158 static struct extent_state *alloc_extent_state_atomic(struct extent_state *prealloc)  in alloc_extent_state_atomic()  argument
160 	if (!prealloc)  in alloc_extent_state_atomic()
161 		prealloc = alloc_extent_state(GFP_ATOMIC);  in alloc_extent_state_atomic()
163 	return prealloc;  in alloc_extent_state_atomic()
458 		       struct extent_state *prealloc, u64 split)  in split_state()  argument
466 	prealloc->start = orig->start;  in split_state()
467 	prealloc->end = split - 1;  in split_state()
468 	prealloc->state = orig->state;  in split_state()
479 		if (prealloc->end < entry->start) {  in split_state()
481 		} else if (prealloc->end > entry->end) {  in split_state()
484 			free_extent_state(prealloc);  in split_state()
489 	rb_link_node(&prealloc->rb_node, parent, node);  in split_state()
490 	rb_insert_color(&prealloc->rb_node, &tree->state);  in split_state()
563 	struct extent_state *prealloc = NULL;  in __clear_extent_bit()  local
585 	if (!prealloc) {  in __clear_extent_bit()
593 		prealloc = alloc_extent_state(mask);  in __clear_extent_bit()
648 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
649 		if (!prealloc)  in __clear_extent_bit()
651 		err = split_state(tree, state, prealloc, start);  in __clear_extent_bit()
655 		prealloc = NULL;  in __clear_extent_bit()
670 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
671 		if (!prealloc)  in __clear_extent_bit()
673 		err = split_state(tree, state, prealloc, end + 1);  in __clear_extent_bit()
680 		clear_state_bit(tree, prealloc, bits, wake, changeset);  in __clear_extent_bit()
682 		prealloc = NULL;  in __clear_extent_bit()
704 	if (prealloc)  in __clear_extent_bit()
705 		free_extent_state(prealloc);  in __clear_extent_bit()
987 	struct extent_state *prealloc = NULL;  in __set_extent_bit()  local
1005 	if (!prealloc) {  in __set_extent_bit()
1013 		prealloc = alloc_extent_state(mask);  in __set_extent_bit()
1029 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1030 		if (!prealloc)  in __set_extent_bit()
1032 		prealloc->start = start;  in __set_extent_bit()
1033 		prealloc->end = end;  in __set_extent_bit()
1034 		insert_state_fast(tree, prealloc, p, parent, bits, changeset);  in __set_extent_bit()
1035 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1036 		prealloc = NULL;  in __set_extent_bit()
1103 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1104 		if (!prealloc)  in __set_extent_bit()
1106 		err = split_state(tree, state, prealloc, start);  in __set_extent_bit()
1110 		prealloc = NULL;  in __set_extent_bit()
1141 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1142 		if (!prealloc)  in __set_extent_bit()
1149 		prealloc->start = start;  in __set_extent_bit()
1150 		prealloc->end = this_end;  in __set_extent_bit()
1151 		err = insert_state(tree, prealloc, bits, changeset);  in __set_extent_bit()
1155 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1156 		prealloc = NULL;  in __set_extent_bit()
1174 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1175 		if (!prealloc)  in __set_extent_bit()
1177 		err = split_state(tree, state, prealloc, end + 1);  in __set_extent_bit()
1181 		set_state_bits(tree, prealloc, bits, changeset);  in __set_extent_bit()
1182 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1183 		merge_state(tree, prealloc);  in __set_extent_bit()
1184 		prealloc = NULL;  in __set_extent_bit()
1198 	if (prealloc)  in __set_extent_bit()
1199 		free_extent_state(prealloc);  in __set_extent_bit()
1235 	struct extent_state *prealloc = NULL;  in convert_extent_bit()  local
1248 	if (!prealloc) {  in convert_extent_bit()
1256 		prealloc = alloc_extent_state(GFP_NOFS);  in convert_extent_bit()
1257 		if (!prealloc && !first_iteration)  in convert_extent_bit()
1275 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1276 		if (!prealloc) {  in convert_extent_bit()
1280 		prealloc->start = start;  in convert_extent_bit()
1281 		prealloc->end = end;  in convert_extent_bit()
1282 		insert_state_fast(tree, prealloc, p, parent, bits, NULL);  in convert_extent_bit()
1283 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1284 		prealloc = NULL;  in convert_extent_bit()
1326 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1327 		if (!prealloc) {  in convert_extent_bit()
1331 		err = split_state(tree, state, prealloc, start);  in convert_extent_bit()
1334 		prealloc = NULL;  in convert_extent_bit()
1364 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1365 		if (!prealloc) {  in convert_extent_bit()
1374 		prealloc->start = start;  in convert_extent_bit()
1375 		prealloc->end = this_end;  in convert_extent_bit()
1376 		err = insert_state(tree, prealloc, bits, NULL);  in convert_extent_bit()
1379 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1380 		prealloc = NULL;  in convert_extent_bit()
1391 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1392 		if (!prealloc) {  in convert_extent_bit()
1397 		err = split_state(tree, state, prealloc, end + 1);  in convert_extent_bit()
1401 		set_state_bits(tree, prealloc, bits, NULL);  in convert_extent_bit()
1402 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1403 		clear_state_bit(tree, prealloc, clear_bits, 0, NULL);  in convert_extent_bit()
1404 		prealloc = NULL;  in convert_extent_bit()
1418 	if (prealloc)  in convert_extent_bit()
1419 		free_extent_state(prealloc);  in convert_extent_bit()