sk_memory_allocated_add() has three callers, and returns
to them @memory_allocated.
sk_forced_mem_schedule() is one of them, and ignores
the returned value.
Change sk_memory_allocated_add() to return void.
Change sock_reserve_memory() and __sk_mem_raise_allocated()
to call sk_memory_allocated().
This removes one cache line miss [1] for RPC workloads,
as first skbs in TCP write queue and receive queue go through
sk_forced_mem_schedule().
[1] Cache line holding tcp_memory_allocated.
Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Eric Dumazet
219160be49