powerpc/64s: Implement ptep_clear_flush_young that does not flush TLBs

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Similarly to the x86 commit b13b1d2d86 ("x86/mm: In the PTE swapout
page reclaim case clear the accessed bit instead of flushing the TLB"),
implement ptep_clear_flush_young that does not actually flush the TLB
in the case the referenced bit is cleared.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201217134731.488135-8-npiggin@gmail.com

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Nicholas Piggin 2020-12-17 23:47:31 +10:00 • committed by Michael Ellerman

parent 032b7f0893

commit 3cb1aa7aa3

1 changed files with 20 additions and 3 deletions

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arch/powerpc/include/asm/book3s/64/pgtable.h

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