xfs/libxfs/xfs_dir2_data.c

24 		struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_free *bf,
31 	struct xfs_dir2_data_hdr	*hdr)
34 		return ((struct xfs_dir3_data_hdr *)hdr)->best_free;
35 	return hdr->bestfree;
107 	xfs_dir2_data_hdr_t	*hdr;		/* data block header */
127 	hdr = bp->b_addr;
130 	switch (hdr->magic) {
133 		btp = xfs_dir2_block_tail_p(geo, hdr);
146 	end = xfs_dir3_data_end_offset(geo, hdr);
153 	bf = xfs_dir2_data_bestfree_p(mp, hdr);
197 			fa = xfs_dir2_data_freefind_verify(hdr, bf, dup, &dfp);
232 		if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
233 		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
236 						((char *)dep - (char *)hdr));
255 	if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
256 	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
321 	struct xfs_dir2_data_hdr *hdr = bp->b_addr;
323 	switch (hdr->magic) {
408 		if (be64_to_cpu(hdr3->hdr.owner) != dp->i_ino)
461 	struct xfs_dir2_data_hdr	*hdr,
472 	off = (xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr);
510 	*bf_ent = xfs_dir2_data_freefind(hdr, bf, dup);
520 	struct xfs_dir2_data_hdr *hdr,		/* data block header */
527 	off = (xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr);
556 	struct xfs_dir2_data_hdr *hdr,		/* data block pointer */
563 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
564 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
565 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
566 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
569 	new.offset = cpu_to_be16((char *)dup - (char *)hdr);
600 	struct xfs_dir2_data_hdr *hdr,		/* data block header */
606 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
607 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
608 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
609 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
642 	struct xfs_dir2_data_hdr	*hdr,
646 	struct xfs_dir2_data_free	*bf = xfs_dir2_data_bestfree_p(mp, hdr);
647 	void				*addr = hdr;
651 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
652 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
653 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
654 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
673 			xfs_dir2_data_freeinsert(hdr, bf, dup, loghead);
702 	struct xfs_dir2_data_hdr	*hdr;
721 	hdr = bp->b_addr;
732 		hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
734 	bf = xfs_dir2_data_bestfree_p(mp, hdr);
748 	*xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16((char *)dup - (char *)hdr);
769 	struct xfs_dir2_data_hdr *hdr = bp->b_addr;
771 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
772 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
773 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
774 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
776 	xfs_trans_log_buf(args->trans, bp, (uint)((char *)dep - (char *)hdr),
778 		       (char *)hdr - 1));
790 	struct xfs_dir2_data_hdr *hdr = bp->b_addr;
792 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
793 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
794 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
795 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
810 	xfs_dir2_data_hdr_t	*hdr = bp->b_addr;
812 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
813 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
814 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
815 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
820 	xfs_trans_log_buf(args->trans, bp, (uint)((char *)dup - (char *)hdr),
822 		       1 - (char *)hdr));
827 		(uint)((char *)xfs_dir2_data_unused_tag_p(dup) - (char *)hdr),
