fs/jfs/jfs_mount.c

291 	struct jfs_superblock *j_sb;
301 	j_sb = (struct jfs_superblock *)bh->b_data;
307 	if (strncmp(j_sb->s_magic, JFS_MAGIC, 4) ||
308 	    le32_to_cpu(j_sb->s_version) > JFS_VERSION) {
313 	bsize = le32_to_cpu(j_sb->s_bsize);
321 		 le32_to_cpu(j_sb->s_flag), le32_to_cpu(j_sb->s_state),
322 		 (unsigned long long) le64_to_cpu(j_sb->s_size));
325 	if ((j_sb->s_flag & cpu_to_le32(JFS_BAD_SAIT)) !=
328 		AIM_bytesize = lengthPXD(&(j_sb->s_aim2)) * bsize;
330 		AIT_bytesize = lengthPXD(&(j_sb->s_ait2)) * bsize;
331 		AIM_byte_addr = addressPXD(&(j_sb->s_aim2)) * bsize;
332 		AIT_byte_addr = addressPXD(&(j_sb->s_ait2)) * bsize;
334 		fsckwsp_addr = addressPXD(&(j_sb->s_fsckpxd)) * bsize;
340 			j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT);
343 	if ((j_sb->s_flag & cpu_to_le32(JFS_GROUPCOMMIT)) !=
345 		j_sb->s_flag |= cpu_to_le32(JFS_GROUPCOMMIT);
348 	if (j_sb->s_state != cpu_to_le32(FM_CLEAN) &&
355 	sbi->state = le32_to_cpu(j_sb->s_state);
356 	sbi->mntflag = le32_to_cpu(j_sb->s_flag);
363 	sbi->l2bsize = le16_to_cpu(j_sb->s_l2bsize);
367 	    j_sb->pad != 0 ||
368 	    le32_to_cpu(j_sb->s_state) > FM_STATE_MAX) {
382 		sbi->logpxd = j_sb->s_logpxd;
384 		sbi->logdev = new_decode_dev(le32_to_cpu(j_sb->s_logdev));
385 		uuid_copy(&sbi->uuid, &j_sb->s_uuid);
386 		uuid_copy(&sbi->loguuid, &j_sb->s_loguuid);
388 	sbi->fsckpxd = j_sb->s_fsckpxd;
389 	sbi->ait2 = j_sb->s_ait2;
404 	struct jfs_superblock *j_sb;
426 	j_sb = (struct jfs_superblock *)bh->b_data;
428 	j_sb->s_state = cpu_to_le32(state);
433 		j_sb->s_logdev = cpu_to_le32(
435 		j_sb->s_logserial = cpu_to_le32(sbi->log->serial);
441 		if (j_sb->s_flag & cpu_to_le32(JFS_DASD_ENABLED))
442 			j_sb->s_flag |= cpu_to_le32(JFS_DASD_PRIME);