On 10/04/2011 05:16 AM, KAMEZAWA Hiroyuki wrote:

It seems memcg->tcp.tcp_memory_pressure has no locks and not atomic.

no problematic race ?

Thanks,
-Kame

Well,

prior to this patch, it was a global variable. And nobody complained so 
far...

My impression is that the only thing that really needs to be atomic is
the memory accounting, which is already. If we miss a memory pressure 
condition entry, we'll get to it next time.

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