Provided by: linux-doc-2.6.15_2.6.15-23.39_all
iunique - get a unique inode number
ino_t iunique (struct super_block * sb, ino_t max_reserved);
highest reserved inode number
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.
With a large number of inodes live on the file system this function
currently becomes quite slow.