| Message ID | 20210308155111.53874-12-chandanrlinux@gmail.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | xfs: Tests to verify inode fork extent count overflow detection | expand |
On Mon, Mar 08, 2021 at 09:21:09PM +0530, Chandan Babu R wrote: > This test verifies that XFS does not cause inode fork's extent count to > overflow when remapping extents from one file's inode fork to another. > > Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com> Seems sensible, Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > --- > tests/xfs/535 | 81 +++++++++++++++++++++++++++++++++++++++++++++++ > tests/xfs/535.out | 8 +++++ > tests/xfs/group | 1 + > 3 files changed, 90 insertions(+) > create mode 100755 tests/xfs/535 > create mode 100644 tests/xfs/535.out > > diff --git a/tests/xfs/535 b/tests/xfs/535 > new file mode 100755 > index 00000000..6bb27c92 > --- /dev/null > +++ b/tests/xfs/535 > @@ -0,0 +1,81 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright (c) 2021 Chandan Babu R. All Rights Reserved. > +# > +# FS QA Test 535 > +# > +# Verify that XFS does not cause inode fork's extent count to overflow when > +# remapping extents from one file's inode fork to another. > +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/reflink > +. ./common/inject > + > +# remove previous $seqres.full before test > +rm -f $seqres.full > + > +# real QA test starts here > + > +_supported_fs xfs > +_require_scratch > +_require_scratch_reflink > +_require_xfs_debug > +_require_xfs_io_command "reflink" > +_require_xfs_io_error_injection "reduce_max_iextents" > + > +echo "* Reflink remap extents" > + > +echo "Format and mount fs" > +_scratch_mkfs >> $seqres.full > +_scratch_mount >> $seqres.full > + > +bsize=$(_get_block_size $SCRATCH_MNT) > + > +srcfile=${SCRATCH_MNT}/srcfile > +dstfile=${SCRATCH_MNT}/dstfile > + > +nr_blks=15 > + > +echo "Create \$srcfile having an extent of length $nr_blks blocks" > +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ > + -c fsync $srcfile >> $seqres.full > + > +echo "Create \$dstfile having an extent of length $nr_blks blocks" > +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ > + -c fsync $dstfile >> $seqres.full > + > +echo "Inject reduce_max_iextents error tag" > +_scratch_inject_error reduce_max_iextents 1 > + > +echo "Reflink every other block from \$srcfile into \$dstfile" > +for i in $(seq 1 2 $((nr_blks - 1))); do > + _reflink_range $srcfile $((i * bsize)) $dstfile $((i * bsize)) $bsize \ > + >> $seqres.full 2>&1 > +done > + > +echo "Verify \$dstfile's extent count" > +nextents=$(xfs_get_fsxattr nextents $dstfile) > +if (( $nextents > 10 )); then > + echo "Extent count overflow check failed: nextents = $nextents" > + exit 1 > +fi > + > +# success, all done > +status=0 > +exit > diff --git a/tests/xfs/535.out b/tests/xfs/535.out > new file mode 100644 > index 00000000..cfe50f45 > --- /dev/null > +++ b/tests/xfs/535.out > @@ -0,0 +1,8 @@ > +QA output created by 535 > +* Reflink remap extents > +Format and mount fs > +Create $srcfile having an extent of length 15 blocks > +Create $dstfile having an extent of length 15 blocks > +Inject reduce_max_iextents error tag > +Reflink every other block from $srcfile into $dstfile > +Verify $dstfile's extent count > diff --git a/tests/xfs/group b/tests/xfs/group > index b4f0c777..aed06494 100644 > --- a/tests/xfs/group > +++ b/tests/xfs/group > @@ -532,3 +532,4 @@ > 532 auto quick dir hardlink symlink > 533 auto quick > 534 auto quick reflink > +535 auto quick reflink > -- > 2.29.2 >
diff --git a/tests/xfs/535 b/tests/xfs/535 new file mode 100755 index 00000000..6bb27c92 --- /dev/null +++ b/tests/xfs/535 @@ -0,0 +1,81 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2021 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 535 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# remapping extents from one file's inode fork to another. +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/reflink +. ./common/inject + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs xfs +_require_scratch +_require_scratch_reflink +_require_xfs_debug +_require_xfs_io_command "reflink" +_require_xfs_io_error_injection "reduce_max_iextents" + +echo "* Reflink remap extents" + +echo "Format and mount fs" +_scratch_mkfs >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_block_size $SCRATCH_MNT) + +srcfile=${SCRATCH_MNT}/srcfile +dstfile=${SCRATCH_MNT}/dstfile + +nr_blks=15 + +echo "Create \$srcfile having an extent of length $nr_blks blocks" +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $srcfile >> $seqres.full + +echo "Create \$dstfile having an extent of length $nr_blks blocks" +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $dstfile >> $seqres.full + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +echo "Reflink every other block from \$srcfile into \$dstfile" +for i in $(seq 1 2 $((nr_blks - 1))); do + _reflink_range $srcfile $((i * bsize)) $dstfile $((i * bsize)) $bsize \ + >> $seqres.full 2>&1 +done + +echo "Verify \$dstfile's extent count" +nextents=$(xfs_get_fsxattr nextents $dstfile) +if (( $nextents > 10 )); then + echo "Extent count overflow check failed: nextents = $nextents" + exit 1 +fi + +# success, all done +status=0 +exit diff --git a/tests/xfs/535.out b/tests/xfs/535.out new file mode 100644 index 00000000..cfe50f45 --- /dev/null +++ b/tests/xfs/535.out @@ -0,0 +1,8 @@ +QA output created by 535 +* Reflink remap extents +Format and mount fs +Create $srcfile having an extent of length 15 blocks +Create $dstfile having an extent of length 15 blocks +Inject reduce_max_iextents error tag +Reflink every other block from $srcfile into $dstfile +Verify $dstfile's extent count diff --git a/tests/xfs/group b/tests/xfs/group index b4f0c777..aed06494 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -532,3 +532,4 @@ 532 auto quick dir hardlink symlink 533 auto quick 534 auto quick reflink +535 auto quick reflink
This test verifies that XFS does not cause inode fork's extent count to overflow when remapping extents from one file's inode fork to another. Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com> --- tests/xfs/535 | 81 +++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/535.out | 8 +++++ tests/xfs/group | 1 + 3 files changed, 90 insertions(+) create mode 100755 tests/xfs/535 create mode 100644 tests/xfs/535.out