| Message ID | 1ebef916f54960cf6fef34be950e3d38cc3a50b0.1433537929.git.osandov@osandov.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jun 5, 2015 at 10:00 PM, Omar Sandoval <osandov@osandov.com> wrote: > Add a regression test for a problem where attempting to delete the > default subvolume would fail (as expected), but not until after all > submounts under the subvolume were unmounted. > > Reviewed-by: Eryu Guan <eguan@redhat.com> > Signed-off-by: Omar Sandoval <osandov@osandov.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Tested-by: Filipe Manana <fdmanana@suse.com> Thanks for doing this. > --- > v2->v3: > - Update description (thanks, Eryu) > - Remove unneeded touch > > v1->v2: > - Simpler test: just depends on umount of the bind mount succeeding > instead of running find. Without the patch applied, the bind mount > will disappear so umount will fail. > - Fix Eryu's comments (better subject, copyright, use > _btrfs_get_subvolid) > > tests/btrfs/089 | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++ > tests/btrfs/089.out | 2 ++ > tests/btrfs/group | 1 + > 3 files changed, 82 insertions(+) > create mode 100755 tests/btrfs/089 > create mode 100644 tests/btrfs/089.out > > diff --git a/tests/btrfs/089 b/tests/btrfs/089 > new file mode 100755 > index 000000000000..537269824b62 > --- /dev/null > +++ b/tests/btrfs/089 > @@ -0,0 +1,79 @@ > +#! /bin/bash > +# FS QA Test 089 > +# > +# Test deleting the default subvolume, making sure that submounts under it are > +# not unmounted prematurely. This is a regression test for Linux commit "Btrfs: > +# don't invalidate root dentry when subvolume deletion fails". > +# > +#----------------------------------------------------------------------- > +# Copyright (c) 2015 Omar Sandoval. 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 > +#----------------------------------------------------------------------- > +# > + > +seq=`basename $0` > +seqres=$RESULT_DIR/$seq > +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 > +. ./common/filter.btrfs > + > +# real QA test starts here > + > +# Modify as appropriate. > +_need_to_be_root > +_supported_fs btrfs > +_supported_os Linux > +_require_scratch > + > +rm -f $seqres.full > + > +_scratch_mkfs >>$seqres.full 2>&1 > +_scratch_mount > + > +# Create a new subvolume and make it the default subvolume. > +$BTRFS_UTIL_PROG subvolume create "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 \ > + || _fail "couldn't create subvol" > +testvol_id=$(_btrfs_get_subvolid "$SCRATCH_MNT" testvol) > +$BTRFS_UTIL_PROG subvolume set-default $testvol_id "$SCRATCH_MNT" >>$seqres.full 2>&1 \ > + || _fail "couldn't set default" > + > +# Bind-mount a directory under the default subvolume. > +mkdir "$SCRATCH_MNT/testvol/testdir" > +mkdir "$SCRATCH_MNT/testvol/mnt" > +mount --bind "$SCRATCH_MNT/testvol/testdir" "$SCRATCH_MNT/testvol/mnt" > + > +# Now attempt to delete the default subvolume. > +$BTRFS_UTIL_PROG subvolume delete "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 > + > +# Unmount the bind mount, which should still be alive. > +$UMOUNT_PROG "$SCRATCH_MNT/testvol/mnt" > + > +echo "Silence is golden" > +status=0 > +exit > diff --git a/tests/btrfs/089.out b/tests/btrfs/089.out > new file mode 100644 > index 000000000000..a7fcdee9b767 > --- /dev/null > +++ b/tests/btrfs/089.out > @@ -0,0 +1,2 @@ > +QA output created by 089 > +Silence is golden > diff --git a/tests/btrfs/group b/tests/btrfs/group > index ffe18bff0d21..616d060758c1 100644 > --- a/tests/btrfs/group > +++ b/tests/btrfs/group > @@ -91,6 +91,7 @@ > 086 auto quick clone > 087 auto quick send > 088 auto quick metadata > +089 auto quick subvol > 090 auto quick metadata > 091 auto quick qgroup > 092 auto quick send > -- > 2.4.2 > > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/tests/btrfs/089 b/tests/btrfs/089 new file mode 100755 index 000000000000..537269824b62 --- /dev/null +++ b/tests/btrfs/089 @@ -0,0 +1,79 @@ +#! /bin/bash +# FS QA Test 089 +# +# Test deleting the default subvolume, making sure that submounts under it are +# not unmounted prematurely. This is a regression test for Linux commit "Btrfs: +# don't invalidate root dentry when subvolume deletion fails". +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Omar Sandoval. 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 +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +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 +. ./common/filter.btrfs + +# real QA test starts here + +# Modify as appropriate. +_need_to_be_root +_supported_fs btrfs +_supported_os Linux +_require_scratch + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +# Create a new subvolume and make it the default subvolume. +$BTRFS_UTIL_PROG subvolume create "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 \ + || _fail "couldn't create subvol" +testvol_id=$(_btrfs_get_subvolid "$SCRATCH_MNT" testvol) +$BTRFS_UTIL_PROG subvolume set-default $testvol_id "$SCRATCH_MNT" >>$seqres.full 2>&1 \ + || _fail "couldn't set default" + +# Bind-mount a directory under the default subvolume. +mkdir "$SCRATCH_MNT/testvol/testdir" +mkdir "$SCRATCH_MNT/testvol/mnt" +mount --bind "$SCRATCH_MNT/testvol/testdir" "$SCRATCH_MNT/testvol/mnt" + +# Now attempt to delete the default subvolume. +$BTRFS_UTIL_PROG subvolume delete "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 + +# Unmount the bind mount, which should still be alive. +$UMOUNT_PROG "$SCRATCH_MNT/testvol/mnt" + +echo "Silence is golden" +status=0 +exit diff --git a/tests/btrfs/089.out b/tests/btrfs/089.out new file mode 100644 index 000000000000..a7fcdee9b767 --- /dev/null +++ b/tests/btrfs/089.out @@ -0,0 +1,2 @@ +QA output created by 089 +Silence is golden diff --git a/tests/btrfs/group b/tests/btrfs/group index ffe18bff0d21..616d060758c1 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -91,6 +91,7 @@ 086 auto quick clone 087 auto quick send 088 auto quick metadata +089 auto quick subvol 090 auto quick metadata 091 auto quick qgroup 092 auto quick send