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test out attr2 with different number of extents and number
of EAs - with both sizes shrinking and enlarging and changing
formats. Need to fix up the output before setting live.
Merge of master-melb:xfs-cmds:27208a by kenmcd.

  test out attr2 with different number of extents and number
  of EAs - with both sizes shrinking and enlarging and changing
  formats. Need to fix up the output before setting live.

#! /bin/sh
# FS QA Test No. 135
#
# Test the attr2 code
# Let's look, xfs_db, at the inode and its literal area for the
# extents and the attributes 
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=tes@puffy.melbourne.sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
    cd /
    rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

# real QA test starts here

_notrun "Need to fix up filtering before checkin" 

# Modify as appropriate.
_supported_fs xfs
_supported_os IRIX Linux
_require_scratch

export MKFS_OPTIONS="-i size=512,attr=2"
_scratch_mkfs_xfs
_scratch_mount

file=$SCRATCH_MNT/file
touch $file
inum=`ls -i $file | awk '{print $1}'`
echo "inum=$inum"

add_eas()
{
    start=$1
    end=$2
    echo ""; echo "** add $start..$end EAs **"
    i=$start
    while [ $i -le $end ]; do 
	attr -s name.$i -V value $file >/dev/null
	i=`expr $i + 1`
    done
}

rm_eas()
{
    start=$1
    end=$2
    echo ""; echo "** rm $start..$end EAs **"
    i=$start
    while [ $i -le $end ]; do 
	attr -r name.$i $file >/dev/null
	i=`expr $i + 1`
    done
}

do_extents()
{
    num=$1
    echo ""; echo "** $num extents **"
    src/makeextents -v -p -w -n $num $file
}

_print_inode()
{
    #sync
    #sleep 2
    umount $SCRATCH_MNT
    xfs_db -r -c "inode $inum" -c "print" $SCRATCH_DEV |\
    awk '
	/nextents/ { print; next }
	/naextents/ { print; next }
	/u\./ { print; next }
	/a\./ { print; next }
	/forkoff/ { printf("core.forkoff = %d (%d bytes)\n", $3, $3*8); next }
	/format/ { print; next }
	/size/ { print; next }
    '
    _scratch_mount
}

# main

_print_inode

add_eas 1 1
_print_inode

add_eas 2 2
_print_inode

add_eas 3 4
_print_inode

add_eas 5 8
_print_inode

add_eas 9 16
_print_inode

add_eas 17 20
_print_inode

add_eas 21 21
_print_inode

add_eas 22 22
_print_inode

add_eas 23 23
_print_inode

add_eas 24 24
_print_inode

add_eas 25 25
_print_inode

add_eas 26 30
_print_inode

add_eas 31 35
_print_inode

rm_eas 1 34
_print_inode

# now do the extents

#build up
j=1
while [ $j -le 30 ]; do
    do_extents $j
    _print_inode
    j=`expr $j + 2`
done

#scale down
j=30
while [ $j -ge 1 ]; do
    do_extents $j
    _print_inode
    j=`expr $j - 2`
done

#build up
j=1
while [ $j -le 30 ]; do
    do_extents $j
    _print_inode
    j=`expr $j + 2`
done

# success, all done
status=0
exit