suse man page for invalidate_inodes

INVALIDATE_INODES(9)						   The Linux VFS					      INVALIDATE_INODES(9)

NAME
       invalidate_inodes - discard the inodes on a device

SYNOPSIS
       int invalidate_inodes(struct super_block * sb);

ARGUMENTS
       sb
	   superblock

DESCRIPTION
       Discard all of the inodes for a given superblock. If the discard fails because there are busy inodes then a non zero value is returned. If
       the discard is successful all the inodes have been discarded.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						      INVALIDATE_INODES(9)