apfstests/199

#! /bin/sh
# FS QA Test No. 199
#
# Check that a filesystem first mounted read-only and then remounted
# performs the features2 fixup properly.
#
#-----------------------------------------------------------------------
# Copyright (c) 2008 Christoph Hellwig.
#-----------------------------------------------------------------------
#
# creator
owner=hch@lst.de

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

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!

_cleanup()
{
	cd /
	umount $SCRATCH_MNT >/dev/null 2>&1
}
trap "_cleanup; exit \$status" 0 1 2 3 15

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

# real QA test starts here
_supported_fs xfs
_supported_os Linux

_require_scratch

_scratch_mkfs_xfs >/dev/null 2>&1

#
# Print the current flags.  Just a dummy so that the test breaks
# in an obvious way when the default feature flags changed in mkfs
#
echo "Default feature2 flags:"
xfs_db -x $SCRATCH_DEV -c 'sb' -c 'print features2'
xfs_db -x $SCRATCH_DEV -c 'sb' -c 'print bad_features2'

#
# Now clear the normal flags
#
echo "Clearing features2:"
xfs_db -x $SCRATCH_DEV -c 'sb' -c 'write features2 0'

#
# And print the flags after a mount ro and remount rw
_scratch_mount -o ro
_scratch_mount -o remount,rw
umount $SCRATCH_MNT
echo "Features 2 after mount ro and remount rw:"
xfs_db -x $SCRATCH_DEV -c 'sb' -c 'print features2'

# success, all done
echo "*** done"
rm -f $seq.full
status=0