linux-kernel - Re: [PATCH] Make math_state_restore() save and restore the interrupt flag

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Message-ID: <CA+55aFzz8a7K+KSB_TkGb1ih1hAg09-0TQusQgE5vwMJGegHDw@mail.gmail.com>
Date:	Sun, 2 Feb 2014 11:15:05 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Suresh Siddha <sbsiddha@...il.com>
Cc:	Nate Eldredge <nate@...tsmathematics.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	"the arch/x86 maintainers" <x86@...nel.org>,
	stable <stable@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Maarten Baert <maarten-baert@...mail.com>,
	Jan Kara <jack@...e.cz>, George Spelvin <linux@...izon.com>,
	Pekka Riikonen <priikone@....fi>
Subject: Re: [PATCH] Make math_state_restore() save and restore the interrupt flag

On Sat, Feb 1, 2014 at 11:19 PM, Suresh Siddha <sbsiddha@...il.com> wrote:
>
> The real fix for Nate's problem will be coming from Linus, with a
> slightly modified option-b that Linus proposed. Linus, please let me
> know if you want me to spin it. I can do it sunday night.

Please do it, since clearly I wasn't aware enough about the whole
non-TS-checking FPU state details.

Also, since this issue doesn't seem to be a recent regression, I'm not
going to take this patch directly (even though I'm planning on doing
-rc1 in a few hours), and expect that I'll get it through the normal
channels (presumably together with the __kernel_fpu_end cleanups). Ok
with everybody?

              Linus
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