On Thu, Nov 12, 2015 at 06:41:25PM -0500, Johannes Weiner wrote:
> The number of allocated sockets is used for calculations in the soft
> limit phase, where packets are accepted but the socket is under memory
> pressure. Since there is no soft limit phase in tcp_memcontrol, and
> memory pressure is only entered when packets are already dropped, this
> is actually dead code. Remove it.

Actually, we can get into the soft limit phase due to the global limit
(tcp_memory_pressure is set), but then using per-memcg sockets_allocated
counter is just wrong.

> 
> As this is the last user of parent_cg_proto(), remove that too.
> 
> Signed-off-by: Johannes Weiner <han...@cmpxchg.org>

Reviewed-by: Vladimir Davydov <vdavy...@virtuozzo.com>
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