xfs/libxfs/xfs_dir2_data.c

875 	xfs_dir2_data_unused_t	*prevdup;	/* unused entry before us */
895 		prevdup = (xfs_dir2_data_unused_t *)((char *)hdr + be16_to_cpu(*tagp));
896 		if (be16_to_cpu(prevdup->freetag) != XFS_DIR2_DATA_FREE_TAG)
897 			prevdup = NULL;
899 		prevdup = NULL;
918 	if (prevdup && postdup) {
922 		 * See if prevdup and/or postdup are in bestfree table.
924 		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
936 		be16_add_cpu(&prevdup->length, len + be16_to_cpu(postdup->length));
937 		*xfs_dir2_data_unused_tag_p(prevdup) =
938 			cpu_to_be16((char *)prevdup - (char *)hdr);
939 		xfs_dir2_data_log_unused(args, bp, prevdup);
958 			dfp = xfs_dir2_data_freeinsert(hdr, bf, prevdup,
961 			ASSERT(dfp->length == prevdup->length);
969 	else if (prevdup) {
970 		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
971 		be16_add_cpu(&prevdup->length, len);
972 		*xfs_dir2_data_unused_tag_p(prevdup) =
973 			cpu_to_be16((char *)prevdup - (char *)hdr);
974 		xfs_dir2_data_log_unused(args, bp, prevdup);
982 			xfs_dir2_data_freeinsert(hdr, bf, prevdup, needlogp);
988 			needscan = be16_to_cpu(prevdup->length) >