Lines Matching full:split

795  * are split.
802 	struct extent_map *split;
826 	 * because we need to split those two extent maps at the boundaries.
828 	split = btrfs_alloc_extent_map();
859 		 * In case we split the extent map, we want to preserve the
868 		 * split it, we can remove it directly.
876 			if (!split) {
877 				split = split2;
879 				if (!split)
882 			split->start = em->start;
883 			split->len = start - em->start;
886 				split->disk_bytenr = em->disk_bytenr;
887 				split->disk_num_bytes = em->disk_num_bytes;
888 				split->offset = em->offset;
889 				split->ram_bytes = em->ram_bytes;
891 				split->disk_bytenr = em->disk_bytenr;
892 				split->disk_num_bytes = 0;
893 				split->offset = 0;
894 				split->ram_bytes = split->len;
897 			split->generation = gen;
898 			split->flags = flags;
899 			replace_extent_mapping(inode, em, split, modified);
900 			btrfs_free_extent_map(split);
901 			split = split2;
905 			if (!split) {
906 				split = split2;
908 				if (!split)
911 			split->start = end;
912 			split->len = em_end - end;
913 			split->disk_bytenr = em->disk_bytenr;
914 			split->flags = flags;
915 			split->generation = gen;
918 				split->disk_num_bytes = em->disk_num_bytes;
919 				split->offset = em->offset + end - em->start;
920 				split->ram_bytes = em->ram_bytes;
922 				split->disk_num_bytes = 0;
923 				split->offset = 0;
924 				split->ram_bytes = split->len;
928 				replace_extent_mapping(inode, em, split, modified);
932 				ret = add_extent_mapping(inode, split, modified);
938 			btrfs_free_extent_map(split);
939 			split = NULL;
952 			 *    maps for split operations, @split and @split2.
964 				ASSERT(!split);
984 	btrfs_free_extent_map(split);
1030  * Split off the first pre bytes from the extent_map at [start, start + len],
1033  * This function is used when an ordered_extent needs to be split.