'\" t
.\"     Title: kfifo_peek
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: FIFO Buffer
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "KFIFO_PEEK" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "FIFO Buffer"
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.SH "NAME"
kfifo_peek \- get data from the fifo without removing
.SH "SYNOPSIS"
.HP \w'kfifo_peek('u
.BI "kfifo_peek(" "fifo" ", " "val" ");"
.SH "ARGUMENTS"
.PP
\fIfifo\fR
.RS 4
address of the fifo to be used
.RE
.PP
\fIval\fR
.RS 4
address where to store the data
.RE
.SH "DESCRIPTION"
.PP
This reads the data from the fifo without removing it from the fifo\&. It returns 0 if the fifo was empty\&. Otherwise it returns the number processed elements\&.
.PP
Note that with only one concurrent reader and one concurrent writer, you don\*(Aqt need extra locking to use these macro\&.
.SH "COPYRIGHT"
.br