[Nouveau] [RFC PATCH v3 1/2] ext4/xfs: add page refcount helper

[Ralph Campbell]

On 10/1/20 10:56 PM, Christoph Hellwig wrote:
> On Thu, Oct 01, 2020 at 11:17:14AM -0700, Ralph Campbell wrote:
>> There are several places where ZONE_DEVICE struct pages assume a reference
>> count == 1 means the page is idle and free. Instead of open coding this,
>> add a helper function to hide this detail.
>>
>> Signed-off-by: Ralph Campbell <rcampbell at nvidia.com>
> 
> Looks good:
> 
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> 

Thanks for the review.
I'll resend this as an independent patch.