270   struct reiserfs_super_block super;  in reiserfs_mount()  local
274   if (part_length < superblock + (sizeof (super) >> SECTOR_BITS)  in reiserfs_mount()
276 			     (char *) &super)  in reiserfs_mount()
277       || (substring (REISER3FS_SUPER_MAGIC_STRING, super.s_magic) > 0  in reiserfs_mount()
278 	  && substring (REISER2FS_SUPER_MAGIC_STRING, super.s_magic) > 0  in reiserfs_mount()
279 	  && substring (REISERFS_SUPER_MAGIC_STRING, super.s_magic) > 0)  in reiserfs_mount()
281 	  sb_journal_block(&super) * sb_blocksize(&super)  in reiserfs_mount()
284       /* Try old super block position */  in reiserfs_mount()
286       if (part_length < superblock + (sizeof (super) >> SECTOR_BITS)  in reiserfs_mount()
288 				 (char *) &super))  in reiserfs_mount()
291       if (substring (REISER2FS_SUPER_MAGIC_STRING, super.s_magic) > 0  in reiserfs_mount()
292 	  && substring (REISERFS_SUPER_MAGIC_STRING, super.s_magic) > 0)  in reiserfs_mount()
294 	  /* pre journaling super block ? */  in reiserfs_mount()
296 			 (char*) ((int) &super + 20)) > 0)  in reiserfs_mount()
299 	  set_sb_blocksize(&super, REISERFS_OLD_BLOCKSIZE);  in reiserfs_mount()
300 	  set_sb_journal_block(&super, 0);  in reiserfs_mount()
301 	  set_sb_version(&super, 0);  in reiserfs_mount()
306   if (sb_version(&super) > REISERFS_MAX_SUPPORTED_VERSION)  in reiserfs_mount()
309   INFO->version = sb_version(&super);  in reiserfs_mount()
310   INFO->blocksize = sb_blocksize(&super);  in reiserfs_mount()
311   INFO->fullblocksize_shift = log2 (sb_blocksize(&super));  in reiserfs_mount()
324   if (sb_blocksize(&super) < FSYSREISER_MIN_BLOCKSIZE  in reiserfs_mount()
325       || sb_blocksize(&super) > FSYSREISER_MAX_BLOCKSIZE  in reiserfs_mount()
326       || (SECTOR_SIZE << INFO->blocksize_shift) != sb_blocksize(&super))  in reiserfs_mount()
333   if (sb_journal_block(&super) != 0 && super.s_journal_dev == 0)  in reiserfs_mount()
335       INFO->journal_block = sb_journal_block(&super);  in reiserfs_mount()
336       INFO->journal_block_count = sb_journal_size(&super);  in reiserfs_mount()
340       /* Read in super block again, maybe it is in the journal */  in reiserfs_mount()
342 		  0, sizeof (struct reiserfs_super_block), (char *) &super);  in reiserfs_mount()
345   if (! block_read (sb_root_block(&super), 0, INFO->blocksize, (char*) ROOT))  in reiserfs_mount()
353 	  sb_root_block(&super), INFO->tree_depth);  in reiserfs_mount()