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()
704 	struct extent_state *prealloc = NULL;  in __clear_extent_bit()  local
722 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __clear_extent_bit()
730 		prealloc = alloc_extent_state(mask);  in __clear_extent_bit()
789 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
790 		BUG_ON(!prealloc);  in __clear_extent_bit()
791 		err = split_state(tree, state, prealloc, start);  in __clear_extent_bit()
795 		prealloc = NULL;  in __clear_extent_bit()
812 		prealloc = alloc_extent_state_atomic(prealloc);  in __clear_extent_bit()
813 		BUG_ON(!prealloc);  in __clear_extent_bit()
814 		err = split_state(tree, state, prealloc, end + 1);  in __clear_extent_bit()
821 		clear_state_bit(tree, prealloc, &bits, wake, changeset);  in __clear_extent_bit()
823 		prealloc = NULL;  in __clear_extent_bit()
845 	if (prealloc)  in __clear_extent_bit()
846 		free_extent_state(prealloc);  in __clear_extent_bit()
972 	struct extent_state *prealloc = NULL;  in __set_extent_bit()  local
984 	if (!prealloc && gfpflags_allow_blocking(mask)) {  in __set_extent_bit()
992 		prealloc = alloc_extent_state(mask);  in __set_extent_bit()
1010 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1011 		BUG_ON(!prealloc);  in __set_extent_bit()
1012 		err = insert_state(tree, prealloc, start, end,  in __set_extent_bit()
1017 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1018 		prealloc = NULL;  in __set_extent_bit()
1085 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1086 		BUG_ON(!prealloc);  in __set_extent_bit()
1087 		err = split_state(tree, state, prealloc, start);  in __set_extent_bit()
1091 		prealloc = NULL;  in __set_extent_bit()
1122 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1123 		BUG_ON(!prealloc);  in __set_extent_bit()
1129 		err = insert_state(tree, prealloc, start, this_end,  in __set_extent_bit()
1134 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1135 		prealloc = NULL;  in __set_extent_bit()
1152 		prealloc = alloc_extent_state_atomic(prealloc);  in __set_extent_bit()
1153 		BUG_ON(!prealloc);  in __set_extent_bit()
1154 		err = split_state(tree, state, prealloc, end + 1);  in __set_extent_bit()
1158 		set_state_bits(tree, prealloc, &bits, changeset);  in __set_extent_bit()
1159 		cache_state(prealloc, cached_state);  in __set_extent_bit()
1160 		merge_state(tree, prealloc);  in __set_extent_bit()
1161 		prealloc = NULL;  in __set_extent_bit()
1175 	if (prealloc)  in __set_extent_bit()
1176 		free_extent_state(prealloc);  in __set_extent_bit()
1214 	struct extent_state *prealloc = NULL;  in convert_extent_bit()  local
1228 	if (!prealloc) {  in convert_extent_bit()
1236 		prealloc = alloc_extent_state(GFP_NOFS);  in convert_extent_bit()
1237 		if (!prealloc && !first_iteration)  in convert_extent_bit()
1257 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1258 		if (!prealloc) {  in convert_extent_bit()
1262 		err = insert_state(tree, prealloc, start, end,  in convert_extent_bit()
1266 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1267 		prealloc = NULL;  in convert_extent_bit()
1311 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1312 		if (!prealloc) {  in convert_extent_bit()
1316 		err = split_state(tree, state, prealloc, start);  in convert_extent_bit()
1319 		prealloc = NULL;  in convert_extent_bit()
1350 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1351 		if (!prealloc) {  in convert_extent_bit()
1360 		err = insert_state(tree, prealloc, start, this_end,  in convert_extent_bit()
1364 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1365 		prealloc = NULL;  in convert_extent_bit()
1376 		prealloc = alloc_extent_state_atomic(prealloc);  in convert_extent_bit()
1377 		if (!prealloc) {  in convert_extent_bit()
1382 		err = split_state(tree, state, prealloc, end + 1);  in convert_extent_bit()
1386 		set_state_bits(tree, prealloc, &bits, NULL);  in convert_extent_bit()
1387 		cache_state(prealloc, cached_state);  in convert_extent_bit()
1388 		clear_state_bit(tree, prealloc, &clear_bits, 0, NULL);  in convert_extent_bit()
1389 		prealloc = NULL;  in convert_extent_bit()
1403 	if (prealloc)  in convert_extent_bit()
1404 		free_extent_state(prealloc);  in convert_extent_bit()