branches/zip: Replace buf_frame_alloc() and buf_frame_free()

with buf_block_alloc() and buf_block_free(), in order to
avoid buf_block_align() calls.

btr/btr0btr.c

@@ -851,6 +851,7 @@ btr_page_reorganize_low(
 	mtr_t*		mtr)	/* in: mtr */
 {
 	buf_block_t*	block;
+	buf_block_t*	temp_block;
 	page_t*		temp_page;
 	ulint		log_mode;
 	ulint		data_size1;
@@ -876,7 +877,8 @@ btr_page_reorganize_low(
 	/* Turn logging off */
 	log_mode = mtr_set_log_mode(mtr, MTR_LOG_NONE);
 
-	temp_page = buf_frame_alloc();
+	temp_block = buf_block_alloc(0);
+	temp_page = temp_block->frame;
 
 	/* Copy the old page to temporary space */
 	buf_frame_copy(temp_page, page);
@@ -940,7 +942,7 @@ func_exit:
 #ifdef UNIV_ZIP_DEBUG
 	ut_a(!page_zip || page_zip_validate(page_zip, page));
 #endif /* UNIV_ZIP_DEBUG */
-	buf_frame_free(temp_page);
+	buf_block_free(temp_block);
 
 	/* Restore logging mode */
 	mtr_set_log_mode(mtr, log_mode);

btr/btr0sea.c

@@ -91,7 +91,6 @@ void
 btr_search_check_free_space_in_heap(void)
 /*=====================================*/
 {
-	buf_frame_t*	frame;
 	hash_table_t*	table;
 	mem_heap_t*	heap;
 
@@ -109,14 +108,14 @@ btr_search_check_free_space_in_heap(void)
 	be enough free space in the hash table. */
 
 	if (heap->free_block == NULL) {
-		frame = buf_frame_alloc();
+		buf_block_t*	block = buf_block_alloc(0);
 
 		rw_lock_x_lock(&btr_search_latch);
 
 		if (heap->free_block == NULL) {
-			heap->free_block = frame;
+			heap->free_block = block;
 		} else {
-			buf_frame_free(frame);
+			buf_block_free(block);
 		}
 
 		rw_lock_x_unlock(&btr_search_latch);

include/buf0buf.h

@@ -127,20 +127,6 @@ buf_block_free(
 /*===========*/
 	buf_block_t*	block);	/* in, own: block to be freed */
 /*************************************************************************
-Allocates a buffer frame. */
-UNIV_INLINE
-buf_frame_t*
-buf_frame_alloc(void);
-/*==================*/
-				/* out: buffer frame */
-/*************************************************************************
-Frees a buffer frame which does not contain a file page. */
-UNIV_INLINE
-void
-buf_frame_free(
-/*===========*/
-	buf_frame_t*	frame);	/* in: buffer frame */
-/*************************************************************************
 Copies contents of a buffer frame to a given buffer. */
 UNIV_INLINE
 byte*

include/buf0buf.ic

@@ -364,28 +364,6 @@ buf_block_free(
 	mutex_exit(&(buf_pool->mutex));
 }
 
-/*************************************************************************
-Allocates a buffer frame. */
-UNIV_INLINE
-buf_frame_t*
-buf_frame_alloc(void)
-/*=================*/
-				/* out: buffer frame */
-{
-	return(buf_block_alloc(0)->frame);
-}
-
-/*************************************************************************
-Frees a buffer frame which does not contain a file page. */
-UNIV_INLINE
-void
-buf_frame_free(
-/*===========*/
-	buf_frame_t*	frame)	/* in: buffer frame */
-{
-	buf_block_free(buf_block_align(frame));
-}
-
 /*************************************************************************
 Copies contents of a buffer frame to a given buffer. */
 UNIV_INLINE

