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[PATCH 3/3 v2] xfstests: add btrfs online defragments QA test

To: <xfs@xxxxxxxxxxx>
Subject: [PATCH 3/3 v2] xfstests: add btrfs online defragments QA test
From: Liu Bo <liubo2009@xxxxxxxxxxxxxx>
Date: Thu, 9 Feb 2012 13:40:34 +0800
Cc: <linux-btrfs@xxxxxxxxxxxxxxx>, <hch@xxxxxxxxxxxxx>
As the title shows, we port btrfs online defragments QA test into xfstests.

v1->v2:
- place the real tests inside testcases.

Signed-off-by: Liu Bo <liubo2009@xxxxxxxxxxxxxx>
---
 278      |  247 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 278.args |   18 +++++
 278.out  |   75 +++++++++++++++++++
 group    |    1 +
 4 files changed, 341 insertions(+), 0 deletions(-)
 create mode 100755 278
 create mode 100644 278.args
 create mode 100644 278.out

diff --git a/278 b/278
new file mode 100755
index 0000000..71f12e0
--- /dev/null
+++ b/278
@@ -0,0 +1,247 @@
+#! /bin/bash
+# FS QA Test No. 278
+#
+# Btrfs Online defragmentation tests
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2012 Fujitsu Liu Bo.  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=liubo2009@xxxxxxxxxxxxxx
+
+seq=`basename $0`
+echo "QA output created by $seq"
+test_path="`pwd`"
+progs_dir="$test_path/src/btrfs_online_defragment/"
+tmp=tmp/$$
+defrag_args="$test_path/${seq}.args"
+
+status=1       # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+    cd /
+    rm -f $tmp.*
+}
+
+_create_file()
+{
+       CNT=11999
+       FILESIZE=48000
+       if [ "$DEFRAG_TARGET" = "1" ];then
+               for i in `seq $CNT -1 0`; do
+                       dd if=/dev/zero of=$SCRATCH_MNT/tmp_file bs=4k count=1 \
+                        conv=notrunc seek=$i oflag=sync &>/dev/null
+               done
+               # get md5sum
+               md5sum $SCRATCH_MNT/tmp_file > /tmp/checksum
+       elif [ "$DEFRAG_TARGET" = "2" ];then
+               mkdir $SCRATCH_MNT/tmp_dir
+               for i in `seq $CNT -1 0`; do
+                       dd if=/dev/zero of=$SCRATCH_MNT/tmp_dir/tmp_file bs=4k \
+                       count=1 conv=notrunc seek=$i oflag=sync &>/dev/null
+               done
+               # get md5sum
+               md5sum $SCRATCH_MNT/tmp_dir/tmp_file > /tmp/checksum
+       elif [ "$DEFRAG_TARGET" = "3" ];then
+               for i in `seq $CNT -1 0`; do
+                       dd if=/dev/zero of=$SCRATCH_MNT/tmp_file bs=4k count=1 \
+                       conv=notrunc seek=$i oflag=sync &>/dev/null
+               done
+               # get md5sum
+               md5sum $SCRATCH_MNT/tmp_file > /tmp/checksum
+       fi
+}
+
+_btrfs_online_defrag()
+{
+       str=""
+       if [ "$FILE_RANGE" = "2" ];then
+               str="$str -s -1 -l $((FILESIZE / 2)) "
+       elif [ "$FILE_RANGE" = "3" ];then
+               str="$str -s $((FILESIZE + 1)) -l $((FILESIZE / 2)) "
+               HAVE_DEFRAG=1
+       elif [ "$FILE_RANGE" = "4" ];then
+               str="$str -l -1 "
+       elif [ "$FILE_RANGE" = "5" ];then
+               str="$str -l $((FILESIZE + 1)) "
+       elif [ "$FILE_RANGE" = "6" ];then
+               str="$str -l $((FILESIZE / 2)) "
+       fi
+
+       if [ "$DEFRAG_COMPRESS" = "2" ];then
+               str="$str -c "
+       fi
+
+       if [ "$FLUSH" = "2" ];then
+               str="$str -f "
+       fi
+
+       if [ "$THRESH" = "2" ];then
+               str="$str -t -1 "
+       elif [ "$THRESH" = "3" ];then
+               str="$str -t $PAGESIZE "
+       fi
+
+       if [ "$str" != "" ]; then
+               btrfs filesystem defragment $str $SCRATCH_MNT/tmp_file
+       else
+               if [ "$DEFRAG_TARGET" = "1" ];then
+                       btrfs filesystem defragment $SCRATCH_MNT/tmp_file
+               elif [ "$DEFRAG_TARGET" = "2" ];then
+                       btrfs filesystem defragment $SCRATCH_MNT/tmp_dir
+               elif [ "$DEFRAG_TARGET" = "3" ];then
+                       btrfs filesystem defragment $SCRATCH_MNT
+               fi
+       fi
+       ret_val=$?
+       sync
+       if [ $ret_val -ne 20 ];then
+               echo "btrfs filesystem defragment failed! err is $ret_val"
+       fi
+}
+
+_checksum()
+{
+       md5sum -c /tmp/checksum > /dev/null 2>&1
+       if [ $? -ne 0 ]; then
+               echo "md5 checksum failed!"
+       fi
+}
+
+_fsck()
+{
+       btrfsck $SCRATCH_DEV > /dev/null 2>&1
+       ret_val=$?
+       if [ $ret_val -ne 0 ]; then
+               echo "btrfsck _FAIL_! err is $ret_val"
+       fi
+}
+
+_parse_options()
+{
+       PASS=0
+       if [ "`echo $args | grep "#"`" != "" ];then
+               PASS=1
+       fi
+
+       if [ $PASS -ne 1 ];then
+       DEFRAG_TARGET=`echo $args | awk -F ' ' '{ print $1 }'`
+       case $DEFRAG_TARGET in
+               "1")
+                       echo "a single file"
+                       ;;
+               "2")
+                       echo "a directory"
+                       ;;
+               "3")
+                       echo "a filesystem"
+                       ;;
+       esac
+
+       FILE_RANGE=`echo $args | awk -F ' ' '{ print $2 }'`
+       case $FILE_RANGE in
+               "1")
+                       echo "online defragment range: default"
