master thread if it is suspended (not sleeping). Used
diff --git a/innobase/include/sync0sync.h b/innobase/include/sync0sync.h
index 320f8faf12d..71263f5d136 100644
--- a/innobase/include/sync0sync.h
+++ b/innobase/include/sync0sync.h
@@ -234,15 +234,6 @@ mutex_get_waiters(
 /*==============*/
 				/* out: value to set */		
 	mutex_t*	mutex);	/* in: mutex */
-/**********************************************************************
-Implements the memory barrier operation which makes a serialization point to
-the instruction flow. This is needed because the Pentium may speculatively
-execute reads before preceding writes are committed. We could also use here
-any LOCKed instruction (see Intel Software Dev. Manual, Vol. 3). */
-
-void
-mutex_fence(void);
-/*=============*/
 
 /*
 		LATCHING ORDER WITHIN THE DATABASE