Test using extsize to create a file with multiple extent in one
PAGE. This show an error in the block conversion from unwritten
to real. As a result we tag raw disk block as valid(3-4) and
valid data as unwritten(5-6)
On an x86_64 machine the page should look like this.
buffer content
0 empty b_state = 0
1 DATA b_state = 0x1023
2 DATA b_state = 0x1023
3 empty b_state = 0
4 empty b_state = 0
5 DATA b_state = 0x1023
6 DATA b_state = 0x1023
7 empty b_state = 0
Signed-off-by: Alain Renaud <arenaud@xxxxxxx>
---
.gitignore | 1 1 + 0 - 0 !
287 | 74 74 + 0 - 0 !
287.out | 1 1 + 0 - 0 !
group | 1 1 + 0 - 0 !
src/Makefile | 2 1 + 1 - 0 !
src/extsize_page.c | 113 113 + 0 - 0 !
6 files changed, 191 insertions(+), 1 deletion(-)
create mode 100755 287
create mode 100644 287.out
create mode 100644 src/extsize_page.c
Index: b/.gitignore
===================================================================
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@
src/dirperf
src/dirstress
src/dmiperf
+src/extsize_page
src/fault
src/feature
src/fiemap-tester
Index: b/287
===================================================================
--- /dev/null
+++ b/287
@@ -0,0 +1,74 @@
+#! /bin/bash
+# FS QA Test No. 287
+#
+# File coruption with multi extent in one page.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2012 SGI. All Rights Reserved.
+#
+# 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 Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#-----------------------------------------------------------------------
+#
+# creator
+owner=arenaud@xxxxxxx
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.dump
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os Linux
+
+_require_scratch
+
+_scratch_mkfs_xfs -b size=512 >> $seq.full 2>&1
+_scratch_mount
+
+TDIR=${SCRATCH_MNT}/testdir
+PAGE=$(getconf PAGE_SIZE)
+mkdir ${TDIR}
+
+# Create the template file to compare with.
+$here/src/extsize_page ${PAGE} 512 1 ${TDIR}/template
+
+# Create test file and compare to template.
+for i in $(seq -w 0 20)
+do
+ $here/src/extsize_page ${PAGE} 512 0 ${TDIR}/zfile-${i}
+ # clean FS cache
+ _scratch_unmount
+ _scratch_mount
+ if ! cmp ${TDIR}/template ${TDIR}/zfile-${i}
+ then
+ echo "ERROR: compare failed"
+ xfs_bmap -vp ${TDIR}/zfile-${i}
+ hexdump -c ${TDIR}/zfile-${i}
+ status=1
+ exit 1
+ fi
+done
+
+# success, all done
+status=0
+exit
Index: b/287.out
===================================================================
--- /dev/null
+++ b/287.out
@@ -0,0 +1 @@
+QA output created by 287
Index: b/group
===================================================================
--- a/group
+++ b/group
@@ -405,3 +405,4 @@
284 auto
285 auto rw
286 other
+287 auto rw
Index: b/src/Makefile
===================================================================
--- a/src/Makefile
+++ b/src/Makefile
@@ -18,7 +18,7 @@
locktest unwritten_mmap bulkstat_unlink_test t_stripealign \
bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \
stale_handle pwrite_mmap_blocked fstrim t_dir_offset2 seek_sanity_test \
- seek_copy_test
+ seek_copy_test extsize_page
SUBDIRS =
Index: b/src/extsize_page.c
===================================================================
--- /dev/null
+++ b/src/extsize_page.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2012 SGI.
+ * All rights reserved.
+ *
+ * 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 Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Tested on a 86_64 node with filesystem blocksize of 512
+ *
+ *meta-data=/dev/sdb1 isize=256 agcount=4, agsize=58609664 blks
+ * = sectsz=512 attr=2
+ *data = bsize=512 blocks=234438656, imaxpct=25
+ * = sunit=0 swidth=0 blks
+ *naming =version 2 bsize=512 ascii-ci=0
+ *log =internal bsize=512 blocks=114472, version=2
+ * = sectsz=512 sunit=0 blks, lazy-count=0
+ *realtime =none extsz=4096 blocks=0, rtextents=0
+ *
+ *
+ * PAGE 1 will look like this.
+ * block content
+ * 0 empty
+ * 1 B
+ * 2 B
+ * 3 empty
+ * 4 empty
+ * 5 C
+ * 6 C
+ * 7 empty
+ */
+#include <sys/file.h>
+#include <sys/types.h>
+#include <xfs/xfs.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int
+main(int argc, char **argv)
+{
+ int fd;
+ int pagesz, blocksz, template;
+ char *pathname;
+ char buf[65536];
+
+ if ( argc != 5 ) {
+ printf("usage: %s <pagesz> <blocksz> <flag> <file>\n",argv[0]);
+ exit(1);
+ }
+ pagesz = atoi(argv[1]);
+ blocksz = atoi(argv[2]);
+ template = atoi(argv[3]);
+ pathname = argv[4];
+
+ if ( pagesz <= blocksz || ((pagesz % pagesz) != 0)) {
+ printf("Error invalid page/block size combination\n");
+ exit(1);
+ }
+
+ fd = open(pathname,O_RDWR|O_CREAT|O_TRUNC,0666);
+ if (fd < 0) {
+ perror("open");
+ exit(1);
+ }
+
+ if (!template) {
+ /* set the XFS_XFLAG_EXTSIZE on the file */
+ struct fsxattr fattr;
+ memset(&fattr,0,sizeof(fattr));
+ fattr.fsx_extsize = pagesz*10;
+ fattr.fsx_xflags = XFS_XFLAG_EXTSIZE;
+
+ if (ioctl( fd, XFS_IOC_FSSETXATTR, &fattr) < 0) {
+ perror("Ioctl");
+ exit(1);
+ }
+ }
+
+ /* goto page 1 block 1 */
+ lseek(fd, (pagesz * 1) + (blocksz * 1), SEEK_SET);
+
+ /* write 'B' in page 1 block 1 and 2 */
+ memset(buf,'B',65536);
+ write(fd, buf, blocksz * 2);
+
+ /* goto page 1 block 5 */
+ lseek(fd, (pagesz * 1) + (blocksz * 5), SEEK_SET);
+
+ /* write 'C' in page 1 block 5 and 6 */
+ memset(buf,'C',65536);
+ write(fd, buf, blocksz * 2);
+
+ /* move eof after end of page 1 */
+ ftruncate(fd, pagesz * 3);
+ close(fd);
+
+ exit(0);
+}
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