563 		       struct extent_state *prealloc, u64 split)  in split_state()  argument
570 	prealloc->start = orig->start;  in split_state()
571 	prealloc->end = split - 1;  in split_state()
572 	prealloc->state = orig->state;  in split_state()
575 	node = tree_insert(&tree->state, &orig->rb_node, prealloc->end,  in split_state()
576 			   &prealloc->rb_node, NULL, NULL);  in split_state()
578 		free_extent_state(prealloc);  in split_state()
640 alloc_extent_state_atomic(struct extent_state *prealloc)  in alloc_extent_state_atomic()  argument
642 	if (!prealloc)  in alloc_extent_state_atomic()
643 		prealloc = alloc_extent_state(GFP_ATOMIC);  in alloc_extent_state_atomic()
645 	return prealloc;  in alloc_extent_state_atomic()
675 	struct extent_state *prealloc = NULL;  in __clear_extent_bit()  local
693 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __clear_extent_bit()
701 		prealloc = alloc_extent_state(mask);  in __clear_extent_bit()
760 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
761 		BUG_ON(!prealloc);  in __clear_extent_bit()
762 		err = split_state(tree, state, prealloc, start);  in __clear_extent_bit()
766 		prealloc = NULL;  in __clear_extent_bit()
783 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
784 		BUG_ON(!prealloc);  in __clear_extent_bit()
785 		err = split_state(tree, state, prealloc, end + 1);  in __clear_extent_bit()
792 		clear_state_bit(tree, prealloc, &bits, wake, changeset);  in __clear_extent_bit()
794 		prealloc = NULL;  in __clear_extent_bit()
816 	if (prealloc)  in __clear_extent_bit()
817 		free_extent_state(prealloc);  in __clear_extent_bit()
943 	struct extent_state *prealloc = NULL;  in __set_extent_bit()  local
955 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __set_extent_bit()
963 		prealloc = alloc_extent_state(mask);  in __set_extent_bit()
981 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
982 		BUG_ON(!prealloc);  in __set_extent_bit()
983 		err = insert_state(tree, prealloc, start, end,  in __set_extent_bit()
988 		cache_state(prealloc, cached_state);  in __set_extent_bit()
989 		prealloc = NULL;  in __set_extent_bit()
1046 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1047 		BUG_ON(!prealloc);  in __set_extent_bit()
1048 		err = split_state(tree, state, prealloc, start);  in __set_extent_bit()
1052 		prealloc = NULL;  in __set_extent_bit()
1083 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1084 		BUG_ON(!prealloc);  in __set_extent_bit()
1090 		err = insert_state(tree, prealloc, start, this_end,  in __set_extent_bit()
1095 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1096 		prealloc = NULL;  in __set_extent_bit()
1113 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1114 		BUG_ON(!prealloc);  in __set_extent_bit()
1115 		err = split_state(tree, state, prealloc, end + 1);  in __set_extent_bit()
1119 		set_state_bits(tree, prealloc, &bits, changeset);  in __set_extent_bit()
1120 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1121 		merge_state(tree, prealloc);  in __set_extent_bit()
1122 		prealloc = NULL;  in __set_extent_bit()
1136 	if (prealloc)  in __set_extent_bit()
1137 		free_extent_state(prealloc);  in __set_extent_bit()
1175 	struct extent_state *prealloc = NULL;  in convert_extent_bit()  local
1189 	if (!prealloc) {  in convert_extent_bit()
1197 		prealloc = alloc_extent_state(GFP_NOFS);  in convert_extent_bit()
1198 		if (!prealloc && !first_iteration)  in convert_extent_bit()
1218 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1219 		if (!prealloc) {  in convert_extent_bit()
1223 		err = insert_state(tree, prealloc, start, end,  in convert_extent_bit()
1227 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1228 		prealloc = NULL;  in convert_extent_bit()
1272 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1273 		if (!prealloc) {  in convert_extent_bit()
1277 		err = split_state(tree, state, prealloc, start);  in convert_extent_bit()
1280 		prealloc = NULL;  in convert_extent_bit()
1311 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1312 		if (!prealloc) {  in convert_extent_bit()
1321 		err = insert_state(tree, prealloc, start, this_end,  in convert_extent_bit()
1325 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1326 		prealloc = NULL;  in convert_extent_bit()
1337 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1338 		if (!prealloc) {  in convert_extent_bit()
1343 		err = split_state(tree, state, prealloc, end + 1);  in convert_extent_bit()
1347 		set_state_bits(tree, prealloc, &bits, NULL);  in convert_extent_bit()
1348 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1349 		clear_state_bit(tree, prealloc, &clear_bits, 0, NULL);  in convert_extent_bit()
1350 		prealloc = NULL;  in convert_extent_bit()
1364 	if (prealloc)  in convert_extent_bit()
1365 		free_extent_state(prealloc);  in convert_extent_bit()