EXFAT_RESERVED_CLUSTERS
#define CLUSTER_TO_BITMAP_ENT(clu) ((clu) - EXFAT_RESERVED_CLUSTERS)
#define BITMAP_ENT_TO_CLUSTER(ent) ((ent) + EXFAT_RESERVED_CLUSTERS)
return ((sector_t)(clus - EXFAT_RESERVED_CLUSTERS) << sbi->sect_per_clus_bits) +
EXFAT_RESERVED_CLUSTERS;
return ((loff_t)(clus - EXFAT_RESERVED_CLUSTERS) << sbi->cluster_size_bits) +
((sbi)->num_clusters - EXFAT_RESERVED_CLUSTERS)
EXFAT_RESERVED_CLUSTERS;