Re: [PATCH 4/4] xfs: regresion test for fsmap problems with realtime

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On Sun, Sep 12, 2021 at 06:41:22PM +0800, Eryu Guan wrote:
> On Tue, Aug 31, 2021 at 05:12:26PM -0700, Darrick J. Wong wrote:
> > From: Darrick J. Wong <djwong@xxxxxxxxxx>
> > 
> > This is a regression test for:
> > 
> > xfs: make xfs_rtalloc_query_range input parameters const
> > xfs: fix off-by-one error when the last rt extent is in use
> > xfs: make fsmap backend function key parameters const
> > 
> > In which we synthesize an XFS with a realtime volume and a special
> > realtime volume to trip the bugs fixed by all three patches that
> > resulted in incomplete fsmap output.
> > 
> > Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> > ---
> >  tests/xfs/922     |  183 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  tests/xfs/922.out |    2 +
> >  2 files changed, 185 insertions(+)
> >  create mode 100755 tests/xfs/922
> >  create mode 100644 tests/xfs/922.out
> > 
> > 
> > diff --git a/tests/xfs/922 b/tests/xfs/922
> > new file mode 100755
> > index 00000000..95304d57
> > --- /dev/null
> > +++ b/tests/xfs/922
> > @@ -0,0 +1,183 @@
> > +#! /bin/bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +# Copyright (c) 2021 Oracle.  All Rights Reserved.
> > +#
> > +# FS QA Test 922
> > +#
> > +# Regression test for commits:
> > +#
> > +# c02f6529864a ("xfs: make xfs_rtalloc_query_range input parameters const")
> > +# 9ab72f222774 ("xfs: fix off-by-one error when the last rt extent is in use")
> > +# 7e1826e05ba6 ("xfs: make fsmap backend function key parameters const")
> > +#
> > +# These commits fix a bug in fsmap where the data device fsmap function would
> > +# corrupt the high key passed to the rt fsmap function if the data device
> > +# number is smaller than the rt device number and the data device itself is
> > +# smaller than the rt device.
> > +#
> > +. ./common/preamble
> > +_begin_fstest auto fsmap
> > +
> > +_cleanup()
> > +{
> > +	cd /
> > +	rm -r -f $tmp.*
> > +	_scratch_unmount
> > +	test -n "$ddloop" && _destroy_loop_device "$ddloop"
> > +	test -n "$rtloop" && _destroy_loop_device "$rtloop"
> > +	test -n "$ddfile" && rm -f "$ddfile"
> > +	test -n "$rtfile" && rm -f "$rtfile"
> > +	test -n "$old_use_external" && USE_EXTERNAL="$old_use_external"
> > +}
> > +
> > +# real QA test starts here
> > +
> > +# Modify as appropriate.
> > +_supported_fs generic
> 
> _supported_fs xfs
> 
> > +_require_test
> 
> Also need the following _require rules
> 
> _require_loop
> _require_xfs_io_command "falloc"
> _require_xfs_io_command "fpunch"
> _require_xfs_io_command "fsmap"
> 
> I've fixed them all on commit.

Thank you!

--D

> 
> Thanks,
> Eryu



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