Re: [PATCH] fs/proc: Move kfree outside pde_unload_lock

[Nathan Zimmer]

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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