Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=789675e216617b1331875c42a81f58227a06df91
Commit: 789675e216617b1331875c42a81f58227a06df91
Parent: e870a8efcddaaa3da7e180b6ae21239fb96aa2bb
Author: Eric Dumazet <[EMAIL PROTECTED]>
AuthorDate: Thu Jan 3 20:40:01 2008 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 15:00:35 2008 -0800
[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 <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
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 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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