Function pdshare

freebsd/kern/kern_descrip.c:2274–2279

* Share a pwddesc structure. */

 * Share a pwddesc structure.
 */
struct pwddesc *
pdshare(struct pwddesc *pdp)
{
	refcount_acquire(&pdp->pd_refcount);
	return (pdp);
}

/*
 * Unshare a filedesc structure, if necessary by making a copy