suse man page for securityfs_create_dir

SECURITYFS_CREATE_DI(9) 					Security Framework					   SECURITYFS_CREATE_DI(9)

NAME
       securityfs_create_dir - create a directory in the securityfs filesystem

SYNOPSIS
       struct dentry * securityfs_create_dir(const char * name, struct dentry * parent);

ARGUMENTS
       name
	   a pointer to a string containing the name of the directory to create.

       parent
	   a pointer to the parent dentry for this file. This should be a directory dentry if set. If this parameter is NULL, then the directory
	   will be created in the root of the securityfs filesystem.

DESCRIPTION
       This function creates a directory in securityfs with the given name.

       This function returns a pointer to a dentry if it succeeds. This pointer must be passed to the securityfs_remove function when the file is
       to be removed (no automatic cleanup happens if your module is unloaded, you are responsible here). If an error occurs, NULL will be
       returned.

       If securityfs is not enabled in the kernel, the value -ENODEV is returned. It is not wise to check for this value, but rather, check for
       NULL or !NULL instead as to eliminate the need for #ifdef in the calling code.

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