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Date: Sat, 01 Feb 2014 17:26:01 -0800
From: "H. Peter Anvin" <hpa@...or.com>
To: Suresh Siddha <sbsiddha@...il.com>,
Linus Torvalds <torvalds@...ux-foundation.org>
CC: Nate Eldredge <nate@...tsmathematics.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...nel.org>,
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 02/01/2014 05:06 PM, Suresh Siddha wrote:
>
> so I will Ack for option "b", as option "a" breaks the features which
> don't take into account cr0.TS.
>
Even "b" does that, no? "a" should be fine as long as we don't ever use
those features in the kernel, even under kernel_fpu_begin/end().
> Meanwhile I have the patch removing the delayed dynamic allocation for
> non-eager fpu. will post it after some testing.
Thanks.
-hpa
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