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| author | Jarek Poplawski <jarkao2@gmail.com> | 2009-05-25 22:47:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-25 22:47:01 -0700 |
| commit | a1dcb6628b9489504a3be2515580fc4de891f94a (patch) | |
| tree | b78b964c1264b43f1c2899a27c48daf1a254802d /net/core/gen_estimator.c | |
| parent | dfa9264fe1a0c1b46e11c6a4cd3251cd5e1afb71 (diff) | |
| download | linux-stable-a1dcb6628b9489504a3be2515580fc4de891f94a.tar.gz linux-stable-a1dcb6628b9489504a3be2515580fc4de891f94a.tar.bz2 linux-stable-a1dcb6628b9489504a3be2515580fc4de891f94a.zip | |
pkt_sched: gen_estimator: Fix signed integers right-shifts.
Right-shifts of signed integers are implementation-defined so unportable.
With feedback from: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/gen_estimator.c')
| -rw-r--r-- | net/core/gen_estimator.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 6d62d4618cfc..78e5bfc454ae 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -128,12 +128,12 @@ static void est_timer(unsigned long arg) npackets = e->bstats->packets; brate = (nbytes - e->last_bytes)<<(7 - idx); e->last_bytes = nbytes; - e->avbps += ((s64)(brate - e->avbps)) >> e->ewma_log; + e->avbps += (brate >> e->ewma_log) - (e->avbps >> e->ewma_log); e->rate_est->bps = (e->avbps+0xF)>>5; rate = (npackets - e->last_packets)<<(12 - idx); e->last_packets = npackets; - e->avpps += ((long)rate - (long)e->avpps) >> e->ewma_log; + e->avpps += (rate >> e->ewma_log) - (e->avpps >> e->ewma_log); e->rate_est->pps = (e->avpps+0x1FF)>>10; skip: read_unlock(&est_lock); |