include/mem0mem.h

@@ -395,12 +395,16 @@ struct mem_block_info_struct {
 			user data in the block */
 	ulint	start;	/* the value of the struct field 'free' at the
 			creation of the block */
-	byte*	free_block;
+	void*	free_block;
 			/* if the MEM_HEAP_BTR_SEARCH bit is set in type,
 			and this is the heap root, this can contain an
 			allocated buffer frame, which can be appended as a
 			free block to the heap, if we need more space;
 			otherwise, this is NULL */
+	void*	buf_block;
+			/* if this block has been allocated from the buffer
+			pool, this contains the buf_block_t handle;
+			otherwise, this is NULL */
 #ifdef MEM_PERIODIC_CHECK
 	UT_LIST_NODE_T(mem_block_t) mem_block_list;
 			/* List of all mem blocks allocated; protected

mem/mem0mem.c

@@ -338,6 +338,7 @@ mem_heap_create_block(
 	const char*	file_name,/* in: file name where created */
 	ulint		line)	/* in: line where created */
 {
+	buf_block_t*	buf_block = NULL;
 	mem_block_t*	block;
 	ulint		len;
 
@@ -376,10 +377,13 @@ mem_heap_create_block(
 				buffer pool, but must get the free block from
 				the heap header free block field */
 
-				block = (mem_block_t*)heap->free_block;
+				block = (mem_block_t*)
+					((buf_block_t*) heap->free_block)
+					->frame;
 				heap->free_block = NULL;
 			} else {
-				block = (mem_block_t*)buf_frame_alloc();
+				buf_block = buf_block_alloc(0);
+				block = (mem_block_t*) buf_block->frame;
 			}
 		}
 	}
@@ -391,6 +395,7 @@ mem_heap_create_block(
 		return(NULL);
 	}
 
+	block->buf_block = buf_block;
 	block->magic_n = MEM_BLOCK_MAGIC_N;
 	ut_strlcpy_rev(block->file_name, file_name, sizeof(block->file_name));
 	block->line = line;
@@ -520,13 +525,15 @@ mem_heap_block_free(
 
 	} else if (type == MEM_HEAP_DYNAMIC) {
 
+		ut_ad(!block->buf_block);
 		mem_area_free(block, mem_comm_pool);
 	} else {
 		ut_ad(type & MEM_HEAP_BUFFER);
 
 		if (len >= UNIV_PAGE_SIZE / 2) {
-			buf_frame_free((byte*)block);
+			buf_block_free(block->buf_block);
 		} else {
+			ut_ad(!block->buf_block);
 			mem_area_free(block, mem_comm_pool);
 		}
 	}
@@ -540,9 +547,9 @@ mem_heap_free_block_free(
 /*=====================*/
 	mem_heap_t*	heap)	/* in: heap */
 {
-	if (heap->free_block) {
+	if (UNIV_LIKELY_NULL(heap->free_block)) {
 
-		buf_frame_free(heap->free_block);
+		buf_block_free(heap->free_block);
 
 		heap->free_block = NULL;
 	}

page/page0zip.c

@@ -3511,6 +3511,7 @@ page_zip_reorganize(
 	mtr_t*		mtr)	/* in: mini-transaction */
 {
 	buf_block_t*	block;
+	buf_block_t*	temp_block;
 	page_t*		temp_page;
 	ulint		log_mode;
 
@@ -3521,7 +3522,8 @@ page_zip_reorganize(
 	/* Disable logging */
 	log_mode = mtr_set_log_mode(mtr, MTR_LOG_NONE);
 
-	temp_page = buf_frame_alloc();
+	temp_block = buf_block_alloc(0);
+	temp_page = temp_block->frame;
 
 	/* Copy the old page to temporary space */
 	buf_frame_copy(temp_page, page);
@@ -3549,14 +3551,14 @@ page_zip_reorganize(
 		/* Restore the old page and exit. */
 		buf_frame_copy(page, temp_page);
 
-		buf_frame_free(temp_page);
+		buf_block_free(temp_block);
 		return(FALSE);
 	}
 
 	lock_move_reorganize_page(page, temp_page);
 	btr_search_drop_page_hash_index(block);
 
-	buf_frame_free(temp_page);
+	buf_block_free(temp_block);
 	return(TRUE);
 }