jfs_superblock
struct jfs_superblock *j_sb;
j_sb = (struct jfs_superblock *)bh->b_data;
struct jfs_superblock *j_sb;
j_sb = (struct jfs_superblock *)bh->b_data;
struct jfs_superblock *j_sb;
j_sb = (struct jfs_superblock *)bh->b_data;
j_sb = (struct jfs_superblock *)bh->b_data;
j_sb = (struct jfs_superblock *)bh->b_data;
j_sb2 = (struct jfs_superblock *)bh2->b_data;
memcpy(j_sb2, j_sb, sizeof (struct jfs_superblock));
struct jfs_superblock *j_sb, *j_sb2;