Message-ID: <5543C277.9070208@intel.com>
Date: Fri, 01 May 2015 11:14:15 -0700
From: Dave Hansen <dave.hansen@intel.com>
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To: Bobby Powers <bobbypowers@gmail.com>, linux-kernel@vger.kernel.org
CC: x86@kernel.org, Oleg Nesterov <oleg@redhat.com>,
        Borislav Petkov <bp@suse.de>, Ingo Molnar <mingo@kernel.org>,
        Andy Lutomirski <luto@amacapital.net>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Pekka Riikonen <priikone@iki.fi>,
        Quentin Casasnovas <quentin.casasnovas@oracle.com>,
        Rik van Riel <riel@redhat.com>, Suresh Siddha <sbsiddha@gmail.com>,
        Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH] x86/fpu: always restore_xinit_state() when !use_eager_cpu()
References: <1430085869-4327-1-git-send-email-bobbypowers@gmail.com> <553E4BB2.2040603@intel.com>
In-Reply-To: <553E4BB2.2040603@intel.com>
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On 04/27/2015 07:46 AM, Dave Hansen wrote:
>> > static inline void restore_init_xstate(void)
>> > {
>> >         if (use_xsave())
>> >                 xrstor_state(init_xstate_buf, -1);
>> >         else
>> >                 fxrstor_checking(&init_xstate_buf->i387);
>> > }
> I'll do some testing of this today and make sure it doesn't break the
> things that I saw Oleg's patch "fix".

This looks OK to me.  You can add my tested-by if you like.

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