Re: [PATCH v4 2/4] generic: test mmap io fom DAX to non-DAX

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On Mon, Apr 17, 2017 at 03:14:13PM +0800, Xiong Zhou wrote:
> Mount TEST_DEV as non-DAX, SCRATCH_DEV as DAX, then
> do mmap DIO from DAX to non-DAX.
> 
> This test is split from generic/413. Since DIO from DAX
> to non-DAX is only supported/doable when device underneath
> has memory(struct page) backend.
> 
> By ndctl looking at SCRATCH_DEV, skip this test if it is
> not in "memory mode".
> 
> Adding helper to check pmem device status, which requires new
> PROGs ndctl to tweaking pmem devices and jq to parse ndctl's
> JSON format outputs.
> 
> Signed-off-by: Xiong Zhou <xzhou@xxxxxxxxxx>
> ---
>  common/rc             |  45 ++++++++++++++++++++
>  tests/generic/423     | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++

generic/423 looks good to me, just need to change the memory mode detection.
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