Applying InnoDB snapshot

Detailed revision comments:

r6779 | marko | 2010-03-08 14:35:42 +0200 (Mon, 08 Mar 2010) | 6 lines
branches/zip: Fix IMPORT TABLESPACE of compressed tables.  Previously,
a wrong parameter was passed to buf_flush_init_for_writing().

fil_reset_too_high_lsns(): Set up page_zip and use it if needed.

rb://264, Issue #352

storage/innodb_plugin/ChangeLog

+2010-03-08	The InnoDB Team
+
+	* fil/fil0fil.c:
+	Fix ALTER TABLE ... IMPORT TABLESPACE of compressed tables.
+
 2010-03-03	The InnoDB Team
 
 	* handler/handler0alter.cc, innodb-index.result, innodb-index.test,

storage/innodb_plugin/fil/fil0fil.c

@@ -38,6 +38,7 @@ Created 10/25/1995 Heikki Tuuri
 #include "mtr0mtr.h"
 #include "mtr0log.h"
 #include "dict0dict.h"
+#include "page0page.h"
 #include "page0zip.h"
 #ifndef UNIV_HOTBACKUP
 # include "buf0lru.h"
@@ -2788,6 +2789,7 @@ fil_reset_too_high_lsns(
 	ib_int64_t	offset;
 	ulint		zip_size;
 	ibool		success;
+	page_zip_des_t	page_zip;
 
 	filepath = fil_make_ibd_name(name, FALSE);
 
@@ -2835,6 +2837,12 @@ fil_reset_too_high_lsns(
 	space_id = fsp_header_get_space_id(page);
 	zip_size = fsp_header_get_zip_size(page);
 
+	page_zip_des_init(&page_zip);
+	page_zip_set_size(&page_zip, zip_size);
+	if (zip_size) {
+		page_zip.data = page + UNIV_PAGE_SIZE;
+	}
+
 	ut_print_timestamp(stderr);
 	fprintf(stderr,
 		"  InnoDB: Flush lsn in the tablespace file %lu"
@@ -2869,20 +2877,23 @@ fil_reset_too_high_lsns(
 			/* We have to reset the lsn */
 
 			if (zip_size) {
-				memcpy(page + UNIV_PAGE_SIZE, page, zip_size);
+				memcpy(page_zip.data, page, zip_size);
 				buf_flush_init_for_writing(
-					page, page + UNIV_PAGE_SIZE,
-					current_lsn);
+					page, &page_zip, current_lsn);
+				success = os_file_write(
+					filepath, file, page_zip.data,
+					(ulint) offset & 0xFFFFFFFFUL,
+					(ulint) (offset >> 32), zip_size);
 			} else {
 				buf_flush_init_for_writing(
 					page, NULL, current_lsn);
+				success = os_file_write(
+					filepath, file, page,
+					(ulint)(offset & 0xFFFFFFFFUL),
+					(ulint)(offset >> 32),
+					UNIV_PAGE_SIZE);
 			}
-			success = os_file_write(filepath, file, page,
-						(ulint)(offset & 0xFFFFFFFFUL),
-						(ulint)(offset >> 32),
-						zip_size
-						? zip_size
-						: UNIV_PAGE_SIZE);
+
 			if (!success) {
 
 				goto func_exit;