50 	struct buffer_head *bh;  in get_block_length()  local
52 	bh = sb_bread(sb, *cur_index);  in get_block_length()
53 	if (bh == NULL)  in get_block_length()
57 		*length = (unsigned char) bh->b_data[*offset];  in get_block_length()
58 		put_bh(bh);  in get_block_length()
59 		bh = sb_bread(sb, ++(*cur_index));  in get_block_length()
60 		if (bh == NULL)  in get_block_length()
62 		*length |= (unsigned char) bh->b_data[0] << 8;  in get_block_length()
65 		*length = (unsigned char) bh->b_data[*offset] |  in get_block_length()
66 			(unsigned char) bh->b_data[*offset + 1] << 8;  in get_block_length()
70 	return bh;  in get_block_length()
86 	struct buffer_head **bh;  in squashfs_read_data()  local
92 	bh = kcalloc((msblk->block_size >> msblk->devblksize_log2) + 1,  in squashfs_read_data()
93 				sizeof(*bh), GFP_KERNEL);  in squashfs_read_data()
94 	if (bh == NULL)  in squashfs_read_data()
115 			bh[b] = sb_getblk(sb, cur_index);  in squashfs_read_data()
116 			if (bh[b] == NULL)  in squashfs_read_data()
120 		ll_rw_block(READ, b, bh);  in squashfs_read_data()
128 		bh[0] = get_block_length(sb, &cur_index, &offset, &length);  in squashfs_read_data()
129 		if (bh[0] == NULL)  in squashfs_read_data()
147 			bh[b] = sb_getblk(sb, ++cur_index);  in squashfs_read_data()
148 			if (bh[b] == NULL)  in squashfs_read_data()
152 		ll_rw_block(READ, b - 1, bh + 1);  in squashfs_read_data()
172 				wait_on_buffer(bh[k]);  in squashfs_read_data()
173 				if (!buffer_uptodate(bh[k]))  in squashfs_read_data()
178 					put_bh(bh[k++]);  in squashfs_read_data()
182 				msblk->stream.next_in = bh[k]->b_data + offset;  in squashfs_read_data()
207 				put_bh(bh[k++]);  in squashfs_read_data()
234 			wait_on_buffer(bh[i]);  in squashfs_read_data()
235 			if (!buffer_uptodate(bh[i]))  in squashfs_read_data()
250 						bh[k]->b_data + offset, avail);  in squashfs_read_data()
256 			put_bh(bh[k]);  in squashfs_read_data()
260 	kfree(bh);  in squashfs_read_data()
268 		put_bh(bh[k]);  in squashfs_read_data()
272 	kfree(bh);  in squashfs_read_data()