X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Ftfrc.h;h=8a8462b4a4ddcdf18dfc4fef04f135f23b02f786;hb=15895b932b8a047a1db7006a4f9ca74485d5a826;hp=31a9b25276fe02d5d951f243b863c735cc8fd3e4;hpb=79acbb3ff2d8095b692e1502b9eb2ccec348de26;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/tfrc.h b/include/linux/tfrc.h
index 31a9b25276f..8a8462b4a4d 100644
--- a/include/linux/tfrc.h
+++ b/include/linux/tfrc.h
@@ -37,10 +37,14 @@ struct tfrc_rx_info {
  * 	@tfrctx_p:	current loss event rate (5.4)
  * 	@tfrctx_rto:	estimate of RTO, equals 4*RTT (4.3)
  * 	@tfrctx_ipi:	inter-packet interval (4.6)
+ *
+ *  Note: X and X_recv are both maintained in units of 64 * bytes/second. This
+ *        enables a finer resolution of sending rates and avoids problems with
+ *        integer arithmetic; u32 is not sufficient as scaling consumes 6 bits.
  */
 struct tfrc_tx_info {
-	__u32 tfrctx_x;
-	__u32 tfrctx_x_recv;
+	__u64 tfrctx_x;
+	__u64 tfrctx_x_recv;
 	__u32 tfrctx_x_calc;
 	__u32 tfrctx_rtt;
 	__u32 tfrctx_p;