suse man page for d_alloc

D_ALLOC(9)							   The Linux VFS							D_ALLOC(9)

NAME
       d_alloc - allocate a dcache entry

SYNOPSIS
       struct dentry * d_alloc(struct dentry * parent, const struct qstr * name);

ARGUMENTS
       parent
	   parent of entry to allocate

       name
	   qstr of the name

DESCRIPTION
       Allocates a dentry. It returns NULL if there is insufficient memory available. On a success the dentry is returned. The name passed in is
       copied and the copy passed in may be reused after this call.

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