52 	struct buffer_head	*bh;  in affs_grow_extcache()  local
101 			bh = affs_bread(sb, key);  in affs_grow_extcache()
102 			if (!bh)  in affs_grow_extcache()
104 			key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);  in affs_grow_extcache()
105 			affs_brelse(bh);  in affs_grow_extcache()
119 affs_alloc_extblock(struct inode *inode, struct buffer_head *bh, u32 ext)  in affs_alloc_extblock()  argument
125 	blocknr = affs_alloc_block(inode, bh->b_blocknr);  in affs_alloc_extblock()
143 	tmp = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);  in affs_alloc_extblock()
146 	AFFS_TAIL(sb, bh)->extension = cpu_to_be32(blocknr);  in affs_alloc_extblock()
147 	affs_adjust_checksum(bh, blocknr - tmp);  in affs_alloc_extblock()
148 	mark_buffer_dirty_inode(bh, inode);  in affs_alloc_extblock()
160 	struct buffer_head *bh = AFFS_I(inode)->i_ext_bh;  in affs_get_extblock()  local
162 		get_bh(bh);  in affs_get_extblock()
165 		bh = affs_get_extblock_slow(inode, ext);  in affs_get_extblock()
167 	return bh;  in affs_get_extblock()
174 	struct buffer_head *bh;  in affs_get_extblock_slow()  local
181 		bh = AFFS_I(inode)->i_ext_bh;  in affs_get_extblock_slow()
182 		ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);  in affs_get_extblock_slow()
186 		bh = affs_alloc_extblock(inode, bh, ext);  in affs_get_extblock_slow()
187 		if (IS_ERR(bh))  in affs_get_extblock_slow()
188 			return bh;  in affs_get_extblock_slow()
208 		bh = affs_alloc_extblock(inode, prev_bh, ext);  in affs_get_extblock_slow()
210 		if (IS_ERR(bh))  in affs_get_extblock_slow()
211 			return bh;  in affs_get_extblock_slow()
259 		bh = affs_bread(sb, ext_key);  in affs_get_extblock_slow()
260 		if (!bh)  in affs_get_extblock_slow()
262 		ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);  in affs_get_extblock_slow()
263 		affs_brelse(bh);  in affs_get_extblock_slow()
276 	bh = affs_bread(sb, ext_key);  in affs_get_extblock_slow()
277 	if (!bh)  in affs_get_extblock_slow()
285 	AFFS_I(inode)->i_ext_bh = bh;  in affs_get_extblock_slow()
286 	get_bh(bh);  in affs_get_extblock_slow()
288 	return bh;  in affs_get_extblock_slow()
291 	affs_brelse(bh);  in affs_get_extblock_slow()
467 	struct buffer_head *bh, tmp_bh;  in affs_bread_ino()  local
473 		bh = affs_bread(inode->i_sb, tmp_bh.b_blocknr);  in affs_bread_ino()
474 		if (bh) {  in affs_bread_ino()
475 			bh->b_state |= tmp_bh.b_state;  in affs_bread_ino()
476 			return bh;  in affs_bread_ino()
486 	struct buffer_head *bh, tmp_bh;  in affs_getzeroblk_ino()  local
492 		bh = affs_getzeroblk(inode->i_sb, tmp_bh.b_blocknr);  in affs_getzeroblk_ino()
493 		if (bh) {  in affs_getzeroblk_ino()
494 			bh->b_state |= tmp_bh.b_state;  in affs_getzeroblk_ino()
495 			return bh;  in affs_getzeroblk_ino()
505 	struct buffer_head *bh, tmp_bh;  in affs_getemptyblk_ino()  local
511 		bh = affs_getemptyblk(inode->i_sb, tmp_bh.b_blocknr);  in affs_getemptyblk_ino()
512 		if (bh) {  in affs_getemptyblk_ino()
513 			bh->b_state |= tmp_bh.b_state;  in affs_getemptyblk_ino()
514 			return bh;  in affs_getemptyblk_ino()
526 	struct buffer_head *bh;  in affs_do_readpage_ofs()  local
541 		bh = affs_bread_ino(inode, bidx, create);  in affs_do_readpage_ofs()
542 		if (IS_ERR(bh))  in affs_do_readpage_ofs()
543 			return PTR_ERR(bh);  in affs_do_readpage_ofs()
547 		memcpy(data + pos, AFFS_DATA(bh) + boff, tmp);  in affs_do_readpage_ofs()
549 		affs_brelse(bh);  in affs_do_readpage_ofs()
562 	struct buffer_head *bh, *prev_bh;  in affs_extent_file_ofs()  local
569 	bh = NULL;  in affs_extent_file_ofs()
574 		bh = affs_bread_ino(inode, bidx, 0);  in affs_extent_file_ofs()
575 		if (IS_ERR(bh))  in affs_extent_file_ofs()
576 			return PTR_ERR(bh);  in affs_extent_file_ofs()
579 		memset(AFFS_DATA(bh) + boff, 0, tmp);  in affs_extent_file_ofs()
580 		be32_add_cpu(&AFFS_DATA_HEAD(bh)->size, tmp);  in affs_extent_file_ofs()
581 		affs_fix_checksum(sb, bh);  in affs_extent_file_ofs()
582 		mark_buffer_dirty_inode(bh, inode);  in affs_extent_file_ofs()
586 		bh = affs_bread_ino(inode, bidx - 1, 0);  in affs_extent_file_ofs()
587 		if (IS_ERR(bh))  in affs_extent_file_ofs()
588 			return PTR_ERR(bh);  in affs_extent_file_ofs()
592 		prev_bh = bh;  in affs_extent_file_ofs()
593 		bh = affs_getzeroblk_ino(inode, bidx);  in affs_extent_file_ofs()
594 		if (IS_ERR(bh))  in affs_extent_file_ofs()
598 		AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);  in affs_extent_file_ofs()
