80 	down(&(MSDOS_SB(sb)->fat_lock));  in lock_fat()
85 	up(&(MSDOS_SB(sb)->fat_lock));  in unlock_fat()
95 	bh = fat_bread(sb, MSDOS_SB(sb)->fsinfo_sector);  in fat_clusters_flush()
107 		       MSDOS_SB(sb)->fsinfo_sector);  in fat_clusters_flush()
110 	fsinfo->free_clusters = CF_LE_L(MSDOS_SB(sb)->free_clusters);  in fat_clusters_flush()
111 	fsinfo->next_cluster = CF_LE_L(MSDOS_SB(sb)->prev_free);  in fat_clusters_flush()
124 	int cluster_size = MSDOS_SB(sb)->cluster_size;  in fat_add_cluster()
129 	if (MSDOS_SB(sb)->free_clusters == 0) {  in fat_add_cluster()
133 	limit = MSDOS_SB(sb)->clusters;  in fat_add_cluster()
136 		nr = ((count + MSDOS_SB(sb)->prev_free) % limit) + 2;  in fat_add_cluster()
141 		MSDOS_SB(sb)->free_clusters = 0;  in fat_add_cluster()
146 	MSDOS_SB(sb)->prev_free = (count + MSDOS_SB(sb)->prev_free + 1) % limit;  in fat_add_cluster()
148 	if (MSDOS_SB(sb)->free_clusters != -1)  in fat_add_cluster()
149 		MSDOS_SB(sb)->free_clusters--;  in fat_add_cluster()
150 	if (MSDOS_SB(sb)->fat_bits == 32)  in fat_add_cluster()
192 	inode->i_blocks += (1 << MSDOS_SB(sb)->cluster_bits) / 512;  in fat_add_cluster()
202 	int cluster_size = MSDOS_SB(sb)->cluster_size;  in fat_extend_dir()
204 	if (MSDOS_SB(sb)->fat_bits != 32) {  in fat_extend_dir()
213 	sector = MSDOS_SB(sb)->data_start + (nr - 2) * cluster_size;  in fat_extend_dir()
215 	if (MSDOS_SB(sb)->cvf_format && MSDOS_SB(sb)->cvf_format->zero_out_cluster)  in fat_extend_dir()
216 		MSDOS_SB(sb)->cvf_format->zero_out_cluster(inode, nr);  in fat_extend_dir()
240 	inode->i_size += 1 << MSDOS_SB(sb)->cluster_bits;  in fat_extend_dir()
241 	MSDOS_I(inode)->mmu_private += 1 << MSDOS_SB(sb)->cluster_bits;  in fat_extend_dir()
322 	struct msdos_sb_info *sbi = MSDOS_SB(sb);  in fat__get_entry()
409 	struct msdos_sb_info *sbi = MSDOS_SB(sb);  in raw_scan_sector()
463 	     count < MSDOS_SB(sb)->dir_entries / MSDOS_SB(sb)->dir_per_block;  in raw_scan_root()
465 		cluster = raw_scan_sector(sb, MSDOS_SB(sb)->dir_start + count,  in raw_scan_root()
484 	struct msdos_sb_info *sbi = MSDOS_SB(sb);  in raw_scan_nonroot()
535 	struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);  in fat_subdirs()