Merge mysql-5.1 to mysql-5.5.

storage/innobase/include/page0zip.ic

@@ -229,9 +229,7 @@ ibool
 page_zip_get_trailer_len(
 /*=====================*/
 	const page_zip_des_t*	page_zip,/*!< in: compressed page */
-	ibool			is_clust,/*!< in: TRUE if clustered index */
-	ulint*			entry_size)/*!< out: size of the uncompressed
-					portion of a user record */
+	ibool			is_clust)/*!< in: TRUE if clustered index */
 {
 	ulint	uncompressed_size;
 
@@ -250,10 +248,6 @@ page_zip_get_trailer_len(
 		ut_ad(!page_zip->n_blobs);
 	}
 
-	if (entry_size) {
-		*entry_size = uncompressed_size;
-	}
-
 	return((page_dir_get_n_heap(page_zip->data) - 2)
 	       * uncompressed_size
 	       + page_zip->n_blobs * BTR_EXTERN_FIELD_REF_SIZE);
@@ -270,11 +264,9 @@ page_zip_max_ins_size(
 	const page_zip_des_t*	page_zip,/*!< in: compressed page */
 	ibool			is_clust)/*!< in: TRUE if clustered index */
 {
-	ulint	uncompressed_size;
 	ulint	trailer_len;
 
-	trailer_len = page_zip_get_trailer_len(page_zip, is_clust,
-					       &uncompressed_size);
+	trailer_len = page_zip_get_trailer_len(page_zip, is_clust);
 
 	/* When a record is created, a pointer may be added to
 	the dense directory.
@@ -283,7 +275,7 @@ page_zip_max_ins_size(
 	Also the BLOB pointers will be allocated from there, but
 	we may as well count them in the length of the record. */
 
-	trailer_len += uncompressed_size;
+	trailer_len += PAGE_ZIP_DIR_SLOT_SIZE;
 
 	return((lint) page_zip_get_size(page_zip)
 	       - trailer_len - page_zip->m_end
@@ -303,13 +295,11 @@ page_zip_available(
 	ulint			create)	/*!< in: nonzero=add the record to
 					the heap */
 {
-	ulint	uncompressed_size;
 	ulint	trailer_len;
 
 	ut_ad(length > REC_N_NEW_EXTRA_BYTES);
 
-	trailer_len = page_zip_get_trailer_len(page_zip, is_clust,
-					       &uncompressed_size);
+	trailer_len = page_zip_get_trailer_len(page_zip, is_clust);
 
 	/* Subtract the fixed extra bytes and add the maximum
 	space needed for identifying the record (encoded heap_no). */
@@ -323,7 +313,7 @@ page_zip_available(
 		Also the BLOB pointers will be allocated from there, but
 		we may as well count them in the length of the record. */
 
-		trailer_len += uncompressed_size;
+		trailer_len += PAGE_ZIP_DIR_SLOT_SIZE;
 	}
 
 	return(UNIV_LIKELY(length

storage/innobase/page/page0zip.c

@@ -2271,13 +2271,12 @@ zlib_done:
 
 	if (UNIV_UNLIKELY
 	    (page_zip_get_trailer_len(page_zip,
-				      dict_index_is_clust(index), NULL)
+				      dict_index_is_clust(index))
 	     + page_zip->m_end >= page_zip_get_size(page_zip))) {
 		page_zip_fail(("page_zip_decompress_node_ptrs:"
 			       " %lu + %lu >= %lu, %lu\n",
 			       (ulong) page_zip_get_trailer_len(
-				       page_zip, dict_index_is_clust(index),
-				       NULL),
+				       page_zip, dict_index_is_clust(index)),
 			       (ulong) page_zip->m_end,
 			       (ulong) page_zip_get_size(page_zip),
 			       (ulong) dict_index_is_clust(index)));
@@ -2428,12 +2427,12 @@ zlib_done:
 		page_zip->m_nonempty = mod_log_ptr != d_stream->next_in;
 	}
 
-	if (UNIV_UNLIKELY(page_zip_get_trailer_len(page_zip, FALSE, NULL)
+	if (UNIV_UNLIKELY(page_zip_get_trailer_len(page_zip, FALSE)
 			  + page_zip->m_end >= page_zip_get_size(page_zip))) {
 
 		page_zip_fail(("page_zip_decompress_sec: %lu + %lu >= %lu\n",
 			       (ulong) page_zip_get_trailer_len(
-				       page_zip, FALSE, NULL),
+				       page_zip, FALSE),
 			       (ulong) page_zip->m_end,
 			       (ulong) page_zip_get_size(page_zip)));
 		return(FALSE);
@@ -2759,12 +2758,12 @@ zlib_done:
 		page_zip->m_nonempty = mod_log_ptr != d_stream->next_in;
 	}
 
-	if (UNIV_UNLIKELY(page_zip_get_trailer_len(page_zip, TRUE, NULL)
+	if (UNIV_UNLIKELY(page_zip_get_trailer_len(page_zip, TRUE)
 			  + page_zip->m_end >= page_zip_get_size(page_zip))) {
 
 		page_zip_fail(("page_zip_decompress_clust: %lu + %lu >= %lu\n",
 			       (ulong) page_zip_get_trailer_len(
-				       page_zip, TRUE, NULL),
+				       page_zip, TRUE),
 			       (ulong) page_zip->m_end,
 			       (ulong) page_zip_get_size(page_zip)));
 		return(FALSE);
@@ -4639,8 +4638,7 @@ page_zip_copy_recs(
 		memcpy(page_zip, src_zip, sizeof *page_zip);
 		page_zip->data = data;
 	}
-	ut_ad(page_zip_get_trailer_len(page_zip,
-				       dict_index_is_clust(index), NULL)
+	ut_ad(page_zip_get_trailer_len(page_zip, dict_index_is_clust(index))
 	      + page_zip->m_end < page_zip_get_size(page_zip));
 
 	if (!page_is_leaf(src)