Re: [PATCH 3/3] x86: do not save callee-preserved registers around lockdep_sys_exit_thunk

[Peter Zijlstra]

On Sun, Mar 01, 2015 at 08:16:18AM -0800, Andy Lutomirski wrote:
> On Fri, Feb 27, 2015 at 4:29 PM, Denys Vlasenko <dvlasenk@xxxxxxxxxx> wrote:
> > Internally, lockdep_sys_exit_thunk saves callee-clobbered registers,
> > and calls a C function, lockdep_sys_exix. Thus, callee-preserved
> > won't be mangled, there is no need to save them.
> >
> > Patch was run-tested.
> 
> Peterz, I think this was your code.

It was, I'm forever unsure on when what register are saved by which
macros/functions.

Thanks!
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