Re: [PATCH] btrfs/029: fix wrong usage of name filter

["Misono, Tomohiro" <misono.tomohiro@jp.fujitsu.com>]

On 2017/08/30 20:09, Eryu Guan wrote:
> On Wed, Aug 30, 2017 at 04:38:16PM +0900, Misono, Tomohiro wrote:
>> btrfs/029 uses _filter_testdirs() to filter the name of $TEST_DIR and
>> $SCRATCH_MNT directory.
>>
>> In this function, it calls both _filter_test_dir and _filter_scratch
>> concatenapted by pipe. Therefore if $TEST_DIR is a prefix of
>> $SCRATCH_MNT, this filter function gives wrong filtered name for
>> $SCRATCH_MNT and the test fails.
> 
> Sorry, I'm a bit confused, how could $TEST_DIR be a prefix of
> $SCRATCH_MNT? Won't that fail the test at setup time?

I used "/mnt" for $TEST_DIR and "/mnt_scratch" for $SCRATCH_MNT and hit
this problem because "/mnt_scratch" is filtered to "$TEST_DIR_scrach"
instead of "$SCRATCH_MNT".

I think these are valid directory names and other btrfs tests run correctly
with these names.

Thanks,
Tomohiro