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authorEric Dumazet <dada1@cosmosbay.com>2008-01-03 20:40:01 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:00:35 -0800
commit789675e216617b1331875c42a81f58227a06df91 (patch)
treebec5c846982ef2ebe5e6970242be146531add9b1 /net/core
parente870a8efcddaaa3da7e180b6ae21239fb96aa2bb (diff)
downloadop-kernel-dev-789675e216617b1331875c42a81f58227a06df91.zip
op-kernel-dev-789675e216617b1331875c42a81f58227a06df91.tar.gz
[NET]: Avoid divides in net/core/gen_estimator.c
We can void divides (as seen with CONFIG_CC_OPTIMIZE_FOR_SIZE=y on x86) changing ((HZ<<idx)/4) to ((HZ/4) << idx) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/gen_estimator.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index daadbcc..86037d1 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -135,7 +135,7 @@ skip:
}
if (!list_empty(&elist[idx].list))
- mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4));
+ mod_timer(&elist[idx].timer, jiffies + ((HZ/4) << idx));
rcu_read_unlock();
}
@@ -191,7 +191,7 @@ int gen_new_estimator(struct gnet_stats_basic *bstats,
}
if (list_empty(&elist[idx].list))
- mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4));
+ mod_timer(&elist[idx].timer, jiffies + ((HZ/4) << idx));
list_add_rcu(&est->list, &elist[idx].list);
return 0;
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