+                       ;;
+               "2")
+                       echo "online defragment range: start < 0 && 0 < len < 
file size"
+                       ;;
+               "3")
+                       echo "online defragment range: start > file size && 0 < 
len < file size"
+                       ;;
+               "4")
+                       echo "online defragment range: start = 0 && len < 0"
+                       ;;
+               "5")
+                       echo "online defragment range: start = 0 && len > file 
size"
+                       ;;
+               "6")
+                       echo "online defragment range: start = 0 && 0 < len < 
file size"
+                       ;;
+       esac
+
+       DEFRAG_COMPRESS=`echo $args | awk -F ' ' '{ print $3 }'`
+       case $DEFRAG_COMPRESS in
+               "1")
+                       echo "online defragment compress: off"
+                       ;;
+               "2")
+                       echo "online defragment compress: on"
+       esac
+       fi
+}
+
+_cleanup_defrag()
+{
+       rm -fr $SCRATCH_MNT/*
+       umount $SCRATCH_MNT > /dev/null 2>&1
+}
+
+_setup_defrag()
+{
+       umount $SCRATCH_MNT > /dev/null 2>&1
+       _scratch_mkfs > /dev/null 2>&1
+       _scratch_mount
+       _create_file
+}
+
+_rundefrag()
+{
+       args=$1
+
+       echo "btrfs online defragment test start"
+       while read args
+       do
+               echo "$args"
+               _parse_options
+               _setup_defrag
+               _btrfs_online_defrag
+               _checksum
+               _cleanup_defrag
+               _fsck
+       done < $args
+       echo "btrfs online defragment test done"
+}
+
+_runtest()
+{
+       _rundefrag $defrag_args
+}
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.defrag
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+
+_setup_testdir
+## We require scratch so that we'll have free contiguous space
+_require_scratch
+_scratch_mkfs >/dev/null 2>&1
+_scratch_mount
+
+_require_defrag
+
+_runtest
+
+status=0
+exit
diff --git a/278.args b/278.args
new file mode 100644
index 0000000..9c22dc9
--- /dev/null
+++ b/278.args
@@ -0,0 +1,18 @@
+1      1       1       1       1
+1      1       1       1       2
+1      1       1       1       3
+1      1       1       2       1
+1      1       2       -       -
+1      6       1       1       1
+1      1       1       1       1
+1      1       1       1       2
+1      1       1       1       3
+1      1       1       2       1
+1      1       2       -       -
+1      2       1       1       1
+1      3       1       1       1
+1      4       1       1       1
+1      5       1       1       1
+1      6       1       1       1
+2      1       1       1       1
+3      1       1       1       1
diff --git a/278.out b/278.out
new file mode 100644
index 0000000..2fc167d
--- /dev/null
+++ b/278.out
@@ -0,0 +1,75 @@
+QA output created by 278
+btrfs online defragment test start
+1      1       1       1       1
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       1       2
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       1       3
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       2       1
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       2       -       -
+a single file
+online defragment range: default
+online defragment compress: on
+1      6       1       1       1
+a single file
+online defragment range: start = 0 && 0 < len < file size
+online defragment compress: off
+1      1       1       1       1
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       1       2
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       1       3
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       1       2       1
+a single file
+online defragment range: default
+online defragment compress: off
+1      1       2       -       -
+a single file
+online defragment range: default
+online defragment compress: on
+1      2       1       1       1
+a single file
+online defragment range: start < 0 && 0 < len < file size
+online defragment compress: off
+1      3       1       1       1
+a single file
+online defragment range: start > file size && 0 < len < file size
+online defragment compress: off
+1      4       1       1       1
+a single file
+online defragment range: start = 0 && len < 0
+online defragment compress: off
+1      5       1       1       1
+a single file
+online defragment range: start = 0 && len > file size
+online defragment compress: off
+1      6       1       1       1
+a single file
+online defragment range: start = 0 && 0 < len < file size
+online defragment compress: off
+2      1       1       1       1
+a directory
+online defragment range: default
+online defragment compress: off
+3      1       1       1       1
+a filesystem
+online defragment range: default
+online defragment compress: off
+btrfs online defragment test done
diff --git a/group b/group
index 99592d3..9dedd25 100644
--- a/group
+++ b/group
@@ -391,3 +391,4 @@ deprecated
 275 auto rw
 276 auto rw metadata
 277 auto ioctl quick metadata
+278 auto
-- 
1.6.5.2

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