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(parent: 7c21213) | patch
tcp: use ACCESS_ONCE() in tcp_update_pacing_rate()
authorEric Dumazet <edumazet@google.com>
Thu, 10 Oct 2013 00:14:52 +0000 (17:14 -0700)
committerDavid S. Miller <davem@davemloft.net>
Thu, 10 Oct 2013 04:08:07 +0000 (00:08 -0400)
commit1b091c2155426fe816ad2768043fa871e816da89
treecf6398384e262e3460109a173daea105f88413adtree | snapshot
parent7c212138ff32286da2e6aed046840416db47459ccommit | diff
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>
net/ipv4/tcp_input.c diff | blob | history
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