Re: [PATCH v4 00/11] Rework READ_ONCE() to improve codegen

[Peter Zijlstra]

On Wed, Apr 22, 2020 at 09:18:39AM +0100, Will Deacon wrote:
> On Tue, Apr 21, 2020 at 11:42:56AM -0700, Linus Torvalds wrote:
> > On Tue, Apr 21, 2020 at 8:15 AM Will Deacon <will@xxxxxxxxxx> wrote:
> > >
> > > It's me again. This is version four of the READ_ONCE() codegen improvement
> > > patches [...]
> > 
> > Let's just plan on biting the bullet and do this for 5.8. I'm assuming
> > that I'll juet get a pull request from you?
> 
> Sure thing, thanks. I'll get it into -next along with the arm64 bits for
> 5.8, but I'll send it as a separate pull when the time comes. I'll also
> include the sparc32 changes because otherwise the build falls apart and
> we'll get an army of angry robots yelling at us (they seem to form the
> majority of the active sparc32 user base afaict).

So I'm obviously all for these patches; do note however that it collides
most mighty with the KCSAN stuff, which I believe is still pending.