37 	struct buffer_head *bh;  in get_block_length()  local
39 	bh = sb_bread(sb, *cur_index);  in get_block_length()
40 	if (bh == NULL)  in get_block_length()
44 		*length = (unsigned char) bh->b_data[*offset];  in get_block_length()
45 		put_bh(bh);  in get_block_length()
46 		bh = sb_bread(sb, ++(*cur_index));  in get_block_length()
47 		if (bh == NULL)  in get_block_length()
49 		*length |= (unsigned char) bh->b_data[0] << 8;  in get_block_length()
52 		*length = (unsigned char) bh->b_data[*offset] |  in get_block_length()
53 			(unsigned char) bh->b_data[*offset + 1] << 8;  in get_block_length()
57 			put_bh(bh);  in get_block_length()
58 			bh = sb_bread(sb, ++(*cur_index));  in get_block_length()
59 			if (bh == NULL)  in get_block_length()
65 	return bh;  in get_block_length()
82 	struct buffer_head **bh;  in squashfs_read_data()  local
87 	bh = kcalloc(((output->length + msblk->devblksize - 1)  in squashfs_read_data()
88 		>> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);  in squashfs_read_data()
89 	if (bh == NULL)  in squashfs_read_data()
110 			bh[b] = sb_getblk(sb, cur_index);  in squashfs_read_data()
111 			if (bh[b] == NULL)  in squashfs_read_data()
115 		ll_rw_block(REQ_OP_READ, 0, b, bh);  in squashfs_read_data()
123 		bh[0] = get_block_length(sb, &cur_index, &offset, &length);  in squashfs_read_data()
124 		if (bh[0] == NULL)  in squashfs_read_data()
142 			bh[b] = sb_getblk(sb, ++cur_index);  in squashfs_read_data()
143 			if (bh[b] == NULL)  in squashfs_read_data()
147 		ll_rw_block(REQ_OP_READ, 0, b - 1, bh + 1);  in squashfs_read_data()
151 		wait_on_buffer(bh[i]);  in squashfs_read_data()
152 		if (!buffer_uptodate(bh[i]))  in squashfs_read_data()
159 		length = squashfs_decompress(msblk, bh, b, offset, length,  in squashfs_read_data()
180 				memcpy(data + pg_offset, bh[k]->b_data + offset,  in squashfs_read_data()
187 			put_bh(bh[k]);  in squashfs_read_data()
192 	kfree(bh);  in squashfs_read_data()
197 		put_bh(bh[k]);  in squashfs_read_data()
202 	kfree(bh);  in squashfs_read_data()