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Date: Thu, 23 Aug 2012 12:54:56 -0500
From: Nathan Zimmer <nzimmer@sgi.com>
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To: Eric Dumazet <eric.dumazet@gmail.com>
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Subject: Re: [PATCH] fs/proc: Move kfree outside pde_unload_lock
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On 08/22/2012 04:42 PM, Eric Dumazet wrote:
> On Wed, 2012-08-22 at 20:28 +0200, Eric Dumazet wrote:
>
>> Thats interesting, but if you really want this to fly, one RCU
>> conversion would be much better ;)
>>
>> pde_users would be an atomic_t and you would avoid the spinlock
>> contention.
> Here is what I had in mind, I would be interested to know how it helps a 512 core machine ;)
>
Thanks, I knew if I just took my time and read the rcu documentation
thoroughly that the answer would be forthcoming. ;)

Unfortunately I have to wait till tomorrow to get big box and test it.


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