export TIME_FACTOR=${TIME_FACTOR:=1}
export LOAD_FACTOR=${LOAD_FACTOR:=1}
export DEBUGFS_MNT=${DEBUGFS_MNT:="/sys/kernel/debug"}
-export OVERLAY_UPPER_DIR=${OVERLAY_UPPER_DIR:="upper"}
-export OVERLAY_LOWER_DIR=${OVERLAY_LOWER_DIR:="lower"}
-export OVERLAY_WORK_DIR=${OVERLAY_WORK_DIR:="work"}
+
+# some constants for overlayfs setup
+export OVL_UPPER="ovl-upper"
+export OVL_LOWER="ovl-lower"
+export OVL_WORK="ovl-work"
export PWD=`pwd`
#export DEBUG=${DEBUG:=...} # arbitrary CFLAGS really.
sed -e '/^lost+found$/d'
}
+_filter_ovl_dirs()
+{
+ sed -e "s,$OVL_LOWER,OVL_LOWER,g" \
+ -e "s,$OVL_UPPER,OVL_UPPER,g" \
+ -e "s,$OVL_WORK,OVL_WORK,g"
+}
+
# make sure this script returns success
/bin/true
_overlay_basic_mount_options()
{
- echo "-o lowerdir=$1/$OVERLAY_LOWER_DIR,upperdir=$1/$OVERLAY_UPPER_DIR,workdir=$1/$OVERLAY_WORK_DIR"
+ echo "-o lowerdir=$1/$OVL_LOWER,upperdir=$1/$OVL_UPPER,workdir=$1/$OVL_WORK"
}
_overlay_mount_options()
-o workdir=$workdir $*
}
+_overlay_mkdirs()
+{
+ local dir=$1
+
+ mkdir -p $dir/$OVL_UPPER
+ mkdir -p $dir/$OVL_LOWER
+ mkdir -p $dir/$OVL_WORK
+}
+
# Given a dir, set up 3 subdirectories and mount on the given mnt.
# The dir is used as the mount device so it can be seen from df or mount
_overlay_mount()
_supports_filetype $dir || _notrun "upper fs needs to support d_type"
- mkdir -p $dir/$OVERLAY_UPPER_DIR
- mkdir -p $dir/$OVERLAY_LOWER_DIR
- mkdir -p $dir/$OVERLAY_WORK_DIR
+ _overlay_mkdirs $dir
- _overlay_mount_dirs $dir/$OVERLAY_LOWER_DIR $dir/$OVERLAY_UPPER_DIR \
- $dir/$OVERLAY_WORK_DIR $OVERLAY_MOUNT_OPTIONS \
+ _overlay_mount_dirs $dir/$OVL_LOWER $dir/$OVL_UPPER \
+ $dir/$OVL_WORK $OVERLAY_MOUNT_OPTIONS \
$SELINUX_MOUNT_OPTIONS $* $dir $mnt
}
_require_fs_space $SCRATCH_DEV $((4*1024*1024*2 + 8))
# Create test files with different sizes in lower dir
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
touch $lowerdir/zero_size
$XFS_IO_PROG -fc "pwrite 0 4k" $lowerdir/less_than_4g >>$seqres.full
_scratch_mkfs
# Create our test file.
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
touch $lowerdir/foobar
_scratch_mkfs
# Create test files dirs in lower dir
-lowerdir=${SCRATCH_DEV}/${OVERLAY_LOWER_DIR}
+lowerdir=${SCRATCH_DEV}/${OVL_LOWER}
mkdir -p $lowerdir
touch ${lowerdir}/test_file
_scratch_mkfs
# Create test file in lower dir
-lowerdir=${SCRATCH_DEV}/${OVERLAY_LOWER_DIR}
-upperdir=${SCRATCH_DEV}/${OVERLAY_UPPER_DIR}
+lowerdir=${SCRATCH_DEV}/${OVL_LOWER}
+upperdir=${SCRATCH_DEV}/${OVL_UPPER}
mkdir -p $lowerdir
touch ${lowerdir}/attr_file1
chmod 000 ${lowerdir}/attr_file1
_scratch_mkfs
# Create test file/dir before mount
-mkdir $SCRATCH_DEV/$OVERLAY_LOWER_DIR
-mkdir $SCRATCH_DEV/$OVERLAY_UPPER_DIR
-touch $SCRATCH_DEV/$OVERLAY_LOWER_DIR/lowertestfile
-mkdir $SCRATCH_DEV/$OVERLAY_UPPER_DIR/uppertestdir
+mkdir -p $SCRATCH_DEV/$OVL_LOWER
+mkdir -p $SCRATCH_DEV/$OVL_UPPER
+touch $SCRATCH_DEV/$OVL_LOWER/lowertestfile
+mkdir $SCRATCH_DEV/$OVL_UPPER/uppertestdir
_scratch_mount
# rename lowertestfile to uppertestdir, this triggers copyup and creates
-# whiteout in $OVERLAY_UPPER_DIR
+# whiteout in $OVL_UPPER
mv $SCRATCH_MNT/lowertestfile $SCRATCH_MNT/uppertestdir
# the lowertestfile can be removed
rm $SCRATCH_MNT/uppertestdir/lowertestfile
_scratch_mkfs
# Create test file on lower dir, and chown to fsgqa user
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
-mkdir $lowerdir
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
+mkdir -p $lowerdir
touch $lowerdir/testfile
chown fsgqa:fsgqa $lowerdir/testfile
# chown upperdir to fsgqa user, so new file/dir can be created by the user
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
-mkdir $upperdir
+upperdir=$SCRATCH_DEV/$OVL_UPPER
+mkdir -p $upperdir
chown fsgqa:fsgqa $upperdir
_scratch_mount
_scratch_mkfs
# Create test file in lowerdir
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
touch $lowerdir/testfile