828 		(uint)((char *)xfs_dir2_data_unused_tag_p(dup) - (char *)hdr +
845 	xfs_dir2_data_hdr_t	*hdr;		/* data block pointer */
854 	hdr = bp->b_addr;
859 	end = xfs_dir3_data_end_offset(args->geo, hdr);
869 		tagp = (__be16 *)((char *)hdr + offset) - 1;
870 		prevdup = (xfs_dir2_data_unused_t *)((char *)hdr + be16_to_cpu(*tagp));
881 			(xfs_dir2_data_unused_t *)((char *)hdr + offset + len);
892 	bf = xfs_dir2_data_bestfree_p(args->dp->i_mount, hdr);
899 		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
900 		dfp2 = xfs_dir2_data_freefind(hdr, bf, postdup);
913 			cpu_to_be16((char *)prevdup - (char *)hdr);
928 			xfs_dir2_data_freeremove(hdr, bf, dfp2, needlogp);
929 			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
933 			dfp = xfs_dir2_data_freeinsert(hdr, bf, prevdup,
945 		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
948 			cpu_to_be16((char *)prevdup - (char *)hdr);
956 			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
957 			xfs_dir2_data_freeinsert(hdr, bf, prevdup, needlogp);
971 		dfp = xfs_dir2_data_freefind(hdr, bf, postdup);
972 		newdup = (xfs_dir2_data_unused_t *)((char *)hdr + offset);
976 			cpu_to_be16((char *)newdup - (char *)hdr);
984 			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
985 			xfs_dir2_data_freeinsert(hdr, bf, newdup, needlogp);
999 		newdup = (xfs_dir2_data_unused_t *)((char *)hdr + offset);
1003 			cpu_to_be16((char *)newdup - (char *)hdr);
1005 		xfs_dir2_data_freeinsert(hdr, bf, newdup, needlogp);
1013 	struct xfs_dir2_data_hdr	*hdr,
1018 	if (hdr->magic != cpu_to_be32(XFS_DIR2_DATA_MAGIC) &&
1019 	    hdr->magic != cpu_to_be32(XFS_DIR3_DATA_MAGIC) &&
1020 	    hdr->magic != cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) &&
1021 	    hdr->magic != cpu_to_be32(XFS_DIR3_BLOCK_MAGIC))
1025 	if (offset < (char *)dup - (char *)hdr)
1027 	if (offset + len > (char *)dup + be16_to_cpu(dup->length) - (char *)hdr)
1029 	if ((char *)dup - (char *)hdr !=
1038 	struct xfs_dir2_data_hdr	*hdr,
1046 	if (be16_to_cpu(dfp->offset) != (char *)newdup - (char *)hdr)
1064 	xfs_dir2_data_hdr_t	*hdr;		/* data block header */
1075 	hdr = bp->b_addr;
1076 	fa = xfs_dir2_data_check_free(hdr, dup, offset, len);
1083 	bf = xfs_dir2_data_bestfree_p(args->dp->i_mount, hdr);
1084 	dfp = xfs_dir2_data_freefind(hdr, bf, dup);
1089 	matchfront = (char *)dup - (char *)hdr == offset;
1090 	matchback = (char *)dup + oldlen - (char *)hdr == offset + len;
1101 				xfs_dir2_data_freeremove(hdr, bf, dfp,
1110 		newdup = (xfs_dir2_data_unused_t *)((char *)hdr + offset + len);
1114 			cpu_to_be16((char *)newdup - (char *)hdr);
1120 			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
1121 			dfp = xfs_dir2_data_freeinsert(hdr, bf, newdup,
1123 			fa = xfs_dir2_data_check_new_free(hdr, dfp, newdup);
1140 		newdup->length = cpu_to_be16(((char *)hdr + offset) - (char *)newdup);
1142 			cpu_to_be16((char *)newdup - (char *)hdr);
1148 			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
1149 			dfp = xfs_dir2_data_freeinsert(hdr, bf, newdup,
1151 			fa = xfs_dir2_data_check_new_free(hdr, dfp, newdup);
1168 		newdup->length = cpu_to_be16(((char *)hdr + offset) - (char *)newdup);
1170 			cpu_to_be16((char *)newdup - (char *)hdr);
1172 		newdup2 = (xfs_dir2_data_unused_t *)((char *)hdr + offset + len);
1176 			cpu_to_be16((char *)newdup2 - (char *)hdr);
1189 				xfs_dir2_data_freeremove(hdr, bf, dfp,
1191 				xfs_dir2_data_freeinsert(hdr, bf, newdup,
1193 				xfs_dir2_data_freeinsert(hdr, bf, newdup2,
1202 			hdr, sizeof(*hdr), __FILE__, __LINE__, fa);
1211 	struct xfs_dir2_data_hdr	*hdr)
1215 	switch (hdr->magic) {
1218 		p = xfs_dir2_block_leaf_p(xfs_dir2_block_tail_p(geo, hdr));
1219 		return p - (void *)hdr;