Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH v2] Revert "mm/pgtable: add stubs for {pmd/pub}_{set/clear}_huge" | Date | Fri, 23 Jul 2021 22:04:10 +1000 |
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Will Deacon <will@kernel.org> writes: > On Wed, 21 Jul 2021 17:02:13 +1000, Michael Ellerman wrote: >> This reverts commit c742199a014de23ee92055c2473d91fe5561ffdf. >> >> c742199a014d ("mm/pgtable: add stubs for {pmd/pub}_{set/clear}_huge") >> breaks arm64 in at least two ways for configurations where PUD or PMD >> folding occur: >> >> 1. We no longer install huge-vmap mappings and silently fall back to >> page-granular entries, despite being able to install block entries >> at what is effectively the PGD level. >> >> [...] > > Thank you Michael! I owe you a beer next time I see you, if we don't go > extinct before then.
No worries, thanks to Christophe for identifying the solution while on vacation!
Beers seem a long way off, but hopefully one day :)
cheers
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