amap               79 uvm/uvm_amap.c amap_list_insert(struct vm_amap *amap)
amap               81 uvm/uvm_amap.c 	LIST_INSERT_HEAD(&amap_list, amap, am_list);
amap               85 uvm/uvm_amap.c amap_list_remove(struct vm_amap *amap)
amap               87 uvm/uvm_amap.c 	LIST_REMOVE(amap, am_list);
amap              186 uvm/uvm_amap.c 	struct vm_amap *amap;
amap              189 uvm/uvm_amap.c 	amap = pool_get(&uvm_amap_pool, (waitf == M_WAITOK) ? PR_WAITOK : 0);
amap              190 uvm/uvm_amap.c 	if (amap == NULL)
amap              195 uvm/uvm_amap.c 	amap->am_ref = 1;
amap              196 uvm/uvm_amap.c 	amap->am_flags = 0;
amap              198 uvm/uvm_amap.c 	amap->am_ppref = NULL;
amap              200 uvm/uvm_amap.c 	amap->am_maxslot = totalslots;
amap              201 uvm/uvm_amap.c 	amap->am_nslot = slots;
amap              202 uvm/uvm_amap.c 	amap->am_nused = 0;
amap              204 uvm/uvm_amap.c 	amap->am_slots = malloc(totalslots * sizeof(int), M_UVMAMAP,
amap              206 uvm/uvm_amap.c 	if (amap->am_slots == NULL)
amap              209 uvm/uvm_amap.c 	amap->am_bckptr = malloc(totalslots * sizeof(int), M_UVMAMAP, waitf);
amap              210 uvm/uvm_amap.c 	if (amap->am_bckptr == NULL)
amap              213 uvm/uvm_amap.c 	amap->am_anon = malloc(totalslots * sizeof(struct vm_anon *),
amap              215 uvm/uvm_amap.c 	if (amap->am_anon == NULL)
amap              218 uvm/uvm_amap.c 	return(amap);
amap              221 uvm/uvm_amap.c 	free(amap->am_bckptr, M_UVMAMAP);
amap              223 uvm/uvm_amap.c 	free(amap->am_slots, M_UVMAMAP);
amap              225 uvm/uvm_amap.c 	pool_put(&uvm_amap_pool, amap);
amap              240 uvm/uvm_amap.c 	struct vm_amap *amap;
amap              247 uvm/uvm_amap.c 	amap = amap_alloc1(slots, padslots, waitf);
amap              248 uvm/uvm_amap.c 	if (amap) {
amap              249 uvm/uvm_amap.c 		memset(amap->am_anon, 0,
amap              250 uvm/uvm_amap.c 		    amap->am_maxslot * sizeof(struct vm_anon *));
amap              251 uvm/uvm_amap.c 		amap_list_insert(amap);
amap              254 uvm/uvm_amap.c 	UVMHIST_LOG(maphist,"<- done, amap = %p, sz=%lu", amap, sz, 0, 0);
amap              255 uvm/uvm_amap.c 	return(amap);
amap              266 uvm/uvm_amap.c amap_free(struct vm_amap *amap)
amap              270 uvm/uvm_amap.c 	KASSERT(amap->am_ref == 0 && amap->am_nused == 0);
amap              271 uvm/uvm_amap.c 	KASSERT((amap->am_flags & AMAP_SWAPOFF) == 0);
amap              273 uvm/uvm_amap.c 	free(amap->am_slots, M_UVMAMAP);
amap              274 uvm/uvm_amap.c 	free(amap->am_bckptr, M_UVMAMAP);
amap              275 uvm/uvm_amap.c 	free(amap->am_anon, M_UVMAMAP);
amap              277 uvm/uvm_amap.c 	if (amap->am_ppref && amap->am_ppref != PPREF_NONE)
amap              278 uvm/uvm_amap.c 		free(amap->am_ppref, M_UVMAMAP);
amap              280 uvm/uvm_amap.c 	pool_put(&uvm_amap_pool, amap);
amap              282 uvm/uvm_amap.c 	UVMHIST_LOG(maphist,"<- done, freed amap = %p", amap, 0, 0, 0);
amap              298 uvm/uvm_amap.c 	struct vm_amap *amap = entry->aref.ar_amap;
amap              327 uvm/uvm_amap.c 	if (amap->am_nslot >= slotneed) {
