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SubjectRe: [PATCH v2 1/3] powerpc/mmu_gather: Enable RCU_TABLE_FREE even for !SMP case

I'm going to assume you'll take these 3 patches through the powerpc tree
for convenience, a few small nits, but otherwise ACK on the lot.

On Wed, Dec 18, 2019 at 11:05:28AM +0530, Aneesh Kumar K.V wrote:
> A follow up patch is going to make sure we correctly invalidate page walk cache
> before we free page table pages. In order to keep things simple enable
> RCU_TABLE_FREE even for !SMP so that we don't have to fixup the !SMP case
> differently in the followup patch

Perhaps more clearly state that !SMP is broken for Radix/PWC. The above
sorta implies it is, but it's not spelled out in any detail.

> Signed-off-by: Aneesh Kumar K.V <>

Acked-by: Peter Zijlstra (Intel) <>

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