592 		       struct extent_state *prealloc, u64 split)  in split_state()  argument
599 	prealloc->start = orig->start;  in split_state()
600 	prealloc->end = split - 1;  in split_state()
601 	prealloc->state = orig->state;  in split_state()
604 	node = tree_insert(&tree->state, &orig->rb_node, prealloc->end,  in split_state()
605 			   &prealloc->rb_node, NULL, NULL);  in split_state()
607 		free_extent_state(prealloc);  in split_state()
669 alloc_extent_state_atomic(struct extent_state *prealloc)  in alloc_extent_state_atomic()  argument
671 	if (!prealloc)  in alloc_extent_state_atomic()
672 		prealloc = alloc_extent_state(GFP_ATOMIC);  in alloc_extent_state_atomic()
674 	return prealloc;  in alloc_extent_state_atomic()
702 	struct extent_state *prealloc = NULL;  in __clear_extent_bit()  local
720 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __clear_extent_bit()
728 		prealloc = alloc_extent_state(mask);  in __clear_extent_bit()
787 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
788 		BUG_ON(!prealloc);  in __clear_extent_bit()
789 		err = split_state(tree, state, prealloc, start);  in __clear_extent_bit()
793 		prealloc = NULL;  in __clear_extent_bit()
810 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
811 		BUG_ON(!prealloc);  in __clear_extent_bit()
812 		err = split_state(tree, state, prealloc, end + 1);  in __clear_extent_bit()
819 		clear_state_bit(tree, prealloc, &bits, wake, changeset);  in __clear_extent_bit()
821 		prealloc = NULL;  in __clear_extent_bit()
843 	if (prealloc)  in __clear_extent_bit()
844 		free_extent_state(prealloc);  in __clear_extent_bit()
970 	struct extent_state *prealloc = NULL;  in __set_extent_bit()  local
982 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __set_extent_bit()
990 		prealloc = alloc_extent_state(mask);  in __set_extent_bit()
1008 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1009 		BUG_ON(!prealloc);  in __set_extent_bit()
1010 		err = insert_state(tree, prealloc, start, end,  in __set_extent_bit()
1015 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1016 		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()
1085 		err = split_state(tree, state, prealloc, start);  in __set_extent_bit()
1089 		prealloc = NULL;  in __set_extent_bit()
1120 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1121 		BUG_ON(!prealloc);  in __set_extent_bit()
1127 		err = insert_state(tree, prealloc, start, this_end,  in __set_extent_bit()
1132 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1133 		prealloc = NULL;  in __set_extent_bit()
1150 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1151 		BUG_ON(!prealloc);  in __set_extent_bit()
1152 		err = split_state(tree, state, prealloc, end + 1);  in __set_extent_bit()
1156 		set_state_bits(tree, prealloc, &bits, changeset);  in __set_extent_bit()
1157 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1158 		merge_state(tree, prealloc);  in __set_extent_bit()
1159 		prealloc = NULL;  in __set_extent_bit()
1173 	if (prealloc)  in __set_extent_bit()
1174 		free_extent_state(prealloc);  in __set_extent_bit()
1212 	struct extent_state *prealloc = NULL;  in convert_extent_bit()  local
1226 	if (!prealloc) {  in convert_extent_bit()
1234 		prealloc = alloc_extent_state(GFP_NOFS);  in convert_extent_bit()
1235 		if (!prealloc && !first_iteration)  in convert_extent_bit()
1255 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1256 		if (!prealloc) {  in convert_extent_bit()
1260 		err = insert_state(tree, prealloc, start, end,  in convert_extent_bit()
1264 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1265 		prealloc = NULL;  in convert_extent_bit()
1309 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1310 		if (!prealloc) {  in convert_extent_bit()
1314 		err = split_state(tree, state, prealloc, start);  in convert_extent_bit()
1317 		prealloc = NULL;  in convert_extent_bit()
1348 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1349 		if (!prealloc) {  in convert_extent_bit()
1358 		err = insert_state(tree, prealloc, start, this_end,  in convert_extent_bit()
1362 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1363 		prealloc = NULL;  in convert_extent_bit()
1374 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1375 		if (!prealloc) {  in convert_extent_bit()
1380 		err = split_state(tree, state, prealloc, end + 1);  in convert_extent_bit()
1384 		set_state_bits(tree, prealloc, &bits, NULL);  in convert_extent_bit()
1385 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1386 		clear_state_bit(tree, prealloc, &clear_bits, 0, NULL);  in convert_extent_bit()
1387 		prealloc = NULL;  in convert_extent_bit()
1401 	if (prealloc)  in convert_extent_bit()
1402 		free_extent_state(prealloc);  in convert_extent_bit()