[PATCH v2] powerpc/64s: add pte_needs_flush and huge_pmd_needs_flush

[Michael Ellerman]

On Thu, 1 Sep 2022 21:03:34 +1000, Nicholas Piggin wrote:
> Allow PTE changes to avoid flushing the TLB when access permissions are
> being relaxed, the dirty bit is being set, and the accessed bit is being
> changed.
> 
> Relaxing access permissions and setting dirty and accessed bits do not
> require a flush because the MMU will re-load the PTE and notice the
> updates (it may also cause a spurious fault).
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/64s: add pte_needs_flush and huge_pmd_needs_flush
      https://git.kernel.org/powerpc/c/b11931e9adc1a439eab75c97ca4b9f15754cdcb1

cheers