mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Junho Ryu
4a5cda8102
Several tests unmount then re-mount the scratch filesystem, to check that the content is unchanged; but unmounting a tmpfs is designed to lose its content, which causes such tests to fail unnecessarily. Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Junho Ryu <jayr@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
101 lines
3.0 KiB
Bash
Executable File
101 lines
3.0 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 306
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#
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# Test RW open of a device on a RO fs
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2013 Red Hat, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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umount $BINDFILE
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs generic
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_supported_os Linux
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_require_scratch
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_require_test
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DEVNULL=$SCRATCH_MNT/devnull
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DEVZERO=$SCRATCH_MNT/devzero
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SYMLINK=$SCRATCH_MNT/symlink
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BINDFILE=$SCRATCH_MNT/bindfile
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TARGET=$TEST_DIR/target
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rm -f $seqres.full
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_scratch_mkfs > $seqres.full 2>&1
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_scratch_mount
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rm -f $DEVNULL $DEVZERO
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mknod $DEVNULL c 1 3 || _fail "Could not create devnull device"
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mknod $DEVZERO c 1 5 || _fail "Could not create devzero device"
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touch $BINDFILE || _fail "Could not create bind mount file"
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touch $TARGET || _fail "Could not create symlink target"
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ln -s $TARGET $SYMLINK
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_scratch_remount ro || _fail "Could not remount scratch readonly"
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# We should be able to read & write to/from these devices even on an RO fs
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echo "== try to create new file"
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touch $SCRATCH_MNT/this_should_fail 2>&1 | _filter_scratch
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echo "== pwrite to null device"
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$XFS_IO_PROG -c "pwrite 0 512" $DEVNULL | _filter_xfs_io
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echo "== pread from zero device"
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$XFS_IO_PROG -c "pread 0 512" $DEVZERO | _filter_xfs_io
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echo "== truncating write to null device"
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echo foo > $DEVNULL 2>&1 | _filter_scratch
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echo "== appending write to null device"
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echo foo >> $DEVNULL 2>&1 | _filter_scratch
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echo "== writing to symlink from ro fs to rw fs"
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# Various combinations of O_CREAT & O_TRUNC
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$XFS_IO_PROG -c "pwrite 0 512" $SYMLINK | _filter_xfs_io
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$XFS_IO_PROG -f -c "pwrite 0 512" $SYMLINK | _filter_xfs_io
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$XFS_IO_PROG -t -c "pwrite 0 512" $SYMLINK | _filter_xfs_io
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echo "== write to bind-mounted rw file on ro fs"
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mount --bind $TARGET $BINDFILE
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# with and without -f (adds O_CREAT)
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$XFS_IO_PROG -c "pwrite 0 512" $BINDFILE | _filter_xfs_io
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$XFS_IO_PROG -f -c "pwrite 0 512" $BINDFILE | _filter_xfs_io
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$XFS_IO_PROG -t -c "pwrite 0 512" $BINDFILE | _filter_xfs_io
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# success, all done
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status=0
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exit
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