Re: [PATCH v2] fstests: generic: Test reserved extent map search routine on deduped file

[Eryu Guan <eguan@redhat.com>]

On Thu, May 12, 2016 at 03:37:39PM +0800, Qu Wenruo wrote:
> For fully deduped file, which means all its file exntents are pointing to
> the same bytenr, btrfs can cause soft lockup when calling fiemap ioctl
> on that file, like the following output:
[snip]
> +
> +# then call fiemap on that file to test both the shared flag and if
> +# reserved extent mapping search will cause soft lockup
> +$XFS_IO_PROG -c "fiemap -v" $file | _filter_fiemap_flags > $tmp
> +cat $tmp >> $seqres.full

$tmp won't be removed after test, in _cleanup() it's removing $tmp.*
$tmp.out is better.

> +
> +# refact the $LOAD_FACTOR to 1 to match the golden output
> +sed -i -e "s/$(($last_extent - 1))/$(($orig_last_extent - 1))/" \
> +	-e "s/$last_extent/$orig_last_extent/" \
> +	-e "s/$end/$orig_end/" $tmp
> +cat $tmp

Same here.

Otherwise looks good to me.

Thanks,
Eryu

> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/generic/352.out b/tests/generic/352.out
> new file mode 100644
> index 0000000..a87c507
> --- /dev/null
> +++ b/tests/generic/352.out
> @@ -0,0 +1,5 @@
> +QA output created by 352
> +wrote 131072/131072 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +0: [0..2097151]: 0x2000
> +1: [2097152..2097407]: 0x2001
> diff --git a/tests/generic/group b/tests/generic/group
> index 36fb759..3f00386 100644
> --- a/tests/generic/group
> +++ b/tests/generic/group
> @@ -354,3 +354,4 @@
>  349 blockdev quick rw
>  350 blockdev quick rw
>  351 blockdev quick rw
> +352 auto clone
> -- 
> 2.5.5
> 
> 
> 
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