Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH] powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size | Date | Wed, 19 Feb 2020 23:39:51 +1100 (AEDT) |
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On Thu, 2020-02-06 at 13:50:28 UTC, Christophe Leroy wrote: > Commit 55c8fc3f4930 ("powerpc/8xx: reintroduce 16K pages with HW > assistance") redefined pte_t as a struct of 4 pte_basic_t, because > in 16K pages mode there are four identical entries in the > page table. But the size of hugepage tables is calculated based > of the size of (void *). Therefore, we end up with page tables > of size 1k instead of 4k for 512k pages. > > As 512k hugepage tables are the same size as standard page tables, > ie 4k, use the standard page tables instead of PGT_CACHE tables. > > Fixes: 3fb69c6a1a13 ("powerpc/8xx: Enable 512k hugepage support with HW assistance") > Cc: stable@vger.kernel.org > Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/f2b67ef90b0d5eca0f2255e02cf2f620bc0ddcdb
cheers
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