Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH v2 1/2] powerpc/8xx: Always fault when _PAGE_ACCESSED is not set | Date | Sun, 8 Nov 2020 21:29:39 +1100 (AEDT) |
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On Mon, 12 Oct 2020 08:54:31 +0000 (UTC), Christophe Leroy wrote: > The kernel expects pte_young() to work regardless of CONFIG_SWAP. > > Make sure a minor fault is taken to set _PAGE_ACCESSED when it > is not already set, regardless of the selection of CONFIG_SWAP. > > This adds at least 3 instructions to the TLB miss exception > handlers fast path. Following patch will reduce this overhead. > > [...]
Applied to powerpc/fixes.
[1/2] powerpc/8xx: Always fault when _PAGE_ACCESSED is not set https://git.kernel.org/powerpc/c/29daf869cbab69088fe1755d9dd224e99ba78b56 [2/2] powerpc/8xx: Manage _PAGE_ACCESSED through APG bits in L1 entry https://git.kernel.org/powerpc/c/33fe43cfd9b1c20f6f9899b44bf04e91823ff1c9
cheers
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