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Message-ID: <20141117191039.GL10043@birch.djwong.org>
Date: Mon, 17 Nov 2014 11:10:39 -0800
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: Xiaoguang Wang <wangxg.fnst@...fujitsu.com>
Cc: linux-ext4@...r.kernel.org, tytso@....edu
Subject: [PATCH] tune2fs: disable csum verification before resizing inode
When we're turning on metadata checksumming /and/ resizing the inode
at the same time, disable checksum verification during the
resize_inode() call because the subroutines it calls will try to
verify the checksums (which have not yet been set), causing the
operation to fail unnecessarily.
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
misc/tune2fs.c | 7 +++-
tests/t_iexpand_mcsum/expect | 57 ++++++++++++++++++++++++++++++
tests/t_iexpand_mcsum/name | 1 +
tests/t_iexpand_mcsum/script | 80 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 144 insertions(+), 1 deletion(-)
create mode 100644 tests/t_iexpand_mcsum/expect
create mode 100644 tests/t_iexpand_mcsum/name
create mode 100644 tests/t_iexpand_mcsum/script
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index b510c49..f01b05b 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -2961,8 +2961,13 @@ retry_open:
* We want to update group descriptor also
* with the new free inode count
*/
+ if (rewrite_checksums)
+ fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
- if (resize_inode(fs, new_inode_size) == 0) {
+ retval = resize_inode(fs, new_inode_size);
+ if (rewrite_checksums)
+ fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (retval == 0) {
printf(_("Setting inode size %lu\n"),
new_inode_size);
rewrite_checksums = 1;
diff --git a/tests/t_iexpand_mcsum/expect b/tests/t_iexpand_mcsum/expect
new file mode 100644
index 0000000..2bebc9f
--- /dev/null
+++ b/tests/t_iexpand_mcsum/expect
@@ -0,0 +1,57 @@
+tune2fs test
+Creating filesystem with 786432 1k blocks and 98304 inodes
+Superblock backups stored on blocks:
+ 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409, 663553
+
+Allocating group tables: .....done
+Writing inode tables: .....done
+Creating journal (16384 blocks): done
+Creating 6334 huge file(s) with 117 blocks each: done
+Writing superblocks and filesystem accounting information: .....done
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
+tune2fs -I 256 -O metadata_csum test.img
+Setting inode size 256
+
+Please run e2fsck -D on the filesystem.
+
+Exit status is 0
+Backing up journal inode block information.
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 3A: Optimizing directories
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+
+
+Change in FS metadata:
+@@ -5 +5 @@
+-Filesystem features: has_journal ext_attr dir_index filetype extent 64bit sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
++Filesystem features: has_journal ext_attr dir_index filetype extent 64bit sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
+@@ -13 +13 @@
+-Free blocks: 16280
++Free blocks: 3958
+@@ -22 +22 @@
+-Inode blocks per group: 128
++Inode blocks per group: 256
+@@ -28 +28 @@
+-Inode size: 128
++Inode size: 256
+@@ -31,0 +32 @@
++Checksum type: crc32c
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
diff --git a/tests/t_iexpand_mcsum/name b/tests/t_iexpand_mcsum/name
new file mode 100644
index 0000000..e767715
--- /dev/null
+++ b/tests/t_iexpand_mcsum/name
@@ -0,0 +1 @@
+expand inodes and turn on metadata_csum
diff --git a/tests/t_iexpand_mcsum/script b/tests/t_iexpand_mcsum/script
new file mode 100644
index 0000000..cb424ed
--- /dev/null
+++ b/tests/t_iexpand_mcsum/script
@@ -0,0 +1,80 @@
+if test -x $RESIZE2FS_EXE -a -x $DEBUGFS_EXE; then
+
+FSCK_OPT=-fn
+OUT=$test_name.log
+EXP=$test_dir/expect
+CONF=$TMPFILE.conf
+
+#gzip -d < $EXP.gz > $EXP
+
+cat > $CONF << ENDL
+[fs_types]
+ ext4h = {
+ features = has_journal,extent,huge_file,uninit_bg,dir_nlink,extra_isize,sparse_super,filetype,dir_index,ext_attr,^resize_inode,^meta_bg,^flex_bg,^metadata_csum,64bit
+ blocksize = 1024
+ inode_size = 256
+ make_hugefiles = true
+ hugefiles_dir = /
+ hugefiles_slack = 16000K
+ hugefiles_name = aaaaa
+ hugefiles_digits = 4
+ hugefiles_size = 117K
+ zero_hugefiles = false
+ }
+ENDL
+
+echo "tune2fs test" > $OUT
+
+MKE2FS_CONFIG=$CONF $MKE2FS -F -T ext4h -I 128 $TMPFILE 786432 >> $OUT 2>&1
+rm -rf $CONF
+
+# dump and check
+($DUMPE2FS -h $TMPFILE; $DUMPE2FS -g $TMPFILE) 2>&1 | sed -f $cmd_dir/filter.sed -e '/^Checksum:.*/d' >> $OUT.before 2> /dev/null
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+# convert it
+echo "tune2fs -I 256 -O metadata_csum test.img" >> $OUT
+dd if=/dev/zero of=$TMPFILE conv=notrunc bs=1 count=1 seek=3221225471 2> /dev/null
+$TUNE2FS -I 256 -O metadata_csum $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+$FSCK -N test_filesys -y -f -D $TMPFILE >> $OUT 2>&1
+
+# dump and check
+($DUMPE2FS -h $TMPFILE; $DUMPE2FS -g $TMPFILE) 2>&1 | sed -f $cmd_dir/filter.sed -e '/^Checksum:.*/d' >> $OUT.after 2> /dev/null
+echo "Change in FS metadata:" >> $OUT
+diff -u0 $OUT.before $OUT.after | sed -e '/^---.*/d' -e '/^+++.*/d' >> $OUT
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+rm $TMPFILE
+
+#
+# Do the verification
+#
+
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" -e 's/test_filesys:.*//g' < $OUT > $OUT.new
+mv $OUT.new $OUT
+
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+rm $OUT.before $OUT.after
+
+unset IMAGE FSCK_OPT OUT EXP CONF
+
+else #if test -x $RESIZE2FS_EXE -a -x $DEBUGFS_EXE; then
+ echo "$test_name: $test_description: skipped"
+fi
+
--
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