Fix some compilation warnings.

storage/innobase/include/os0file.h

@@ -426,15 +426,12 @@ class IORequest {
 		}
 	}
 
-	/** Punch a hole in the file if it was a write
+	/** Free storage space associated with a section of the file.
 	@param[in]	fh		Open file handle
-	@param[in]	len		Compressed buffer length for write
+	@param[in]	off		Starting offset (SEEK_SET)
+	@param[in]	len		Size of the hole
 	@return DB_SUCCESS or error code */
-
-	dberr_t punch_hole(
-		os_file_t	fh,
-		os_offset_t	offset,
-		os_offset_t	len);
+	dberr_t punch_hole(os_file_t fh, os_offset_t off, ulint len);
 
 private:
 	/** Page to be written on write operation. */

storage/innobase/include/row0sel.h

 /*****************************************************************************
 
 Copyright (c) 1997, 2016, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 2017, MariaDB Corporation.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -223,8 +224,8 @@ row_count_rtree_recs(
 /*******************************************************************//**
 Checks if MySQL at the moment is allowed for this table to retrieve a
 consistent read result, or store it to the query cache.
-@return TRUE if storing or retrieving from the query cache is permitted */
-ibool
+@return whether storing or retrieving from the query cache is permitted */
+bool
 row_search_check_if_query_cache_permitted(
 /*======================================*/
 	trx_t*		trx,		/*!< in: transaction object */

storage/innobase/log/log0recv.cc

@@ -2726,18 +2726,16 @@ recv_scan_log_recs(
 					stored to the hash table; this is reset
 					if just debug checking is needed, or
 					when the available_memory runs out */
-	const byte*	buf,		/*!< in: buffer containing a log
-					segment or garbage */
-	ulint		len,		/*!< in: buffer length */
+	const byte*	log_block,	/*!< in: log segment */
 	lsn_t		checkpoint_lsn,	/*!< in: latest checkpoint LSN */
-	lsn_t		start_lsn,	/*!< in: buffer start lsn */
+	lsn_t		start_lsn,	/*!< in: buffer start LSN */
+	lsn_t		end_lsn,	/*!< in: buffer end LSN */
 	lsn_t*		contiguous_lsn,	/*!< in/out: it is known that all log
 					groups contain contiguous log data up
 					to this lsn */
 	lsn_t*		group_scanned_lsn)/*!< out: scanning succeeded up to
 					this lsn */
 {
-	const byte*	log_block	= buf;
 	lsn_t		scanned_lsn	= start_lsn;
 	bool		finished	= false;
 	ulint		data_len;
@@ -2745,8 +2743,11 @@ recv_scan_log_recs(
 	bool		apply		= recv_sys->mlog_checkpoint_lsn != 0;
 
 	ut_ad(start_lsn % OS_FILE_LOG_BLOCK_SIZE == 0);
-	ut_ad(len % OS_FILE_LOG_BLOCK_SIZE == 0);
-	ut_ad(len >= OS_FILE_LOG_BLOCK_SIZE);
+	ut_ad(end_lsn % OS_FILE_LOG_BLOCK_SIZE == 0);
+	ut_ad(end_lsn >= start_lsn + OS_FILE_LOG_BLOCK_SIZE);
+
+	const byte* const	log_end = log_block
+		+ ulint(end_lsn - start_lsn);
 
 	do {
 		ut_ad(!finished);
@@ -2842,7 +2843,7 @@ recv_scan_log_recs(
 		} else {
 			log_block += OS_FILE_LOG_BLOCK_SIZE;
 		}
-	} while (log_block < buf + len);
+	} while (log_block < log_end);
 
 	*group_scanned_lsn = scanned_lsn;
 
@@ -2938,9 +2939,9 @@ recv_group_scan_log_recs(
 	} while (end_lsn != start_lsn
 		 && !recv_scan_log_recs(
 			 available_mem, &store_to_hash, log_sys->buf,
-			 end_lsn - start_lsn,
 			 checkpoint_lsn,
-			 start_lsn, contiguous_lsn, &group->scanned_lsn));
+			 start_lsn, end_lsn,
+			 contiguous_lsn, &group->scanned_lsn));
 
 	if (recv_sys->found_corrupt_log || recv_sys->found_corrupt_fs) {
 		DBUG_RETURN(false);

storage/innobase/os/os0file.cc

@@ -1920,8 +1920,7 @@ LinuxAIOHandler::collect()
 
 				slot->err = slot->type.punch_hole(
 					slot->file,
-					slot->offset,
-					static_cast<os_offset_t>(slot->len));
+					slot->offset, slot->len);
 			} else {
 				slot->err = DB_SUCCESS;
 			}
@@ -4881,9 +4880,7 @@ os_file_io(
 			    && !type.is_log()
 			    && type.is_write()
 			    && type.punch_hole()) {
-				*err = type.punch_hole(file,
-					offset,
-					static_cast<os_offset_t>(n));
+				*err = type.punch_hole(file, offset, n);
 
