On 2021-01-14 07:18, Dan Williams wrote:
To be honest I dislike the entire flags based scheme for communicating
the fact that page reference obtained by madvise needs to be dropped
later. I'd rather pass a non-NULL 'struct page *' than redo
pfn_to_page() conversions in the leaf functions, but that's a much
larger change.

We tried to remove that flag in the past but for different reasons.
I will have another look to see what can be done.

Thanks

--
Oscar Salvador
SUSE L3

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