'\" t
.\"     Title: xprt_adjust_cwnd
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Linux Networking
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "XPRT_ADJUST_CWND" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Linux Networking"
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.SH "NAME"
xprt_adjust_cwnd \- adjust transport congestion window
.SH "SYNOPSIS"
.HP \w'void\ xprt_adjust_cwnd('u
.BI "void xprt_adjust_cwnd(struct\ rpc_xprt\ *\ " "xprt" ", struct\ rpc_task\ *\ " "task" ", int\ " "result" ");"
.SH "ARGUMENTS"
.PP
\fIxprt\fR
.RS 4
pointer to xprt
.RE
.PP
\fItask\fR
.RS 4
recently completed RPC request used to adjust window
.RE
.PP
\fIresult\fR
.RS 4
result code of completed RPC request
.RE
.SH "DESCRIPTION"
.PP
The transport code maintains an estimate on the maximum number of out\- standing RPC requests, using a smoothed version of the congestion avoidance implemented in 44BSD\&. This is basically the Van Jacobson congestion algorithm: If a retransmit occurs, the congestion window is halved; otherwise, it is incremented by 1/cwnd when
.PP
\- a reply is received and \- a full number of requests are outstanding and \- the congestion window hasn\*(Aqt been updated recently\&.
.SH "COPYRIGHT"
.br