From c68eba8a2b5b1e7ae03a26309510874f7a72d5e8 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 30 Jan 2018 08:12:21 +0200 Subject: [PATCH] overlay: test encode/decode overlay file handles with renames - Check decode/read of file handles after rename of parent - Check decode/read of file handles after rename of grandparent - Check decode/read of file handles after move to new parent - Check encode/decode/read of file handles in non-upper overlay This test requires and enables overlayfs NFS export support and merge dir rename support (redirect_dir). NFS export support depends on and requires overlayfs index feature. This test covers only encode/decode of file handles for overlayfs configuration of all layers on the same base fs. Signed-off-by: Amir Goldstein Reviewed-by: Eryu Guan Signed-off-by: Eryu Guan --- tests/overlay/052 | 184 ++++++++++++++++++++++++++++++++++++++++++ tests/overlay/052.out | 22 +++++ tests/overlay/group | 1 + 3 files changed, 207 insertions(+) create mode 100755 tests/overlay/052 create mode 100644 tests/overlay/052.out diff --git a/tests/overlay/052 b/tests/overlay/052 new file mode 100755 index 00000000..130adf22 --- /dev/null +++ b/tests/overlay/052 @@ -0,0 +1,184 @@ +#! /bin/bash +# FS QA Test No. 052 +# +# Test encode/decode overlay file handles with renames +# +# - Check decode/read of file handles after rename of parent +# - Check decode/read of file handles after rename of grandparent +# - Check decode/read of file handles after move to new parent +# - Check encode/decode/read of file handles in non-upper overlay +# +# This test requires and enables overlayfs NFS export support and merge +# dir rename support (redirect_dir). +# NFS export support depends on and requires overlayfs index feature. +# +#----------------------------------------------------------------------- +# Copyright (C) 2018 CTERA Networks. All Rights Reserved. +# Author: Amir Goldstein +# +# 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 $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here + +_supported_fs overlay +_supported_os Linux +_require_scratch +_require_test_program "open_by_handle" +# We need to require all features together, because nfs_export cannot +# be enabled when index is disabled +_require_scratch_overlay_features index nfs_export redirect_dir + +# All overlay dirs are on scratch partition +lower=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER +middle=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER.2 +upper=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER +work=$OVL_BASE_SCRATCH_MNT/$OVL_WORK + +NUMFILES=1 + +# Create test dir and empty test files +create_test_files() +{ + local dir=$1 + local opt=$2 + + mkdir -p $dir + $here/src/open_by_handle -cp $opt $dir $NUMFILES +} + +# Test encode/decode file handles on overlay mount +test_file_handles() +{ + local dir=$1 + shift + + echo test_file_handles $dir $* | _filter_scratch | \ + sed -e "s,$tmp\.,,g" + $here/src/open_by_handle $* $dir $NUMFILES +} + +# Re-create lower/middle/upper/work dirs +create_dirs() +{ + _scratch_mkfs + mkdir -p $middle +} + +# Mount an overlay on $SCRATCH_MNT with all layers on scratch partition +mount_dirs() +{ + _scratch_mount -o "index=on,nfs_export=on,redirect_dir=on" +} + +# Unmount the overlay without unmounting base fs +unmount_dirs() +{ + $UMOUNT_PROG $SCRATCH_MNT +} + +# Check non-stale file handles of lower/upper moved files +create_dirs +create_test_files $upper/uppertestdir -w +create_test_files $lower/lowertestdir -w +mkdir -p $lower/lowertestdir.lo $lower/lowertestdir.up $upper/uppertestdir.lo $upper/uppertestdir.up +mount_dirs +# Check encode/decode/read of lower/upper file handles after move to new upper testdir +test_file_handles $SCRATCH_MNT/uppertestdir -o $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT/lowertestdir -o $tmp.lower_file_handles +mv $SCRATCH_MNT/uppertestdir/* $SCRATCH_MNT/uppertestdir.up/ +mv $SCRATCH_MNT/lowertestdir/* $SCRATCH_MNT/uppertestdir.lo/ +# Check open and read from stored file handles +test_file_handles $SCRATCH_MNT -r -i $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT -r -i $tmp.lower_file_handles +# Check encode/decode/read of lower/upper file handles after move to new merge testdir +test_file_handles $SCRATCH_MNT/uppertestdir.up -o $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT/uppertestdir.lo -o $tmp.lower_file_handles +mv $SCRATCH_MNT/uppertestdir.up/* $SCRATCH_MNT/lowertestdir.up/ +mv $SCRATCH_MNT/uppertestdir.lo/* $SCRATCH_MNT/lowertestdir.lo/ +# Check open and read from stored file handles +test_file_handles $SCRATCH_MNT -r -i $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT -r -i $tmp.lower_file_handles +unmount_dirs + +# Check non-stale file handles of lower/upper renamed dirs +create_dirs +create_test_files $upper/uppertestdir -w +create_test_files $lower/lowertestdir -w +create_test_files $upper/uppertestdir/subdir -w +create_test_files $lower/lowertestdir/subdir -w +mount_dirs +# Check encode/decode/read of lower/upper file handles after rename of testdir +test_file_handles $SCRATCH_MNT/uppertestdir -p -o $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT/lowertestdir -p -o $tmp.lower_file_handles +# Check encode/decode/read of lower/upper file handles after rename of testdir's parent +test_file_handles $SCRATCH_MNT/uppertestdir/subdir -p -o $tmp.upper_subdir_file_handles +test_file_handles $SCRATCH_MNT/lowertestdir/subdir -p -o $tmp.lower_subdir_file_handles +# Rename pure upper dir +mv $SCRATCH_MNT/uppertestdir $SCRATCH_MNT/uppertestdir.new/ +# Copy up lower dir, index and rename +mv $SCRATCH_MNT/lowertestdir $SCRATCH_MNT/lowertestdir.new/ +# Check open, read and readdir from stored file handles +# (testdir argument is the mount point and NOT the dir +# we are trying to open by stored file handle) +test_file_handles $SCRATCH_MNT -rp -i $tmp.upper_file_handles +test_file_handles $SCRATCH_MNT -rp -i $tmp.lower_file_handles +test_file_handles $SCRATCH_MNT -rp -i $tmp.upper_subdir_file_handles +test_file_handles $SCRATCH_MNT -rp -i $tmp.lower_subdir_file_handles +# Retry decoding lower subdir file handle when indexed testdir is in dcache +# (providing renamed testdir argument pins the indexed testdir to dcache) +test_file_handles $SCRATCH_MNT/lowertestdir.new -rp -i $tmp.lower_subdir_file_handles +unmount_dirs + +# Check encode/decode/read of lower file handles on lower layers only r/o overlay. +# For non-upper overlay mount, nfs_export requires disabling redirect_dir. +$MOUNT_PROG -t overlay $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT \ + -o ro,redirect_dir=nofollow,nfs_export=on,lowerdir=$middle:$lower +test_file_handles $SCRATCH_MNT/lowertestdir -rp +test_file_handles $SCRATCH_MNT/lowertestdir/subdir -rp +unmount_dirs + +# Check encode/decode/read of lower file handles on lower layers only r/o overlay +# with non-indexed redirects from top lower layer to bottom lower layer. +# Overlay lookup cannot follow the redirect from $upper/lowertestdir.new to +# $lower/lowertestdir. Instead, we mount an overlay subtree rooted at these +# directories. +$MOUNT_PROG -t overlay $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT \ + -o ro,redirect_dir=nofollow,nfs_export=on,lowerdir=$upper/lowertestdir.new:$lower/lowertestdir +test_file_handles $SCRATCH_MNT -r +test_file_handles $SCRATCH_MNT/subdir -rp +unmount_dirs + +status=0 +exit diff --git a/tests/overlay/052.out b/tests/overlay/052.out new file mode 100644 index 00000000..f9f4ff74 --- /dev/null +++ b/tests/overlay/052.out @@ -0,0 +1,22 @@ +QA output created by 052 +test_file_handles SCRATCH_MNT/uppertestdir -o upper_file_handles +test_file_handles SCRATCH_MNT/lowertestdir -o lower_file_handles +test_file_handles SCRATCH_MNT -r -i upper_file_handles +test_file_handles SCRATCH_MNT -r -i lower_file_handles +test_file_handles SCRATCH_MNT/uppertestdir.up -o upper_file_handles +test_file_handles SCRATCH_MNT/uppertestdir.lo -o lower_file_handles +test_file_handles SCRATCH_MNT -r -i upper_file_handles +test_file_handles SCRATCH_MNT -r -i lower_file_handles +test_file_handles SCRATCH_MNT/uppertestdir -p -o upper_file_handles +test_file_handles SCRATCH_MNT/lowertestdir -p -o lower_file_handles +test_file_handles SCRATCH_MNT/uppertestdir/subdir -p -o upper_subdir_file_handles +test_file_handles SCRATCH_MNT/lowertestdir/subdir -p -o lower_subdir_file_handles +test_file_handles SCRATCH_MNT -rp -i upper_file_handles +test_file_handles SCRATCH_MNT -rp -i lower_file_handles +test_file_handles SCRATCH_MNT -rp -i upper_subdir_file_handles +test_file_handles SCRATCH_MNT -rp -i lower_subdir_file_handles +test_file_handles SCRATCH_MNT/lowertestdir.new -rp -i lower_subdir_file_handles +test_file_handles SCRATCH_MNT/lowertestdir -rp +test_file_handles SCRATCH_MNT/lowertestdir/subdir -rp +test_file_handles SCRATCH_MNT -r +test_file_handles SCRATCH_MNT/subdir -rp diff --git a/tests/overlay/group b/tests/overlay/group index 9b00e303..07dcf52b 100644 --- a/tests/overlay/group +++ b/tests/overlay/group @@ -52,3 +52,4 @@ 049 auto quick copyup redirect 050 auto quick copyup hardlink exportfs 051 auto quick copyup hardlink exportfs nonsamefs +052 auto quick copyup redirect exportfs -- 2.30.2