Message-ID: <51ADC859.6060507@linux.vnet.ibm.com>
Date: Tue, 04 Jun 2013 16:28:33 +0530
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Organization: IBM
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To: Andi Kleen <andi@firstfloor.org>
CC: gleb@redhat.com, mingo@redhat.com, jeremy@goop.org, x86@kernel.org,
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        xen-devel@lists.xensource.com, peterz@infradead.org,
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        agraf@suse.de, chegu_vinod@hp.com, torvalds@linux-foundation.org,
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        srivatsa.vaddagiri@gmail.com
Subject: Re: [PATCH RFC V9 0/19] Paravirtualized ticket spinlocks
References: <20130601082145.22955.33596.sendpatchset@codeblue> <20130601201442.GP6123@two.firstfloor.org>
In-Reply-To: <20130601201442.GP6123@two.firstfloor.org>
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On 06/02/2013 01:44 AM, Andi Kleen wrote:
>
> FWIW I use the paravirt spinlock ops for adding lock elision
> to the spinlocks.
>
> This needs to be done at the top level (so the level you're removing)
>
> However I don't like the pv mechanism very much and would
> be fine with using an static key hook in the main path
> like I do for all the other lock types.
>
> It also uses interrupt ops patching, for that it would
> be still needed though.
>

Hi Andi, IIUC, you are okay with the current approach overall right?

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