Date: Tue, 8 May 2012 17:41:50 +0200
From: Borislav Petkov <bp@amd64.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>, Alex Shi <alex.shi@intel.com>,
        mgorman@suse.de, npiggin@gmail.com, tglx@linutronix.de,
        mingo@redhat.com, arnd@arndb.de, rostedt@goodmis.org,
        fweisbec@gmail.com, jeremy@goop.org, gregkh@linuxfoundation.org,
        glommer@redhat.com, riel@redhat.com, luto@mit.edu, avi@redhat.com,
        len.brown@intel.com, dhowells@redhat.com, fenghua.yu@intel.com,
        yinghai@kernel.org, ak@linux.intel.com, cpw@sgi.com, steiner@sgi.com,
        akpm@linux-foundation.org, penberg@kernel.org, hughd@google.com,
        rientjes@google.com, kosaki.motohiro@jp.fujitsu.com,
        n-horiguchi@ah.jp.nec.com, paul.gortmaker@windriver.com, trenn@suse.de,
        tj@kernel.org, oleg@redhat.com, axboe@kernel.dk,
        kamezawa.hiroyu@jp.fujitsu.com, viro@zeniv.linux.org.uk,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 7/7] x86/tlb: add tlb_flushall_factor into sysfs for
 user change
Message-ID: <20120508154150.GG13568@aftab.osrc.amd.com>
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 <1336489894.16236.51.camel@twins>
 <4FA939B9.6000404@zytor.com>
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On Tue, May 08, 2012 at 08:31:53AM -0700, H. Peter Anvin wrote:
> On 05/08/2012 08:25 AM, Borislav Petkov wrote:
> > 
> > Yep, this was supposed to be for pinpointing the proper entries count.
> > I believe we don't have this thing of having code intree but not really
> > intree - only for testing new silicon. Maybe a debug module or add this
> > to debugfs?
> > 
> 
> We have a lot of that kind of code, it is usually hidden under
> CONFIG_*DEBUG* something.

Then maybe this is where this knob should go, along with adding it to
debugfs instead of sysfs...

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Boris.

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