'\" t
.\"     Title: iunique
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "IUNIQUE" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "The Linux VFS"
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.SH "NAME"
iunique \- get a unique inode number
.SH "SYNOPSIS"
.HP \w'ino_t\ iunique('u
.BI "ino_t iunique(struct\ super_block\ *\ " "sb" ", ino_t\ " "max_reserved" ");"
.SH "ARGUMENTS"
.PP
\fIstruct super_block * sb\fR
.RS 4
superblock
.RE
.PP
\fIino_t max_reserved\fR
.RS 4
highest reserved inode number
.RE
.SH "DESCRIPTION"
.PP
Obtain an inode number that is unique on the system for a given superblock\&. This is used by file systems that have no natural permanent inode numbering system\&. An inode number is returned that is higher than the reserved limit but unique\&.
.PP
BUGS: With a large number of inodes live on the file system this function currently becomes quite slow\&.
.SH "COPYRIGHT"
.br