Re: [PATCH v9 04/10] x86: refcount: prevent gcc distortions

[H. Peter Anvin]

On 10/04/18 13:05, Nadav Amit wrote:
> 
> Funny. Immediate-patching is what I was playing with when I encountered the
> gcc issue. Performance got worse instead of improving (or at least staying
> the same), because inlining got crazy.
> 
> Anyhow, wait for my soon-to-be-sent RFC in which I define a macro called
> âcallâ (to reduce the retpoline overhead) before you talk about damage to
> the eyes.
> 

Doing it well is *hard*, as I discovered.  The actual patch is much,
much, larger.

	-hpa