tree cf6398384e262e3460109a173daea105f88413ad
parent 634fb979e8f3a70f04c1f2f519d0cd1142eb5c1a
author Eric Dumazet <edumazet@google.com> 1381364092 -0700
committer David S. Miller <davem@davemloft.net> 1381378087 -0400

tcp: use ACCESS_ONCE() in tcp_update_pacing_rate()

sk_pacing_rate is read by sch_fq packet scheduler at any time,
with no synchronization, so make sure we update it in a
sensible way. ACCESS_ONCE() is how we instruct compiler
to not do stupid things, like using the memory location
as a temporary variable.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>