amap              329 uvm/uvm_amap.c 		if (amap->am_ppref && amap->am_ppref != PPREF_NONE) {
amap              330 uvm/uvm_amap.c 			amap_pp_adjref(amap, slotoff + slotmapped, slotadd, 1);
amap              334 uvm/uvm_amap.c 		    amap, slotneed, 0, 0);
amap              343 uvm/uvm_amap.c 	if (amap->am_maxslot >= slotneed) {
amap              345 uvm/uvm_amap.c 		if (amap->am_ppref && amap->am_ppref != PPREF_NONE) {
amap              346 uvm/uvm_amap.c 			if ((slotoff + slotmapped) < amap->am_nslot)
amap              347 uvm/uvm_amap.c 				amap_pp_adjref(amap, slotoff + slotmapped, 
amap              348 uvm/uvm_amap.c 				    (amap->am_nslot - (slotoff + slotmapped)),
amap              350 uvm/uvm_amap.c 			pp_setreflen(amap->am_ppref, amap->am_nslot, 1, 
amap              351 uvm/uvm_amap.c 			   slotneed - amap->am_nslot);
amap              354 uvm/uvm_amap.c 		amap->am_nslot = slotneed;
amap              361 uvm/uvm_amap.c 		    amap, slotneed, 0, 0);
amap              375 uvm/uvm_amap.c 	if (amap->am_ppref && amap->am_ppref != PPREF_NONE) {
amap              380 uvm/uvm_amap.c 			free(amap->am_ppref, M_UVMAMAP);
amap              381 uvm/uvm_amap.c 			amap->am_ppref = PPREF_NONE;
amap              403 uvm/uvm_amap.c 	KASSERT(amap->am_maxslot < slotneed);
amap              409 uvm/uvm_amap.c 	slotadded = slotalloc - amap->am_nslot;
amap              412 uvm/uvm_amap.c 	oldsl = amap->am_slots;
amap              413 uvm/uvm_amap.c 	memcpy(newsl, oldsl, sizeof(int) * amap->am_nused);
amap              414 uvm/uvm_amap.c 	amap->am_slots = newsl;
amap              417 uvm/uvm_amap.c 	oldover = amap->am_anon;
amap              418 uvm/uvm_amap.c 	memcpy(newover, oldover, sizeof(struct vm_anon *) * amap->am_nslot);
amap              419 uvm/uvm_amap.c 	memset(newover + amap->am_nslot, 0, sizeof(struct vm_anon *) *
amap              421 uvm/uvm_amap.c 	amap->am_anon = newover;
amap              424 uvm/uvm_amap.c 	oldbck = amap->am_bckptr;
amap              425 uvm/uvm_amap.c 	memcpy(newbck, oldbck, sizeof(int) * amap->am_nslot);
amap              426 uvm/uvm_amap.c 	memset(newbck + amap->am_nslot, 0, sizeof(int) * slotadded); /* XXX: needed? */
amap              427 uvm/uvm_amap.c 	amap->am_bckptr = newbck;
amap              431 uvm/uvm_amap.c 	oldppref = amap->am_ppref;
amap              433 uvm/uvm_amap.c 		memcpy(newppref, oldppref, sizeof(int) * amap->am_nslot);
amap              434 uvm/uvm_amap.c 		memset(newppref + amap->am_nslot, 0, sizeof(int) * slotadded);
amap              435 uvm/uvm_amap.c 		amap->am_ppref = newppref;
amap              436 uvm/uvm_amap.c 		if ((slotoff + slotmapped) < amap->am_nslot)
amap              437 uvm/uvm_amap.c 			amap_pp_adjref(amap, slotoff + slotmapped, 
amap              438 uvm/uvm_amap.c 			    (amap->am_nslot - (slotoff + slotmapped)), 1);
amap              439 uvm/uvm_amap.c 		pp_setreflen(newppref, amap->am_nslot, 1,
amap              440 uvm/uvm_amap.c 		    slotneed - amap->am_nslot);
amap              445 uvm/uvm_amap.c 	amap->am_nslot = slotneed;
amap              446 uvm/uvm_amap.c 	amap->am_maxslot = slotalloc;
amap              457 uvm/uvm_amap.c 	    amap, slotneed, 0, 0);
amap              477 uvm/uvm_amap.c 	struct vm_amap *amap = entry->aref.ar_amap;
amap              483 uvm/uvm_amap.c 	if (slots < amap->am_nused) {
amap              486 uvm/uvm_amap.c 			if (amap->am_anon[lcv] == NULL)
amap              488 uvm/uvm_amap.c 			if (amap->am_anon[lcv]->an_page != NULL)
amap              489 uvm/uvm_amap.c 				pmap_page_protect(amap->am_anon[lcv]->an_page,
amap              496 uvm/uvm_amap.c 	for (lcv = 0 ; lcv < amap->am_nused ; lcv++) {
amap              497 uvm/uvm_amap.c 		slot = amap->am_slots[lcv];
amap              500 uvm/uvm_amap.c 		if (amap->am_anon[slot]->an_page != NULL)
amap              501 uvm/uvm_amap.c 			pmap_page_protect(amap->am_anon[slot]->an_page, prot);
amap              515 uvm/uvm_amap.c amap_wipeout(struct vm_amap *amap)
amap              520 uvm/uvm_amap.c 	UVMHIST_LOG(maphist,"(amap=%p)", amap, 0,0,0);
amap              522 uvm/uvm_amap.c 	KASSERT(amap->am_ref == 0);
amap              524 uvm/uvm_amap.c 	if (__predict_false((amap->am_flags & AMAP_SWAPOFF) != 0)) {
amap              530 uvm/uvm_amap.c 	amap_list_remove(amap);
amap              532 uvm/uvm_amap.c 	for (lcv = 0 ; lcv < amap->am_nused ; lcv++) {
amap              535 uvm/uvm_amap.c 		slot = amap->am_slots[lcv];
amap              536 uvm/uvm_amap.c 		anon = amap->am_anon[slot];
amap              560 uvm/uvm_amap.c 	amap->am_ref = 0;	/* ... was one */
amap              561 uvm/uvm_amap.c 	amap->am_nused = 0;
amap              562 uvm/uvm_amap.c 	amap_free(amap);	/* will unlock and free amap */
amap              584 uvm/uvm_amap.c 	struct vm_amap *amap, *srcamap;
amap              652 uvm/uvm_amap.c 	amap = amap_alloc1(slots, 0, waitf);
amap              653 uvm/uvm_amap.c 	if (amap == NULL) {
amap              669 uvm/uvm_amap.c 		amap->am_ref--;		/* drop final reference to map */
amap              670 uvm/uvm_amap.c 		amap_free(amap);	/* dispose of new (unused) amap */
amap              680 uvm/uvm_amap.c 		amap->am_anon[lcv] =
amap              682 uvm/uvm_amap.c 		if (amap->am_anon[lcv] == NULL)
amap              684 uvm/uvm_amap.c 		simple_lock(&amap->am_anon[lcv]->an_lock);
amap              685 uvm/uvm_amap.c 		amap->am_anon[lcv]->an_ref++;
amap              686 uvm/uvm_amap.c 		simple_unlock(&amap->am_anon[lcv]->an_lock);
amap              687 uvm/uvm_amap.c 		amap->am_bckptr[lcv] = amap->am_nused;
amap              688 uvm/uvm_amap.c 		amap->am_slots[amap->am_nused] = lcv;
amap              689 uvm/uvm_amap.c 		amap->am_nused++;
amap              691 uvm/uvm_amap.c 	memset(&amap->am_anon[lcv], 0,
amap              692 uvm/uvm_amap.c 	    (amap->am_maxslot - lcv) * sizeof(struct vm_anon *));
amap              716 uvm/uvm_amap.c 	entry->aref.ar_amap = amap;
amap              719 uvm/uvm_amap.c 	amap_list_insert(amap);
amap              752 uvm/uvm_amap.c 	struct vm_amap *amap = entry->aref.ar_amap;
amap              763 uvm/uvm_amap.c 	for (lcv = 0 ; lcv < amap->am_nused ; lcv++) {
amap              769 uvm/uvm_amap.c 		slot = amap->am_slots[lcv];
amap              770 uvm/uvm_amap.c 		anon = amap->am_anon[slot];
amap              835 uvm/uvm_amap.c 			amap->am_anon[slot] = nanon;	/* replace */
amap              901 uvm/uvm_amap.c amap_pp_establish(struct vm_amap *amap)
amap              904 uvm/uvm_amap.c 	amap->am_ppref = malloc(sizeof(int) * amap->am_maxslot,
amap              910 uvm/uvm_amap.c 	if (amap->am_ppref == NULL) {
amap              911 uvm/uvm_amap.c 		amap->am_ppref = PPREF_NONE;	/* not using it */
amap              918 uvm/uvm_amap.c 	memset(amap->am_ppref, 0, sizeof(int) * amap->am_maxslot);
amap              919 uvm/uvm_amap.c 	pp_setreflen(amap->am_ppref, 0, amap->am_ref, amap->am_nslot);
amap              930 uvm/uvm_amap.c amap_pp_adjref(struct vm_amap *amap, int curslot, vsize_t slotlen, int adjval)
amap              936 uvm/uvm_amap.c 	ppref = amap->am_ppref;
amap              990 uvm/uvm_amap.c 			amap_wiperange(amap, lcv, len);
amap             1002 uvm/uvm_amap.c amap_wiperange(struct vm_amap *amap, int slotoff, int slots)
amap             1012 uvm/uvm_amap.c 	if (slots < amap->am_nused) {
amap             1019 uvm/uvm_amap.c 		stop = amap->am_nused;
amap             1028 uvm/uvm_amap.c 			if (amap->am_anon[curslot] == NULL)
amap             1031 uvm/uvm_amap.c 			curslot = amap->am_slots[lcv];
amap             1038 uvm/uvm_amap.c 		anon = amap->am_anon[curslot];
amap             1043 uvm/uvm_amap.c 		amap->am_anon[curslot] = NULL;
amap             1044 uvm/uvm_amap.c 		ptr = amap->am_bckptr[curslot];
amap             1045 uvm/uvm_amap.c 		if (ptr != (amap->am_nused - 1)) {
amap             1046 uvm/uvm_amap.c 			amap->am_slots[ptr] =
amap             1047 uvm/uvm_amap.c 			    amap->am_slots[amap->am_nused - 1];
amap             1048 uvm/uvm_amap.c 			amap->am_bckptr[amap->am_slots[ptr]] =
amap             1051 uvm/uvm_amap.c 		amap->am_nused--;
amap               63 uvm/uvm_amap_i.h 	struct vm_amap *amap = aref->ar_amap;
amap               69 uvm/uvm_amap_i.h 	if (slot >= amap->am_nslot)
amap               73 uvm/uvm_amap_i.h 	    amap, offset, amap->am_anon[slot], 0);
amap               74 uvm/uvm_amap_i.h 	return(amap->am_anon[slot]);
amap               91 uvm/uvm_amap_i.h 	struct vm_amap *amap = aref->ar_amap;
amap               98 uvm/uvm_amap_i.h 		amap->am_nslot, 0);
amap              100 uvm/uvm_amap_i.h 	if ((slot + (npages - 1)) >= amap->am_nslot)
amap              103 uvm/uvm_amap_i.h 	memcpy(anons, &amap->am_anon[slot], npages * sizeof(struct vm_anon *));
amap              125 uvm/uvm_amap_i.h 	struct vm_amap *amap = aref->ar_amap;
amap              131 uvm/uvm_amap_i.h 	if (slot >= amap->am_nslot)
amap              136 uvm/uvm_amap_i.h 		if (amap->am_anon[slot] == NULL)
amap              138 uvm/uvm_amap_i.h 		if (amap->am_anon[slot]->an_page != NULL && 
amap              139 uvm/uvm_amap_i.h 		    (amap->am_flags & AMAP_SHARED) != 0) {
amap              140 uvm/uvm_amap_i.h 			pmap_page_protect(amap->am_anon[slot]->an_page,
amap              147 uvm/uvm_amap_i.h 		if (amap->am_anon[slot] != NULL)
amap              150 uvm/uvm_amap_i.h 		amap->am_bckptr[slot] = amap->am_nused;
amap              151 uvm/uvm_amap_i.h 		amap->am_slots[amap->am_nused] = slot;
amap              152 uvm/uvm_amap_i.h 		amap->am_nused++;
amap              154 uvm/uvm_amap_i.h 	amap->am_anon[slot] = anon;
amap              157 uvm/uvm_amap_i.h 	    amap, offset, anon, replace);
amap              171 uvm/uvm_amap_i.h 	struct vm_amap *amap = aref->ar_amap;
amap              177 uvm/uvm_amap_i.h 	if (slot >= amap->am_nslot)
amap              180 uvm/uvm_amap_i.h 	if (amap->am_anon[slot] == NULL)
amap              183 uvm/uvm_amap_i.h 	amap->am_anon[slot] = NULL;
amap              184 uvm/uvm_amap_i.h 	ptr = amap->am_bckptr[slot];
amap              186 uvm/uvm_amap_i.h 	if (ptr != (amap->am_nused - 1)) {	/* swap to keep slots contig? */
amap              187 uvm/uvm_amap_i.h 		amap->am_slots[ptr] = amap->am_slots[amap->am_nused - 1];
amap              188 uvm/uvm_amap_i.h 		amap->am_bckptr[amap->am_slots[ptr]] = ptr;	/* back link */
amap              190 uvm/uvm_amap_i.h 	amap->am_nused--;
amap              191 uvm/uvm_amap_i.h 	UVMHIST_LOG(maphist, "<- done (amap=%p, slot=%ld)", amap, slot,0, 0);
amap              202 uvm/uvm_amap_i.h amap_ref(amap, offset, len, flags)
amap              203 uvm/uvm_amap_i.h 	struct vm_amap *amap;
amap              210 uvm/uvm_amap_i.h 	amap->am_ref++;
amap              212 uvm/uvm_amap_i.h 		amap->am_flags |= AMAP_SHARED;
amap              214 uvm/uvm_amap_i.h 	if (amap->am_ppref == NULL && (flags & AMAP_REFALL) == 0 &&
amap              215 uvm/uvm_amap_i.h 	    len != amap->am_nslot)
amap              216 uvm/uvm_amap_i.h 		amap_pp_establish(amap);
amap              217 uvm/uvm_amap_i.h 	if (amap->am_ppref && amap->am_ppref != PPREF_NONE) {
amap              219 uvm/uvm_amap_i.h 			amap_pp_adjref(amap, 0, amap->am_nslot, 1);
amap              221 uvm/uvm_amap_i.h 			amap_pp_adjref(amap, offset, len, 1);
amap              224 uvm/uvm_amap_i.h 	UVMHIST_LOG(maphist,"<- done!  amap=%p", amap, 0, 0, 0);
amap              237 uvm/uvm_amap_i.h amap_unref(amap, offset, len, all)
amap              238 uvm/uvm_amap_i.h 	struct vm_amap *amap;
amap              246 uvm/uvm_amap_i.h 	    amap, amap->am_ref, amap->am_nused, 0);
amap              252 uvm/uvm_amap_i.h 	if (amap->am_ref-- == 1) {
amap              253 uvm/uvm_amap_i.h 		amap_wipeout(amap);	/* drops final ref and frees */
amap              261 uvm/uvm_amap_i.h 	if (amap->am_ref == 1 && (amap->am_flags & AMAP_SHARED) != 0)
amap              262 uvm/uvm_amap_i.h 		amap->am_flags &= ~AMAP_SHARED;	/* clear shared flag */
amap              264 uvm/uvm_amap_i.h 	if (amap->am_ppref == NULL && all == 0 && len != amap->am_nslot)
amap              265 uvm/uvm_amap_i.h 		amap_pp_establish(amap);
amap              266 uvm/uvm_amap_i.h 	if (amap->am_ppref && amap->am_ppref != PPREF_NONE) {
amap              268 uvm/uvm_amap_i.h 			amap_pp_adjref(amap, 0, amap->am_nslot, -1);
amap              270 uvm/uvm_amap_i.h 			amap_pp_adjref(amap, offset, len, -1);
amap              295 uvm/uvm_fault.c uvmfault_anonget(ufi, amap, anon)
amap              297 uvm/uvm_fault.c 	struct vm_amap *amap;
amap              357 uvm/uvm_fault.c 				uvmfault_unlockall(ufi, amap, NULL, anon);
amap              365 uvm/uvm_fault.c 				uvmfault_unlockall(ufi, amap, NULL, NULL);
amap              382 uvm/uvm_fault.c 				uvmfault_unlockall(ufi, amap, NULL, anon);
amap              393 uvm/uvm_fault.c 				uvmfault_unlockall(ufi, amap, NULL, anon);
amap              454 uvm/uvm_fault.c 					uvmfault_unlockall(ufi, amap, NULL,
amap              486 uvm/uvm_fault.c 					uvmfault_unlockall(ufi, amap, NULL,
amap              523 uvm/uvm_fault.c 			uvmfault_unlockall(ufi, amap, NULL, anon);
amap              572 uvm/uvm_fault.c 	struct vm_amap *amap;
amap              677 uvm/uvm_fault.c 	amap = ufi.entry->aref.ar_amap;		/* top layer */
amap              685 uvm/uvm_fault.c 	if (amap == NULL && uobj == NULL) {
amap              732 uvm/uvm_fault.c 		    amap, uobj, 0);
amap              738 uvm/uvm_fault.c 	if (amap) {
amap              758 uvm/uvm_fault.c 		if (amap) 
amap              771 uvm/uvm_fault.c 		if (amap)
amap              803 uvm/uvm_fault.c 		if (amap == NULL || anons[lcv] == NULL) {
amap             1044 uvm/uvm_fault.c 	result = uvmfault_anonget(&ufi, amap, anon);
amap             1111 uvm/uvm_fault.c 					uvmfault_unlockall(&ufi, amap, uobj,
amap             1182 uvm/uvm_fault.c 			uvmfault_unlockall(&ufi, amap, uobj, oanon);
amap             1245 uvm/uvm_fault.c 		uvmfault_unlockall(&ufi, amap, uobj, oanon);
amap             1286 uvm/uvm_fault.c 	uvmfault_unlockall(&ufi, amap, uobj, oanon);
amap             1336 uvm/uvm_fault.c 		uvmfault_unlockall(&ufi, amap, NULL, NULL);
amap             1387 uvm/uvm_fault.c 		    (locked && amap && 
amap             1391 uvm/uvm_fault.c 				uvmfault_unlockall(&ufi, amap, NULL, NULL);
amap             1505 uvm/uvm_fault.c 					uvmfault_unlockall(&ufi, amap, uobj,
amap             1564 uvm/uvm_fault.c 		if (amap == NULL)
amap             1602 uvm/uvm_fault.c 			uvmfault_unlockall(&ufi, amap, uobj, NULL);
amap             1632 uvm/uvm_fault.c 			if ((amap_flags(amap) & AMAP_SHARED) != 0) {
amap             1709 uvm/uvm_fault.c 		uvmfault_unlockall(&ufi, amap, uobj, NULL);
amap             1753 uvm/uvm_fault.c 	uvmfault_unlockall(&ufi, amap, uobj, NULL);
amap               82 uvm/uvm_fault_i.h uvmfault_unlockall(ufi, amap, uobj, anon)
amap               84 uvm/uvm_fault_i.h 	struct vm_amap *amap;
amap              414 uvm/uvm_loan.c 	struct vm_amap *amap = ufi->entry->aref.ar_amap;
amap              442 uvm/uvm_loan.c 		uvmfault_unlockall(ufi, amap, uobj, NULL);
amap              451 uvm/uvm_loan.c 		uvmfault_unlockall(ufi, amap, NULL, NULL);
amap              485 uvm/uvm_loan.c 		    (locked && amap && amap_lookup(&ufi->entry->aref,
amap              489 uvm/uvm_loan.c 				uvmfault_unlockall(ufi, amap, NULL, NULL);
amap              580 uvm/uvm_loan.c 		uvmfault_unlockall(ufi, amap, uobj, NULL);
amap              913 uvm/uvm_map.c  		struct vm_amap *amap = amap_alloc(size, to_add, M_WAITOK);
amap              915 uvm/uvm_map.c  		new_entry->aref.ar_amap = amap;
amap             2863 uvm/uvm_map.c  	struct vm_amap *amap;
amap             2902 uvm/uvm_map.c  		amap = current->aref.ar_amap;	/* top layer */
amap             2914 uvm/uvm_map.c  		if (amap == NULL || (flags & (PGO_DEACTIVATE|PGO_FREE)) == 0)
amap             2994 uvm/uvm_map.c  				if (amap_refs(amap) > 1)
amap              252 uvm/uvm_mmap.c 	struct vm_amap *amap;
amap              321 uvm/uvm_mmap.c 		amap = entry->aref.ar_amap;	/* top layer */
amap              329 uvm/uvm_mmap.c 			if (amap != NULL) {