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SubjectRe: [RFC PATCH v3 1/2] ext4/xfs: add page refcount helper
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@nvidia.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

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