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| author | Eric Dumazet <edumazet@google.com> | 2014-03-19 21:02:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-20 16:22:42 -0400 |
| commit | 632623153196bf183a69686ed9c07eee98ff1bf8 (patch) | |
| tree | 1e09d6a821d8b176f08da6a4e3c24c63a2b2c4ea /net | |
| parent | 88050049e7111f074e8887ba5a4cefc9f8fa8d41 (diff) | |
| download | linux-632623153196bf183a69686ed9c07eee98ff1bf8.tar.bz2 | |
tcp: syncookies: do not use getnstimeofday()
While it is true that getnstimeofday() uses about 40 cycles if TSC
is available, it can use 1600 cycles if hpet is the clocksource.
Switch to get_jiffies_64(), as this is more than enough, and
go back to 60 seconds periods.
Fixes: 8c27bd75f04f ("tcp: syncookies: reduce cookie lifetime to 128 seconds")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions