23 static int befs_find_brun_direct(struct super_block *sb,
27 static int befs_find_brun_indirect(struct super_block *sb,
32 static int befs_find_brun_dblindirect(struct super_block *sb,
48 befs_read_datastream(struct super_block *sb, befs_data_stream * ds,  in befs_read_datastream()  argument
55 	befs_debug(sb, "---> %s %llu", __func__, pos);  in befs_read_datastream()
56 	block = pos >> BEFS_SB(sb)->block_shift;  in befs_read_datastream()
58 		*off = pos - (block << BEFS_SB(sb)->block_shift);  in befs_read_datastream()
60 	if (befs_fblock2brun(sb, ds, block, &run) != BEFS_OK) {  in befs_read_datastream()
61 		befs_error(sb, "BeFS: Error finding disk addr of block %lu",  in befs_read_datastream()
63 		befs_debug(sb, "<--- %s ERROR", __func__);  in befs_read_datastream()
66 	bh = befs_bread_iaddr(sb, run);  in befs_read_datastream()
68 		befs_error(sb, "BeFS: Error reading block %lu from datastream",  in befs_read_datastream()
73 	befs_debug(sb, "<--- %s read data, starting at %llu", __func__, pos);  in befs_read_datastream()
90 befs_fblock2brun(struct super_block *sb, befs_data_stream * data,  in befs_fblock2brun()  argument
94 	befs_off_t pos = fblock << BEFS_SB(sb)->block_shift;  in befs_fblock2brun()
97 		err = befs_find_brun_direct(sb, data, fblock, run);  in befs_fblock2brun()
100 		err = befs_find_brun_indirect(sb, data, fblock, run);  in befs_fblock2brun()
103 		err = befs_find_brun_dblindirect(sb, data, fblock, run);  in befs_fblock2brun()
106 		befs_error(sb,  in befs_fblock2brun()
125 befs_read_lsymlink(struct super_block * sb, befs_data_stream * ds, void *buff,  in befs_read_lsymlink()  argument
131 	befs_debug(sb, "---> %s length: %llu", __func__, len);  in befs_read_lsymlink()
134 		bh = befs_read_datastream(sb, ds, bytes_read, NULL);  in befs_read_lsymlink()
136 			befs_error(sb, "BeFS: Error reading datastream block "  in befs_read_lsymlink()
138 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_read_lsymlink()
142 		plen = ((bytes_read + BEFS_SB(sb)->block_size) < len) ?  in befs_read_lsymlink()
143 		    BEFS_SB(sb)->block_size : len - bytes_read;  in befs_read_lsymlink()
149 	befs_debug(sb, "<--- %s read %u bytes", __func__, (unsigned int)  in befs_read_lsymlink()
166 befs_count_blocks(struct super_block * sb, befs_data_stream * ds)  in befs_count_blocks()  argument
171 	struct befs_sb_info *befs_sb = BEFS_SB(sb);  in befs_count_blocks()
173 	befs_debug(sb, "---> %s", __func__);  in befs_count_blocks()
203 		indirblocks = dbl_bruns / befs_iaddrs_per_block(sb);  in befs_count_blocks()
210 	befs_debug(sb, "<--- %s %u blocks", __func__, (unsigned int)blocks);  in befs_count_blocks()
246 befs_find_brun_direct(struct super_block *sb, befs_data_stream * data,  in befs_find_brun_direct()  argument
253 	    data->max_direct_range >> BEFS_SB(sb)->block_shift;  in befs_find_brun_direct()
255 	befs_debug(sb, "---> %s, find %lu", __func__, (unsigned long)blockno);  in befs_find_brun_direct()
258 		befs_error(sb, "%s passed block outside of direct region",  in befs_find_brun_direct()
271 			befs_debug(sb, "---> %s, "  in befs_find_brun_direct()
278 	befs_debug(sb, "---> %s ERROR", __func__);  in befs_find_brun_direct()
306 befs_find_brun_indirect(struct super_block *sb,  in befs_find_brun_indirect()  argument
318 	befs_blocknr_t indirblockno = iaddr2blockno(sb, &indirect);  in befs_find_brun_indirect()
319 	int arraylen = befs_iaddrs_per_block(sb);  in befs_find_brun_indirect()
321 	befs_debug(sb, "---> %s, find %lu", __func__, (unsigned long)blockno);  in befs_find_brun_indirect()
323 	indir_start_blk = data->max_direct_range >> BEFS_SB(sb)->block_shift;  in befs_find_brun_indirect()
328 		indirblock = befs_bread(sb, indirblockno + i);  in befs_find_brun_indirect()
330 			befs_debug(sb, "---> %s failed to read "  in befs_find_brun_indirect()
339 			int len = fs16_to_cpu(sb, array[j].len);  in befs_find_brun_indirect()
344 				    fs32_to_cpu(sb, array[j].allocation_group);  in befs_find_brun_indirect()
346 				    fs16_to_cpu(sb, array[j].start) + offset;  in befs_find_brun_indirect()
348 				    fs16_to_cpu(sb, array[j].len) - offset;  in befs_find_brun_indirect()
351 				befs_debug(sb,  in befs_find_brun_indirect()
365 	befs_error(sb, "BeFS: %s failed to find "  in befs_find_brun_indirect()
368 	befs_debug(sb, "<--- %s ERROR", __func__);  in befs_find_brun_indirect()
414 befs_find_brun_dblindirect(struct super_block *sb,  in befs_find_brun_dblindirect()  argument
431 	struct befs_sb_info *befs_sb = BEFS_SB(sb);  in befs_find_brun_dblindirect()
446 	size_t diblklen = iblklen * befs_iaddrs_per_block(sb)  in befs_find_brun_dblindirect()
449 	befs_debug(sb, "---> %s find %lu", __func__, (unsigned long)blockno);  in befs_find_brun_dblindirect()
462 	dbl_which_block = dblindir_indx / befs_iaddrs_per_block(sb);  in befs_find_brun_dblindirect()
464 		befs_error(sb, "The double-indirect index calculated by "  in befs_find_brun_dblindirect()
472 	    befs_bread(sb, iaddr2blockno(sb, &data->double_indirect) +  in befs_find_brun_dblindirect()
475 		befs_error(sb, "%s couldn't read the "  in befs_find_brun_dblindirect()
478 			   iaddr2blockno(sb, &data->double_indirect) +  in befs_find_brun_dblindirect()
485 	    dblindir_indx - (dbl_which_block * befs_iaddrs_per_block(sb));  in befs_find_brun_dblindirect()
487 	indir_run = fsrun_to_cpu(sb, iaddr_array[dbl_block_indx]);  in befs_find_brun_dblindirect()
492 	which_block = indir_indx / befs_iaddrs_per_block(sb);  in befs_find_brun_dblindirect()
494 		befs_error(sb, "The indirect index calculated by "  in befs_find_brun_dblindirect()
501 	    befs_bread(sb, iaddr2blockno(sb, &indir_run) + which_block);  in befs_find_brun_dblindirect()
503 		befs_error(sb, "%s couldn't read the indirect block "  in befs_find_brun_dblindirect()
505 			   iaddr2blockno(sb, &indir_run) + which_block);  in befs_find_brun_dblindirect()
510 	block_indx = indir_indx - (which_block * befs_iaddrs_per_block(sb));  in befs_find_brun_dblindirect()
512 	*run = fsrun_to_cpu(sb, iaddr_array[block_indx]);  in befs_find_brun_dblindirect()
524 	befs_debug(sb, "Found file block %lu in double_indirect[%d][%d],"  in befs_find_brun_dblindirect()