Tests Btrfs filesystems with all possible metadata block sizes, by
setting large extended attributes on files.
Signed-off-by: Koen De Wit <koen.de....@oracle.com>
---
v1->v2:
- Fix indentation: 8 spaces instead of 4
- Move _scratch_unmount to end of loop, add _check_scratch_fs
- Sending failure messages of mkfs.btrfs to output instead of
$seqres.full
diff --git a/tests/btrfs/036 b/tests/btrfs/036
new file mode 100644
index 0000000..b14697d
--- /dev/null
+++ b/tests/btrfs/036
@@ -0,0 +1,137 @@
+#! /bin/bash
+# FS QA Test No. 036
+#
+# Tests large metadata blocks in btrfs, which allows large extended
+# attributes.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014, Oracle and/or its affiliates. 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
+#-----------------------------------------------------------------------
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+status=1 # failure is the default!
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_need_to_be_root
+
+rm -f $seqres.full
+
+pagesize=`$here/src/feature -s`
+pagesize_kb=`expr $pagesize / 1024`
+
+# Test all valid leafsizes
+for leafsize in `seq $pagesize_kb $pagesize_kb 64`; do
+ _scratch_mkfs -l ${leafsize}K >/dev/null
+ _scratch_mount
+ # Calculate the size of the extended attribute value, leaving
+ # 512 bytes for other metadata.
+ xattr_size=`expr $leafsize \* 1024 - 512`
+
+ touch $SCRATCH_MNT/emptyfile
+ # smallfile will be inlined, bigfile not.
+ $XFS_IO_PROG -f -c "pwrite 0 100" $SCRATCH_MNT/smallfile \
+ >/dev/null
+ $XFS_IO_PROG -f -c "pwrite 0 9000" $SCRATCH_MNT/bigfile \
+ >/dev/null
+ ln -s $SCRATCH_MNT/bigfile $SCRATCH_MNT/bigfile_softlink
+
+ files=(emptyfile smallfile bigfile bigfile_softlink)
+ chars=(a b c d)
+ for i in `seq 0 1 3`; do
+ char=${chars[$i]}
+ file=$SCRATCH_MNT/${files[$i]}
+ lnkfile=${file}_hardlink
+ ln $file $lnkfile
+ xattr_value=`head -c $xattr_size < /dev/zero \
+ | tr '\0' $char`
+
+ set_md5=`echo -n "$xattr_value" | md5sum`
+ ${ATTR_PROG} -Lq -s attr_$char -V $xattr_value $file
+ get_md5=`${ATTR_PROG} -Lq -g attr_$char $file | md5sum`
+ get_ln_md5=`${ATTR_PROG} -Lq -g attr_$char $lnkfile \
+ | md5sum`
+
+ # Using md5sums for comparison instead of the values
+ # themselves because bash command lines cannot be larger
+ # than 64K chars.
+ if [ "$set_md5" != "$get_md5" ]; then
+ echo -n "Got unexpected xattr value for "
+ echo -n "attr_$char from file ${file}. "
+ echo "(leafsize is ${leafsize}K)"
+ fi
+ if [ "$set_md5" != "$get_ln_md5" ]; then
+ echo -n "Value for attr_$char differs for "
+ echo -n "$file and ${lnkfile}. "
+ echo "(leafsize is ${leafsize}K)"
+ fi
+ done
+
+ # Test attributes with a size larger than the leafsize.
+ # Should result in an error.
+ if [ "$leafsize" -lt "64" ]; then
+ # Bash command lines cannot be larger than 64K
+ # characters, so we do not test attribute values
+ # with a size >64KB.
+ xattr_size=`expr $leafsize \* 1024 + 512`
+ xattr_value=`head -c $xattr_size < /dev/zero | tr '\0' x`
+ ${ATTR_PROG} -q -s attr_toobig -V $xattr_value \
+ $SCRATCH_MNT/emptyfile >> $seqres.full 2>&1
+ if [ "$?" -eq "0" ]; then
+ echo -n "Expected error, xattr_size is bigger "
+ echo "than ${leafsize}K"
+ fi
+ fi
+
+ _scratch_unmount >/dev/null 2>&1
+ _check_scratch_fs
+done
+
+_scratch_mount
+
+# Illegal attribute name (more than 256 characters)
+attr_name=`head -c 260 < /dev/zero | tr '\0' n`
+${ATTR_PROG} -s $attr_name -V attribute_name_too_big \
+ $SCRATCH_MNT/emptyfile 2>&1 | head -n 1
+
+_scratch_unmount
+
+_filter_size_numbers() {
+ sed "s/$pagesize/PAGESIZE/g" | sed "s/$1/LEAFSIZE/g"
+}
+
+# Some illegal leafsizes
+_scratch_mkfs -l 0 2>&1 | _filter_size_numbers 0
+_scratch_mkfs -l 5678 2>&1 | _filter_size_numbers 5678
+lsize=`expr $pagesize / 2 + $pagesize`
+_scratch_mkfs -l $lsize 2>&1 | _filter_size_numbers $lsize
+_scratch_mkfs -l 128K 2>&1 | _filter_size_numbers 131072
+_scratch_mkfs -l K
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/036.out b/tests/btrfs/036.out
new file mode 100644
index 0000000..7e88d54
--- /dev/null
+++ b/tests/btrfs/036.out
@@ -0,0 +1,7 @@
+QA output created by 036
+attr_set: Invalid argument
+Illegal leafsize (or nodesize) LEAFSIZE (smaller than PAGESIZE)
+Illegal leafsize (or nodesize) LEAFSIZE (not align to PAGESIZE)
+Illegal leafsize (or nodesize) LEAFSIZE (not align to PAGESIZE)
+Illegal leafsize (or nodesize) LEAFSIZE (larger than 65536)
+ERROR: size value is empty
diff --git a/tests/btrfs/group b/tests/btrfs/group
index f9f062f..2ca2225 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -37,3 +37,4 @@
032 auto quick
033 auto quick
034 auto quick
+036 auto quick
--
1.7.1
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