From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <52ED9EA9.7080009@zytor.com> Date: Sat, 01 Feb 2014 17:26:01 -0800 From: "H. Peter Anvin" MIME-Version: 1.0 To: Suresh Siddha , Linus Torvalds CC: Nate Eldredge , Thomas Gleixner , Ingo Molnar , the arch/x86 maintainers , stable , Linux Kernel Mailing List , Maarten Baert , Jan Kara , George Spelvin , Pekka Riikonen Subject: Re: [PATCH] Make math_state_restore() save and restore the interrupt flag References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: 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