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authorRoman Zippel <zippel@linux-m68k.org>2008-05-01 07:34:28 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 11:03:58 -0400
commit6f6d6a1a6a1336431a6cba60ace9e97c3a496a19 (patch)
treef32e82fc3a50b6877afa3220bdb6f7ea0582e07f /net/ipv4/tcp_cubic.c
parent71abb3af62dfa52930755f3b6497eafbe1d6ec85 (diff)
rename div64_64 to div64_u64
Rename div64_64 to div64_u64 to make it consistent with the other divide functions, so it clearly includes the type of the divide. Move its definition to math64.h as currently no architecture overrides the generic implementation. They can still override it of course, but the duplicated declarations are avoided. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Cc: Avi Kivity <avi@qumranet.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/ipv4/tcp_cubic.c')
-rw-r--r--net/ipv4/tcp_cubic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index eb5b9854c8c7..4a1221e5e8ee 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -15,8 +15,8 @@
15 15
16#include <linux/mm.h> 16#include <linux/mm.h>
17#include <linux/module.h> 17#include <linux/module.h>
18#include <linux/math64.h>
18#include <net/tcp.h> 19#include <net/tcp.h>
19#include <asm/div64.h>
20 20
21#define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation 21#define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation
22 * max_cwnd = snd_cwnd * beta 22 * max_cwnd = snd_cwnd * beta
@@ -128,7 +128,7 @@ static u32 cubic_root(u64 a)
128 * x = ( 2 * x + a / x ) / 3 128 * x = ( 2 * x + a / x ) / 3
129 * k+1 k k 129 * k+1 k k
130 */ 130 */
131 x = (2 * x + (u32)div64_64(a, (u64)x * (u64)(x - 1))); 131 x = (2 * x + (u32)div64_u64(a, (u64)x * (u64)(x - 1)));
132 x = ((x * 341) >> 10); 132 x = ((x * 341) >> 10);
133 return x; 133 return x;
134} 134}