# Need two lower dirs in this test, and we mount overlay ourselves,
# create upper and workdir as well
-lowerdir1=$SCRATCH_DEV/$OVERLAY_LOWER_DIR.1
-lowerdir2=$SCRATCH_DEV/$OVERLAY_LOWER_DIR.2
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
-workdir=$SCRATCH_DEV/$OVERLAY_WORK_DIR
+lowerdir1=$SCRATCH_DEV/$OVL_LOWER.1
+lowerdir2=$SCRATCH_DEV/$OVL_LOWER.2
+upperdir=$SCRATCH_DEV/$OVL_UPPER
+workdir=$SCRATCH_DEV/$OVL_WORK
mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir
# One lowerdir contains test dir and test files, the other contains whiteout
_scratch_mkfs
# Create test dir on upper and make it opaque by setting proper xattr
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
+upperdir=$SCRATCH_DEV/$OVL_UPPER
mkdir -p $lowerdir/testdir
mkdir -p $upperdir/testdir
$SETFATTR_PROG -n "trusted.overlay.opaque" -v "y" $upperdir/testdir
# remove all files from previous runs
_scratch_mkfs
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
+upperdir=$SCRATCH_DEV/$OVL_UPPER
mkdir -p $lowerdir/test
_scratch_mount
_scratch_mkfs
# copy test program to lower and upper dir
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
+upperdir=$SCRATCH_DEV/$OVL_UPPER
mkdir -p $lowerdir
mkdir -p $upperdir
cp $here/src/t_truncate_self $lowerdir/test_lower
umask 022
# Create test dir in lower dir and set sgid bit
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir/dir
chown $qa_user:$qa_group $lowerdir/dir
chmod 2775 $lowerdir/dir
_scratch_mkfs >>$seqres.full 2>&1
# Create our test files.
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
echo "This is old news" > $lowerdir/foo
echo "This is old news" > $lowerdir/bar
# Not dealing with hardlinks here, because there is more to test
# then stable inode number.
# Hardlinks will get a test of their own.
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
mkdir $lowerdir/dir
touch $lowerdir/file
_scratch_mkfs >>$seqres.full 2>&1
# Create 2 hardlinked files in lower
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
echo "patient zero" >> $lowerdir/foo
ln $lowerdir/foo $lowerdir/bar
# Remove all files from previous tests
_scratch_mkfs
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
_scratch_mount
# Remove all files from previous tests
_scratch_mkfs
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir/dir
_scratch_mount
# conservative and reserve space for 16 data copy ups per directory.
_require_fs_space $SCRATCH_DEV $((16*(16+32+64+128)*1024))
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
testdir=arena
# Remove all files from previous tests
_scratch_mkfs
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
+upperdir=$SCRATCH_DEV/$OVL_UPPER
mkdir -p $upperdir/upper
mkdir -p $upperdir/work
# mount overlay with dirs in upper
_scratch_mkfs
# setting acls before mount
-wkdir=$SCRATCH_DEV/$OVERLAY_WORK_DIR
+wkdir=$SCRATCH_DEV/$OVL_WORK
mkdir -p $wkdir
setfacl -d -m o::rwx $wkdir
_scratch_mount
# getting acls, ACL set on workdir should be cleaned
-getfacl -p $wkdir/work 2>&1 | _filter_scratch
+getfacl -p $wkdir/work 2>&1 | _filter_scratch | _filter_ovl_dirs
# success, all done
status=0
QA output created by 023
-# file: SCRATCH_DEV/work/work
+# file: SCRATCH_DEV/OVL_WORK/work
# owner: root
# group: root
user::---
_scratch_mkfs
# making workdir
-wkdir=$SCRATCH_DEV/$OVERLAY_WORK_DIR
+wkdir=$SCRATCH_DEV/$OVL_WORK
mkdir -p $wkdir/work/foo
_scratch_mount
_scratch_mkfs
# Preparing immutable file
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
+upperdir=$SCRATCH_DEV/$OVL_UPPER
mkdir -p $upperdir
touch $upperdir/foo
$CHATTR_PROG +i $upperdir/foo
# Remove all files from previous tests
_scratch_mkfs
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $lowerdir
touch $lowerdir/foo
_scratch_mkfs
# Preparing files
-upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR
-lowerdir=$SCRATCH_DEV/$OVERLAY_LOWER_DIR
+upperdir=$SCRATCH_DEV/$OVL_UPPER
+lowerdir=$SCRATCH_DEV/$OVL_LOWER
mkdir -p $upperdir/up
echo foo > $upperdir/up/foo
mkdir -p $lowerdir/low