Re: [patch V3 02/20] x86/process: Unify copy_thread_tls()

From: Linus Torvalds
Date: Wed Nov 13 2019 - 17:10:28 EST


On Wed, Nov 13, 2019 at 1:41 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> See commit: 64604d54d311 ("sched/x86_64: Don't save flags on context switch")
>
> We need "only" make objtool support 32bit :)

Duh, I knew that.

Maybe just a comment in the structure and/or the __switch_to_asm() so
that next time I forget I won't look like such a tool.

The "Save callee-saved registers" comment we have now in the 32-bit
__switch_to_asm() really is misleading and incorrect wrt the pushfl.

Linus