Re: [PATCH 1/3] dax/dm: disable testing on devices that don't support dax

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Zorro Lang <zlang@xxxxxxxxxx> writes:

> On Wed, Feb 05, 2020 at 05:48:16PM -0500, Jeff Moyer wrote:
>> Move the hack out of dmflakey and put it into _require_dm_target.  This
>> fixes up a lot of missed tests that are failing due to the lack of dax
>> support (such as tests on dm-thin, snapshot, etc).
>> 
>> Signed-off-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
>> ---
>>  common/dmflakey |  5 -----
>>  common/rc       | 11 +++++++++++
>>  2 files changed, 11 insertions(+), 5 deletions(-)
>> 
>> diff --git a/common/dmflakey b/common/dmflakey
>> index 2af3924d..b4e11ae9 100644
>> --- a/common/dmflakey
>> +++ b/common/dmflakey
>> @@ -8,11 +8,6 @@ FLAKEY_ALLOW_WRITES=0
>>  FLAKEY_DROP_WRITES=1
>>  FLAKEY_ERROR_WRITES=2
>>  
>> -echo $MOUNT_OPTIONS | grep -q dax
>> -if [ $? -eq 0 ]; then
>> -	_notrun "Cannot run tests with DAX on dmflakey devices"
>> -fi
>
> If we need to remove this for common/dmflakey, why not do the same thing
> in common/dmthin and common/dmdelay etc ?

I didn't realize they had this same code.  I'll make that change,
thanks!

-Jeff

>
>> -
>>  _init_flakey()
>>  {
>>  	local BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV`
>> diff --git a/common/rc b/common/rc
>> index eeac1355..785f34c6 100644
>> --- a/common/rc
>> +++ b/common/rc
>> @@ -1874,6 +1874,17 @@ _require_dm_target()
>>  	_require_sane_bdev_flush $SCRATCH_DEV
>>  	_require_command "$DMSETUP_PROG" dmsetup
>>  
>> +	echo $MOUNT_OPTIONS | grep -q dax
>> +	if [ $? -eq 0 ]; then
>> +		case $target in
>> +		stripe|linear|error)
>> +			;;
>> +		*)
>> +			_notrun "Cannot run tests with DAX on $target devices."
>> +			;;
>> +		esac
>> +	fi
>> +
>>  	modprobe dm-$target >/dev/null 2>&1
>>  
>>  	$DMSETUP_PROG targets 2>&1 | grep -q ^$target
>> -- 
>> 2.19.1
>> 




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