From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eryu Guan Subject: [PATCH 1/2] common/rc: introduce _overlay_mount_dirs helper Date: Tue, 9 Aug 2016 19:16:20 +0800 Message-ID: <1470741381-32610-1-git-send-email-eguan@redhat.com> Return-path: Received: from mx1.redhat.com ([209.132.183.28]:55476 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751657AbcHILQe (ORCPT ); Tue, 9 Aug 2016 07:16:34 -0400 Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: fstests@vger.kernel.org Cc: linux-unionfs@vger.kernel.org, Eryu Guan Introduce a new _overlay_mount_dirs() helper to do the actual overlay mount operation and factor _overlay_scratch_mount and _overlay_mount code to use a single implemention of _overlay_mount_dirs(). Also convert all bare mount of overlay in tests to use it. Suggested-by: Dave Chinner Signed-off-by: Eryu Guan --- common/rc | 21 +++++++++++++++------ tests/overlay/005 | 6 ++---- tests/overlay/010 | 5 ++--- 3 files changed, 19 insertions(+), 13 deletions(-) diff --git a/common/rc b/common/rc index b19b698..6c1c3ff 100644 --- a/common/rc +++ b/common/rc @@ -266,6 +266,18 @@ _scratch_mount_options() $SCRATCH_DEV $SCRATCH_MNT } +# helper function to do the actual overlayfs mount operation +_overlay_mount_dirs() +{ + local lowerdir=$1 + local upperdir=$2 + local workdir=$3 + shift 3 + + $MOUNT_PROG -t overlay -o lowerdir=$lowerdir -o upperdir=$upperdir \ + -o workdir=$workdir $* +} + # 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() @@ -293,12 +305,9 @@ _overlay_mount() mkdir -p $dir/$OVERLAY_LOWER_DIR mkdir -p $dir/$OVERLAY_WORK_DIR - $MOUNT_PROG -t overlay $SELINUX_MOUNT_OPTIONS \ - -o lowerdir=$dir/$OVERLAY_LOWER_DIR \ - -o upperdir=$dir/$OVERLAY_UPPER_DIR \ - -o workdir=$dir/$OVERLAY_WORK_DIR \ - $OVERLAY_MOUNT_OPTIONS $* \ - $dir $mnt + _overlay_mount_dirs $dir/$OVERLAY_LOWER_DIR $dir/$OVERLAY_UPPER_DIR \ + $dir/$OVERLAY_WORK_DIR $OVERLAY_MOUNT_OPTIONS $* \ + $dir $mnt } _overlay_test_mount() diff --git a/tests/overlay/005 b/tests/overlay/005 index 495e7b5..522c6f0 100755 --- a/tests/overlay/005 +++ b/tests/overlay/005 @@ -93,10 +93,8 @@ $XFS_IO_PROG -f -c "truncate 48m" ${lowerd}/test_file \ >>$seqres.full 2>&1 # mount new overlayfs -$MOUNT_PROG -t overlay $SELINUX_MOUNT_OPTIONS \ - -o lowerdir=$lowerd -o upperdir=$upperd \ - -o workdir=$workd \ - $SCRATCH_DEV $SCRATCH_MNT +_overlay_mount_dirs $lowerd $upperd $workd $SELINUX_MOUNT_OPTIONS \ + $SCRATCH_DEV $SCRATCH_MNT # the open call triggers copy-up and it will fail ENOSPC $XFS_IO_PROG -f -c "o" ${SCRATCH_MNT}/test_file \ diff --git a/tests/overlay/010 b/tests/overlay/010 index 5d1c2bd..a302d74 100755 --- a/tests/overlay/010 +++ b/tests/overlay/010 @@ -67,9 +67,8 @@ touch $lowerdir1/testdir/a $lowerdir1/testdir/b mknod $lowerdir2/testdir/a c 0 0 # Mount overlayfs and remove testdir, which led to kernel crash -$MOUNT_PROG -t overlay -o lowerdir=$lowerdir2:$lowerdir1 \ - -o upperdir=$upperdir,workdir=$workdir \ - $SCRATCH_DEV $SCRATCH_MNT +_overlay_mount_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir \ + $SCRATCH_DEV $SCRATCH_MNT rm -rf $SCRATCH_MNT/testdir # success, all done -- 2.7.4