hfs_sb_info
#define HFS_SB(sb) ((struct hfs_sb_info *)(sb)->s_fs_info)
struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
struct hfs_sb_info *sbi = HFS_SB(sb);
struct hfs_sb_info *sbi = HFS_SB(root->d_sb);
struct hfs_sb_info *hsb = fc->s_fs_info;
struct hfs_sb_info *sbi = HFS_SB(sb);
struct hfs_sb_info *hsb;
hsb = kzalloc_obj(struct hfs_sb_info);
struct hfs_sb_info *hsb = HFS_SB(sb);
struct hfs_sb_info *sbi;
sbi = container_of(work, struct hfs_sb_info, mdb_work.work);
struct hfs_sb_info *sbi = HFS_SB(sb);