tcp_memory_pressure 252 include/net/tcp.h extern unsigned long tcp_memory_pressure; tcp_memory_pressure 261 include/net/tcp.h return READ_ONCE(tcp_memory_pressure); tcp_memory_pressure 317 net/ipv4/tcp.c unsigned long tcp_memory_pressure __read_mostly; tcp_memory_pressure 318 net/ipv4/tcp.c EXPORT_SYMBOL_GPL(tcp_memory_pressure); tcp_memory_pressure 329 net/ipv4/tcp.c if (READ_ONCE(tcp_memory_pressure)) tcp_memory_pressure 335 net/ipv4/tcp.c if (!cmpxchg(&tcp_memory_pressure, 0, val)) tcp_memory_pressure 344 net/ipv4/tcp.c if (!READ_ONCE(tcp_memory_pressure)) tcp_memory_pressure 346 net/ipv4/tcp.c val = xchg(&tcp_memory_pressure, 0); tcp_memory_pressure 2601 net/ipv4/tcp_ipv4.c .memory_pressure = &tcp_memory_pressure, tcp_memory_pressure 2034 net/ipv6/tcp_ipv6.c .memory_pressure = &tcp_memory_pressure,