mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
eb8d229ff7
This is yet another one of those tests that looks at what happens when we run out of space for more metadata (in this case, xattrs). Make sure that the 256M we write to the file to try to stimulate ENOSPC gets written to the same place that xfs puts xattr data -- the data device. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
94 lines
2.2 KiB
Bash
Executable File
94 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2017 Ernesto A. Fernandez. All Rights Reserved.
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#
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# FS QA Test 449
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#
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# Fill the device and set as many extended attributes to a file as
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# possible. Then call setfacl on it and, if this fails for lack of
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# space, test that the permissions remain the same.
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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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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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. ./common/attr
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# remove previous $seqres.full before test
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rm -f $seqres.full
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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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_require_scratch
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_require_test
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_require_acls
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_require_attrs trusted
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_scratch_mkfs_sized $((256 * 1024 * 1024)) >> $seqres.full 2>&1
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_scratch_mount || _fail "mount failed"
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# This is a test of xattr behavior when we run out of disk space for xattrs,
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# so make sure the pwrite goes to the data device and not the rt volume.
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test "$FSTYP" = "xfs" && \
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$XFS_IO_PROG -c 'chattr -t' $SCRATCH_MNT
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TFILE=$SCRATCH_MNT/testfile.$seq
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# Create the test file and choose its permissions
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touch $TFILE
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chmod u+rwx $TFILE
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chmod go-rwx $TFILE
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# Try to run out of space so setfacl will fail
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$XFS_IO_PROG -c "pwrite 0 256m" $TFILE >>$seqres.full 2>&1
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i=1
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# Setting acls on an xfs filesystem will succeed even after running out of
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# space for user attributes. Use trusted attributes
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while $SETFATTR_PROG -n trusted.$i -v $(perl -e 'print "a"x1024') $TFILE &>/dev/null; do
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((++i))
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done
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j=1
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ret=0
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while [ $ret -eq 0 ]; do
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ret=1
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while [ $j -le 1000 ]; do
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# On btrfs, setfattr will sometimes fail when free space is
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# low, long before it's actually exhausted. Insist until it
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# fails consistently.
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$SETFATTR_PROG -n trusted.$i"x"$j $TFILE &>/dev/null
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ret=$(( $ret && $? ))
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((++j))
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done
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j=1
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((++i))
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done
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if setfacl -m m:r $TFILE &>/dev/null; then
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# setfacl succeeded, so the test was meaningless
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# The filesystem might still have an issue
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_notrun "$FSTYP succeeds in setting acls despite running out of space for user attrs"
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fi
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# Since setfacl failed, the permissions should not have changed
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stat -c %A $TFILE
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status=0
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exit
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