Re: [PATCH v4 4/8] per-cgroup tcp buffers control

Glauber Costa
2011-10-04T05:44:36Z

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.