From mboxrd@z Thu Jan 1 00:00:00 1970 From: Omar Sandoval Subject: [RFC PATCH xfstests] generic: add smoke test for AT_LINK_REPLACE Date: Wed, 29 Jan 2020 00:58:27 -0800 Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: Sender: fstests-owner@vger.kernel.org To: linux-fsdevel@vger.kernel.org, Al Viro Cc: kernel-team@fb.com, linux-api@vger.kernel.org, David Howells , Amir Goldstein , Xi Wang , fstests@vger.kernel.org List-Id: linux-api@vger.kernel.org From: Omar Sandoval Cc: fstests@vger.kernel.org Signed-off-by: Omar Sandoval --- common/rc | 2 +- tests/generic/593 | 97 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/593.out | 6 +++ tests/generic/group | 1 + 4 files changed, 105 insertions(+), 1 deletion(-) create mode 100755 tests/generic/593 create mode 100644 tests/generic/593.out diff --git a/common/rc b/common/rc index eeac1355..257f65a1 100644 --- a/common/rc +++ b/common/rc @@ -2172,7 +2172,7 @@ _require_xfs_io_command() ;; "flink") local testlink=$TEST_DIR/$$.link.xfs_io - testio=`$XFS_IO_PROG -F -f -c "flink $testlink" $testfile 2>&1` + testio=`$XFS_IO_PROG -F -f -c "flink $param $testlink" $testfile 2>&1` rm -f $testlink > /dev/null 2>&1 ;; "-T") diff --git a/tests/generic/593 b/tests/generic/593 new file mode 100755 index 00000000..8a9fee02 --- /dev/null +++ b/tests/generic/593 @@ -0,0 +1,97 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Facebook. All Rights Reserved. +# +# FS QA Test 593 +# +# Smoke test linkat() with AT_LINK_REPLACE. +# +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +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 + +# remove previous $seqres.full before test +rm -f $seqres.full + +_supported_fs generic +_supported_os Linux +_require_test +_require_xfs_io_command "-T" +_require_xfs_io_command "flink" "-f" + +same_file() { + [[ "$(stat -c '%d %i' "$1")" = "$(stat -c '%d %i' "$2")" ]] +} + +touch "$TEST_DIR/$seq.src" +touch "$TEST_DIR/$seq.tgt" +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.tgt" "$TEST_DIR/$seq.src" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.tgt" || + echo "Target was not replaced" + +# Linking to the same file should be a noop. +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.src" "$TEST_DIR/$seq.src" +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.tgt" "$TEST_DIR/$seq.src" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.tgt" || echo "Target changed?" + +# Should work with O_TMPFILE. +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.tgt" -T "$TEST_DIR" +stat -c '%h' "$TEST_DIR/$seq.tgt" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.tgt" && + echo "Target was not replaced" + +# It's okay if the target doesn't exist. +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.tgt2" "$TEST_DIR/$seq.src" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.tgt2" || + echo "Target was not created" + +# Can't replace directories. +mkdir "$TEST_DIR/$seq.dir" +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.dir" "$TEST_DIR/$seq.src" +cd "$TEST_DIR/$seq.dir" +$XFS_IO_PROG -c "flink -f ." "$TEST_DIR/$seq.src" +$XFS_IO_PROG -c "flink -f .." "$TEST_DIR/$seq.src" +cd - &> /dev/null + +# Can't replace local mount points. +touch "$TEST_DIR/$seq.mnt" +$MOUNT_PROG --bind "$TEST_DIR/$seq.mnt" "$TEST_DIR/$seq.mnt" +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.mnt" "$TEST_DIR/$seq.src" + +# Can replace mount points in other namespaces, though. +unshare -m \ + bash -c "$UMOUNT_PROG $TEST_DIR/$seq.mnt; $XFS_IO_PROG -c \"flink -f $TEST_DIR/$seq.mnt\" $TEST_DIR/$seq.src" +if $UMOUNT_PROG "$TEST_DIR/$seq.mnt" &> /dev/null; then + echo "Mount point was not detached" +fi +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.mnt" || + echo "Mount point was not replaced" + +# Should replace symlinks, not follow them. +touch "$TEST_DIR/$seq.symtgt" +ln -s "$TEST_DIR/$seq.symtgt" "$TEST_DIR/$seq.sym" +$XFS_IO_PROG -c "flink -f $TEST_DIR/$seq.sym" "$TEST_DIR/$seq.src" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.sym" || + echo "Symlink was not replaced" +same_file "$TEST_DIR/$seq.src" "$TEST_DIR/$seq.symtgt" && + echo "Symlink target was replaced" + +rm -rf "$TEST_DIR/$seq."* + +status=0 +exit diff --git a/tests/generic/593.out b/tests/generic/593.out new file mode 100644 index 00000000..834c34bf --- /dev/null +++ b/tests/generic/593.out @@ -0,0 +1,6 @@ +QA output created by 593 +1 +flink: Is a directory +flink: Is a directory +flink: Is a directory +flink: Device or resource busy diff --git a/tests/generic/group b/tests/generic/group index 6fe62505..0a87efca 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -595,3 +595,4 @@ 590 auto prealloc preallocrw 591 auto quick rw pipe splice 592 auto quick encrypt +593 auto quick hardlink -- 2.25.0