'\" t
.\"     Title: ipc_addid
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: April 2019
.\"    Manual: Kernel IPC facilities
.\"    Source: Kernel Hackers Manual 4.9.168
.\"  Language: English
.\"
.TH "IPC_ADDID" "9" "April 2019" "Kernel Hackers Manual 4\&.9\&." "Kernel IPC facilities"
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.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
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.SH "NAME"
ipc_addid \- add an ipc identifier
.SH "SYNOPSIS"
.HP \w'int\ ipc_addid('u
.BI "int ipc_addid(struct\ ipc_ids\ *\ " "ids" ", struct\ kern_ipc_perm\ *\ " "new" ", int\ " "size" ");"
.SH "ARGUMENTS"
.PP
\fIids\fR
.RS 4
ipc identifier set
.RE
.PP
\fInew\fR
.RS 4
new ipc permission set
.RE
.PP
\fIsize\fR
.RS 4
limit for the number of used ids
.RE
.SH "DESCRIPTION"
.PP
Add an entry \*(Aqnew\*(Aq to the ipc ids idr\&. The permissions object is initialised and the first free entry is set up and the id assigned is returned\&. The \*(Aqnew\*(Aq entry is returned in a locked state on success\&. On failure the entry is not locked and a negative err\-code is returned\&.
.PP
Called with writer ipc_ids\&.rwsem held\&.
.SH "COPYRIGHT"
.br