[Devel] Re: [PATCH] memory.min_usage (seqlock for res_counter)

[KAMEZAWA Hiroyuki]

On Wed, 05 Dec 2007 12:12:22 +0300
Pavel Emelyanov <xemul at openvz.org> wrote:

> Sorry, let me explain it in other words.
> 
> I think, that protection in reader, that guarantees that it
> will see the valid result, is not very important - even if
> we compare usage and limit not atomically nothing serious
> will happen (in this particular case)
> 
Maybe there is no serious situation (now).
But programmers don't assume that the function may not return trustable result.
And I think it shouldn be trustable AMAP.

I'd like to use seq_lock or res_counter_state, here.

BTW, I'm wondering I should hold off my patches until 2.6.25-rc series if they
make things complex.

Thanks,
-Kame


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