'\" t
.\"     Title: idr_replace
.\"    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: Basic Kernel Library Functions
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "IDR_REPLACE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Basic Kernel Library Functions"
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.SH "NAME"
idr_replace \- replace pointer for given id
.SH "SYNOPSIS"
.HP \w'void\ *\ idr_replace('u
.BI "void * idr_replace(struct\ idr\ *\ " "idp" ", void\ *\ " "ptr" ", int\ " "id" ");"
.SH "ARGUMENTS"
.PP
\fIidp\fR
.RS 4
idr handle
.RE
.PP
\fIptr\fR
.RS 4
pointer you want associated with the id
.RE
.PP
\fIid\fR
.RS 4
lookup key
.RE
.SH "DESCRIPTION"
.PP
Replace the pointer registered with an id and return the old value\&. A
\fB\-ENOENT\fR
return indicates that
\fIid\fR
was not found\&. A
\fB\-EINVAL\fR
return indicates that
\fIid\fR
was not within valid constraints\&.
.PP
The caller must serialize with writers\&.
.SH "COPYRIGHT"
.br