| commit | c26aed40f4fd18f86bcc6aba557cab700b129b73 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <eric.dumazet@gmail.com> | Thu Nov 18 22:04:46 2010 +0000 |
| committer | David S. Miller <davem@davemloft.net> | Fri Nov 19 10:06:54 2010 -0800 |
| tree | e723d358ddd6facc3af4f37be02fabcf71e3e605 | |
| parent | 8c1592d68bc89248bfd0ee287648f41c1370d826 [diff] |
filter: use reciprocal divide At compile time, we can replace the DIV_K instruction (divide by a constant value) by a reciprocal divide. At exec time, the expensive divide is replaced by a multiply, a less expensive operation on most processors. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>