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From: Peter Zijlstra <peterz@infradead.org>
To: Vikas Shivappa <vikas.shivappa@intel.com>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org, hpa@zytor.com,
	tglx@linutronix.de, mingo@kernel.org, tj@kernel.org,
	matt.fleming@intel.com, will.auld@intel.com,
	peter.zijlstra@intel.com, h.peter.anvin@intel.com,
	kanaka.d.juvva@intel.com
Subject: Re: [PATCH 4/7] x86/intel_rdt: Implement scheduling support for Intel RDT
Date: Fri, 8 May 2015 10:59:13 +0200	[thread overview]
Message-ID: <20150508085913.GC27504@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <alpine.DEB.2.10.1505071613250.14506@vshiva-Udesk>

On Thu, May 07, 2015 at 04:15:41PM -0700, Vikas Shivappa wrote:
> >No.
> >
> >1) two arch hooks right after one another is FAIL
> >1a) just 'fix' the existing hook
> >2) current is cheap and easily obtainable without passing it as
> >   an argument
> 
> will fix to just use an existing hook in finish_task_switch and
> current(get_current) since the stack would already be changed ..
> 
> Thanks,
> Vikas
> 
> >3) why do you need the hook in the first place?
> >3a) why can't you put this in __switch_to()? This is very much x86 only
> >    code.

^ please also answer 3, why can't this go in __swtich_to()?

  reply	other threads:[~2015-05-08  8:59 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-02  1:36 [PATCH V6 0/7] x86/intel_rdt: Intel Cache Allocation Technology Vikas Shivappa
2015-05-02  1:36 ` [PATCH 1/7] x86/intel_rdt: Intel Cache Allocation Technology detection Vikas Shivappa
2015-05-02 18:35   ` Peter Zijlstra
2015-05-02  1:36 ` [PATCH 2/7] x86/intel_rdt: Adds support for Class of service management Vikas Shivappa
2015-05-02 18:38   ` Peter Zijlstra
2015-05-04 17:31     ` Vikas Shivappa
2015-05-02  1:36 ` [PATCH 3/7] x86/intel_rdt: Support cache bit mask for Intel CAT Vikas Shivappa
2015-05-02 18:46   ` Peter Zijlstra
2015-05-04 17:30     ` Vikas Shivappa
2015-05-06  8:09       ` Peter Zijlstra
2015-05-06  8:30         ` Matt Fleming
2015-05-06 16:48         ` Vikas Shivappa
2015-05-06  8:11       ` Peter Zijlstra
2015-05-06 18:09         ` Vikas Shivappa
2015-05-02  1:36 ` [PATCH 4/7] x86/intel_rdt: Implement scheduling support for Intel RDT Vikas Shivappa
2015-05-02 18:51   ` Peter Zijlstra
2015-05-04 18:39     ` Vikas Shivappa
2015-05-06  7:48       ` Peter Zijlstra
2015-05-07 23:15         ` Vikas Shivappa
2015-05-08  8:59           ` Peter Zijlstra [this message]
2015-05-08 20:55             ` Vikas Shivappa
2015-05-06  0:19     ` Vikas Shivappa
2015-05-06  7:50       ` Peter Zijlstra
2015-05-02  1:36 ` [PATCH 5/7] x86/intel_rdt: Software Cache for IA32_PQR_MSR Vikas Shivappa
2015-05-02  1:36 ` [PATCH 6/7] x86/intel_rdt: Intel haswell CAT enumeration Vikas Shivappa
2015-05-02  1:36 ` [PATCH 7/7] x86/intel_rdt: Add CAT documentation and usage guide Vikas Shivappa
  -- strict thread matches above, loose matches on Subject: below --
2015-05-11 19:02 [PATCH V7 0/7] x86/intel_rdt: Intel Cache Allocation support Vikas Shivappa
2015-05-11 19:02 ` [PATCH 4/7] x86/intel_rdt: Implement scheduling support for Intel RDT Vikas Shivappa
2015-05-15 19:39   ` Thomas Gleixner
2015-05-18 18:01     ` Vikas Shivappa
2015-05-18 18:45       ` Thomas Gleixner
2015-05-18 19:18         ` Vikas Shivappa
2015-03-12 23:16 [PATCH V5 0/7] x86/intel_rdt: Intel Cache Allocation Technology Vikas Shivappa
2015-03-12 23:16 ` [PATCH 4/7] x86/intel_rdt: Implement scheduling support for Intel RDT Vikas Shivappa
2015-02-24 23:16 [PATCH V4 0/7] x86/intel_rdt: Intel Cache Allocation Technology Vikas Shivappa
2015-02-24 23:16 ` [PATCH 4/7] x86/intel_rdt: Implement scheduling support for Intel RDT Vikas Shivappa

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