Re: [PATCH 2/2] x86_64,signal: Remove 'fs' and 'gs' from sigcontext

From: Linus Torvalds
Date: Fri Jul 11 2014 - 22:22:01 EST

On Fri, Jul 11, 2014 at 9:29 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
> As far as I can tell, these fields have been set to zero on save and
> ignored on restore since Linux was imported into git. Rename them
> '__pad1' and '__pad2' to avoid confusion and to allow them to be
> recycled some day.

Shouldn't we actually try to save/restore gs/fs properly? Admittedly,
changing them in the signal handler would be insane, but still.. See
our context switching code with the whole segment selector vs base
save/restore code. Hmm?

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