 			} else {
 				*err = DB_SUCCESS;
@@ -5541,10 +5538,7 @@ os_file_punch_hole(
 @param[in]	len		Size of the hole
 @return DB_SUCCESS or error code */
 dberr_t
-IORequest::punch_hole(
-	os_file_t	fh,
-	os_offset_t	off,
-	os_offset_t	len)
+IORequest::punch_hole(os_file_t fh, os_offset_t off, ulint len)
 {
 	/* In this debugging mode, we act as if punch hole is supported,
 	and then skip any calls to actually punch a hole here.
@@ -5553,7 +5547,7 @@ IORequest::punch_hole(
 		return(DB_SUCCESS);
 	);
 
-	os_offset_t trim_len = static_cast<os_offset_t>(get_trim_length(len));
+	ulint trim_len = get_trim_length(len);
 
 	if (trim_len == 0) {
 		return(DB_SUCCESS);

storage/innobase/row/row0sel.cc

@@ -2,7 +2,7 @@
 
 Copyright (c) 1997, 2016, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, Google Inc.
-Copyright (c) 2015, MariaDB Corporation.
+Copyright (c) 2015, 2017, MariaDB Corporation.
 
 Portions of this file contain modifications contributed and copyrighted by
 Google, Inc. Those modifications are gratefully acknowledged and are described
@@ -3260,7 +3260,9 @@ row_sel_store_mysql_rec(
 			getting selected. The non-key virtual columns may
 			not be materialized and we should skip them. */
 			if (dfield_get_type(dfield)->mtype == DATA_MISSING) {
+#ifdef UNIV_DEBUG
 				ulint prefix;
+#endif /* UNIV_DEBUG */
 				ut_ad(prebuilt->m_read_virtual_key);
 
 				/* If it is part of index key the data should
@@ -5947,23 +5949,20 @@ row_count_rtree_recs(
 /*******************************************************************//**
 Checks if MySQL at the moment is allowed for this table to retrieve a
 consistent read result, or store it to the query cache.
-@return TRUE if storing or retrieving from the query cache is permitted */
-ibool
+@return whether storing or retrieving from the query cache is permitted */
+bool
 row_search_check_if_query_cache_permitted(
 /*======================================*/
 	trx_t*		trx,		/*!< in: transaction object */
 	const char*	norm_name)	/*!< in: concatenation of database name,
 					'/' char, table name */
 {
-	dict_table_t*	table;
-	ibool		ret	= FALSE;
-
-	table = dict_table_open_on_name(
+	dict_table_t*	table = dict_table_open_on_name(
 		norm_name, FALSE, FALSE, DICT_ERR_IGNORE_NONE);
 
 	if (table == NULL) {
 
-		return(FALSE);
+		return(false);
 	}
 
 	/* Start the transaction if it is not started yet */
@@ -5975,18 +5974,16 @@ row_search_check_if_query_cache_permitted(
 	read/write from/to the cache.
 
 	If a read view has not been created for the transaction then it doesn't
-	really matter what this transactin sees. If a read view was created
+	really matter what this transaction sees. If a read view was created
 	then the view low_limit_id is the max trx id that this transaction
 	saw at the time of the read view creation.  */
 
-	if (lock_table_get_n_locks(table) == 0
+	const bool ret = lock_table_get_n_locks(table) == 0
 		&& ((trx->id != 0 && trx->id >= table->query_cache_inv_id)
 		    || !MVCC::is_view_active(trx->read_view)
 		    || trx->read_view->low_limit_id()
-		>= table->query_cache_inv_id)) {
-
-		ret = TRUE;
-
+		    >= table->query_cache_inv_id);
+	if (ret) {
 		/* If the isolation level is high, assign a read view for the
 		transaction if it does not yet have one */