branches/zip:

Fix bugs found during testing.

btr/btr0btr.c

@@ -1101,7 +1101,8 @@ btr_root_raise_and_insert(
 
 	btr_set_min_rec_mark(node_ptr_rec, NULL, mtr);
 		
-	if (!UNIV_UNLIKELY(page_zip_compress(page_zip, root))) {
+	if (UNIV_LIKELY_NULL(page_zip)
+	    && !UNIV_UNLIKELY(page_zip_compress(page_zip, root))) {
 		/* The root page should only contain the
 		node pointer to new_page at this point.
 		Thus, the data should fit. */

btr/btr0cur.c

@@ -1518,7 +1518,9 @@ btr_cur_update_in_place(
 	block = buf_block_align(rec);
 
 	page_zip = buf_block_get_page_zip(block);
-	if (UNIV_UNLIKELY(!page_zip_alloc(page_zip, buf_block_get_frame(block),
+	if (UNIV_LIKELY_NULL(page_zip)
+	    && UNIV_UNLIKELY(!page_zip_alloc(page_zip,
+					buf_block_get_frame(block),
 					4 + rec_offs_size(offsets)))) {
 		return(DB_OVERFLOW);
 	}

include/page0page.ic

@@ -653,7 +653,12 @@ page_rec_set_next(
 	ut_ad(!next || ut_align_down(rec, UNIV_PAGE_SIZE)
 			== ut_align_down(next, UNIV_PAGE_SIZE));
 
+	if (UNIV_LIKELY(next != NULL)) {
 		offs = ut_align_offset(next, UNIV_PAGE_SIZE);
+	} else {
+		offs = 0;
+	}
+
 	if (page_rec_is_comp(rec)) {
 		rec_set_next_offs_new(rec, page_zip, offs);
 	} else {

include/page0zip.ic

@@ -213,7 +213,7 @@ page_zip_write_trailer(
 
 	ut_ad(pos > PAGE_DATA);
 	ut_ad(pos < UNIV_PAGE_SIZE
-			- page_trailer_get_len(buf_block_align((byte*) str)));
+			- page_trailer_get_len(buf_frame_align((byte*) str)));
 
 	memcpy(page_zip->data + page_zip->size - (UNIV_PAGE_SIZE - pos),
 			str, length);