Function procinit

freebsd/kern/kern_proc.c:176–201

* Initialize global process hashing structures. */

 * Initialize global process hashing structures.
 */
void
procinit(void)
{
	u_long i;

	sx_init(&allproc_lock, "allproc");
	sx_init(&proctree_lock, "proctree");
	mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
	mtx_init(&procid_lock, "procid", NULL, MTX_DEF);
	LIST_INIT(&allproc);
	pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
	pidhashlock = (pidhash + 1) / 64;
	if (pidhashlock > 0)
		pidhashlock--;
	pidhashtbl_lock = malloc(sizeof(*pidhashtbl_lock) * (pidhashlock + 1),
	    M_PROC, M_WAITOK | M_ZERO);
	for (i = 0; i < pidhashlock + 1; i++)
		sx_init_flags(&pidhashtbl_lock[i], "pidhash", SX_DUPOK);
	pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
	proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
	    proc_ctor, proc_dtor, proc_init, proc_fini,
	    UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
	pgrp_zone = uma_zcreate("PGRP", sizeof(struct pgrp), NULL, NULL,
	    pgrp_init, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
	uihashinit();
}

/*
 * Prepare a proc for use.