Re: [PATCH v3 18/22] asm-generic/atomic: Use __always_inline for fallback wrappers

From: Peter Zijlstra
Date: Wed Feb 19 2020 - 12:06:44 EST


On Wed, Feb 19, 2020 at 08:55:21AM -0800, Paul E. McKenney wrote:
> On Wed, Feb 19, 2020 at 03:47:42PM +0100, Peter Zijlstra wrote:
> > While the fallback wrappers aren't pure wrappers, they are trivial
> > nonetheless, and the function they wrap should determine the final
> > inlining policy.
> >
> > For x86 tinyconfig we observe:
> > - vmlinux baseline: 1315988
> > - vmlinux with patch: 1315928 (-60 bytes)
> >
> > Suggested-by: Mark Rutland <mark.rutland@xxxxxxx>
> > Signed-off-by: Marco Elver <elver@xxxxxxxxxx>
> > Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
>
> And this one and the previous one are also already in -tip, FYI.

That's where I found them ;-) Stole them from tip/locking/kcsan.