centos man page for check_submounts_and_drop

CHECK_SUBMOUNTS_AND_(9) 					   The Linux VFS					   CHECK_SUBMOUNTS_AND_(9)

NAME
       check_submounts_and_drop - prune dcache, check for submounts and drop

SYNOPSIS
       int check_submounts_and_drop(struct dentry * dentry);

ARGUMENTS
       dentry
	   dentry to prune and drop

DESCRIPTION
       All done as a single atomic operation relative to has_unlinked_ancestor. Returns 0 if successfully unhashed parent. If there were submounts
       then return -EBUSY.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   CHECK_SUBMOUNTS_AND_(9)