Messages in this thread | | | From | "H. Peter Anvin" <> | Date | Wed, 15 Mar 2017 02:11:48 -0700 | Subject | Re: [PATCH v10 6/7] x86/arch_prctl: Add ARCH_[GET|SET]_CPUID |
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<linux-fsdevel@vger.kernel.org>,"open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@vger.kernel.org>,kvm list <kvm@vger.kernel.org> From: hpa@zytor.com Message-ID: <E47D06A9-AFDA-4A9D-8539-9CC5AB19B395@zytor.com>
On March 14, 2017 12:23:40 PM PDT, Andy Lutomirski <luto@amacapital.net> wrote: >On Tue, Mar 14, 2017 at 12:01 PM, H. Peter Anvin <hpa@zytor.com> wrote: >> and at least theoretically we >> could be indirecting though the ->stack pointer for every one if gcc >> can't tell it won't have changed (we really need to get thread_info >> moved into the task_struct allocation and away from the kernel stack, >> especially since on x86 the pointer is the same size as the vestigial >> structure it points to.) > >Solved by use of time machine: > >commit 15f4eae70d365bba26854c90b6002aaabb18c8aa >Author: Andy Lutomirski <luto@kernel.org> >Date: Tue Sep 13 14:29:25 2016 -0700 > > x86: Move thread_info into task_struct > > >:)
My apologies, -ESTALEBRAINCACHE... -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
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