Re: [PATCH v2 00/21] Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())

From: Linus Torvalds
Date: Fri Apr 05 2019 - 11:55:58 EST


On Fri, Apr 5, 2019 at 3:59 AM Will Deacon <will.deacon@xxxxxxx> wrote:
>
> I've also pushed this series out here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mmiowb
>
> and I would like to get it into -next once the first patch has been acked.

Ack on it all.

With the afore-mentioned slight worry about non-spinlocked IO
ordering, but I _think_ it's purely limited to ia64 and wmb() and
friends should work elsewhere?

Or did I miss something? I think the ia64() mb/rmb/wmb stuff only
works on normal memory on ia64.

Linus