599 		AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);  in affs_extent_file_ofs()
600 		AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);  in affs_extent_file_ofs()
601 		AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);  in affs_extent_file_ofs()
602 		affs_fix_checksum(sb, bh);  in affs_extent_file_ofs()
603 		bh->b_state &= ~(1UL << BH_New);  in affs_extent_file_ofs()
604 		mark_buffer_dirty_inode(bh, inode);  in affs_extent_file_ofs()
612 			AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);  in affs_extent_file_ofs()
613 			affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);  in affs_extent_file_ofs()
620 	affs_brelse(bh);  in affs_extent_file_ofs()
626 	return PTR_ERR(bh);  in affs_extent_file_ofs()
694 	struct buffer_head *bh, *prev_bh;  in affs_write_end_ofs()  local
714 	bh = NULL;  in affs_write_end_ofs()
720 		bh = affs_bread_ino(inode, bidx, 0);  in affs_write_end_ofs()
721 		if (IS_ERR(bh)) {  in affs_write_end_ofs()
722 			written = PTR_ERR(bh);  in affs_write_end_ofs()
727 		memcpy(AFFS_DATA(bh) + boff, data + from, tmp);  in affs_write_end_ofs()
728 		be32_add_cpu(&AFFS_DATA_HEAD(bh)->size, tmp);  in affs_write_end_ofs()
729 		affs_fix_checksum(sb, bh);  in affs_write_end_ofs()
730 		mark_buffer_dirty_inode(bh, inode);  in affs_write_end_ofs()
735 		bh = affs_bread_ino(inode, bidx - 1, 0);  in affs_write_end_ofs()
736 		if (IS_ERR(bh)) {  in affs_write_end_ofs()
737 			written = PTR_ERR(bh);  in affs_write_end_ofs()
742 		prev_bh = bh;  in affs_write_end_ofs()
743 		bh = affs_getemptyblk_ino(inode, bidx);  in affs_write_end_ofs()
744 		if (IS_ERR(bh))  in affs_write_end_ofs()
746 		memcpy(AFFS_DATA(bh), data + from, bsize);  in affs_write_end_ofs()
747 		if (buffer_new(bh)) {  in affs_write_end_ofs()
748 			AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);  in affs_write_end_ofs()
749 			AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);  in affs_write_end_ofs()
750 			AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);  in affs_write_end_ofs()
751 			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(bsize);  in affs_write_end_ofs()
752 			AFFS_DATA_HEAD(bh)->next = 0;  in affs_write_end_ofs()
753 			bh->b_state &= ~(1UL << BH_New);  in affs_write_end_ofs()
761 				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);  in affs_write_end_ofs()
762 				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);  in affs_write_end_ofs()
767 		affs_fix_checksum(sb, bh);  in affs_write_end_ofs()
768 		mark_buffer_dirty_inode(bh, inode);  in affs_write_end_ofs()
774 		prev_bh = bh;  in affs_write_end_ofs()
775 		bh = affs_bread_ino(inode, bidx, 1);  in affs_write_end_ofs()
776 		if (IS_ERR(bh))  in affs_write_end_ofs()
780 		memcpy(AFFS_DATA(bh), data + from, tmp);  in affs_write_end_ofs()
781 		if (buffer_new(bh)) {  in affs_write_end_ofs()
782 			AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);  in affs_write_end_ofs()
783 			AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);  in affs_write_end_ofs()
784 			AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);  in affs_write_end_ofs()
785 			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);  in affs_write_end_ofs()
786 			AFFS_DATA_HEAD(bh)->next = 0;  in affs_write_end_ofs()
787 			bh->b_state &= ~(1UL << BH_New);  in affs_write_end_ofs()
795 				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);  in affs_write_end_ofs()
796 				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);  in affs_write_end_ofs()
799 		} else if (be32_to_cpu(AFFS_DATA_HEAD(bh)->size) < tmp)  in affs_write_end_ofs()
800 			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);  in affs_write_end_ofs()
802 		affs_fix_checksum(sb, bh);  in affs_write_end_ofs()
803 		mark_buffer_dirty_inode(bh, inode);  in affs_write_end_ofs()
811 	affs_brelse(bh);  in affs_write_end_ofs()
829 	bh = prev_bh;  in affs_write_end_ofs()
831 		written = PTR_ERR(bh);  in affs_write_end_ofs()
944 			struct buffer_head *bh = affs_bread_ino(inode, last_blk, 0);  in affs_truncate()  local
946 			if (IS_ERR(bh)) {  in affs_truncate()
949 					     ext, PTR_ERR(bh));  in affs_truncate()
952 			tmp = be32_to_cpu(AFFS_DATA_HEAD(bh)->next);  in affs_truncate()
953 			AFFS_DATA_HEAD(bh)->next = 0;  in affs_truncate()
954 			affs_adjust_checksum(bh, -tmp);  in affs_truncate()
955 			affs_brelse(bh);  in affs_truncate()