IUNIQUE(9)                                The Linux VFS                                IUNIQUE(9)



NAME
       iunique - get a unique inode number

SYNOPSIS
       ino_t iunique(struct super_block * sb, ino_t max_reserved);

ARGUMENTS
       sb
           superblock

       max_reserved
           highest reserved inode number

DESCRIPTION
       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.

       BUGS: With a large number of inodes live on the file system this function currently
       becomes quite slow.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                                IUNIQUE(9)