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SubjectRe: [PATCH v4 25/25] cachefiles: Switch to wait_page_key
On Fri, Mar 05, 2021 at 04:19:01AM +0000, Matthew Wilcox (Oracle) wrote:
> Cachefiles was relying on wait_page_key and wait_bit_key being the
> same layout, which is fragile. Now that wait_page_key is exposed in
> the pagemap.h header, we can remove that fragility. Also switch it
> to use the folio directly instead of the page.

Yikes. That fix itself is something that should go into mainline ASAP as
it fixes a massive landmine instead of mixing it up with the folio
conversion.

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