32 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_allocate_bitmap()  local
37 	sbi->map_clu = le32_to_cpu(ep->dentry.bitmap.start_clu);  in exfat_allocate_bitmap()
39 	need_map_size = ((EXFAT_DATA_CLUSTER_COUNT(sbi) - 1) / BITS_PER_BYTE)  in exfat_allocate_bitmap()
51 	sbi->map_sectors = ((need_map_size - 1) >>  in exfat_allocate_bitmap()
53 	sbi->vol_amap = kvmalloc_array(sbi->map_sectors,  in exfat_allocate_bitmap()
55 	if (!sbi->vol_amap)  in exfat_allocate_bitmap()
58 	sector = exfat_cluster_to_sector(sbi, sbi->map_clu);  in exfat_allocate_bitmap()
59 	for (i = 0; i < sbi->map_sectors; i++) {  in exfat_allocate_bitmap()
60 		sbi->vol_amap[i] = sb_bread(sb, sector + i);  in exfat_allocate_bitmap()
61 		if (!sbi->vol_amap[i]) {  in exfat_allocate_bitmap()
66 				brelse(sbi->vol_amap[j++]);  in exfat_allocate_bitmap()
68 			kvfree(sbi->vol_amap);  in exfat_allocate_bitmap()
69 			sbi->vol_amap = NULL;  in exfat_allocate_bitmap()
81 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_load_bitmap()  local
83 	exfat_chain_set(&clu, sbi->root_dir, 0, ALLOC_FAT_CHAIN);  in exfat_load_bitmap()
85 		for (i = 0; i < sbi->dentries_per_clu; i++) {  in exfat_load_bitmap()
115 void exfat_free_bitmap(struct exfat_sb_info *sbi)  in exfat_free_bitmap()  argument
119 	for (i = 0; i < sbi->map_sectors; i++)  in exfat_free_bitmap()
120 		__brelse(sbi->vol_amap[i]);  in exfat_free_bitmap()
122 	kvfree(sbi->vol_amap);  in exfat_free_bitmap()
130 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_set_bitmap()  local
132 	if (!is_valid_cluster(sbi, clu))  in exfat_set_bitmap()
139 	set_bit_le(b, sbi->vol_amap[i]->b_data);  in exfat_set_bitmap()
140 	exfat_update_bh(sbi->vol_amap[i], sync);  in exfat_set_bitmap()
149 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_clear_bitmap()  local
150 	struct exfat_mount_options *opts = &sbi->options;  in exfat_clear_bitmap()
152 	if (!is_valid_cluster(sbi, clu))  in exfat_clear_bitmap()
159 	clear_bit_le(b, sbi->vol_amap[i]->b_data);  in exfat_clear_bitmap()
160 	exfat_update_bh(sbi->vol_amap[i], sync);  in exfat_clear_bitmap()
166 			exfat_cluster_to_sector(sbi, clu),  in exfat_clear_bitmap()
167 			(1 << sbi->sect_per_clus_bits), GFP_NOFS, 0);  in exfat_clear_bitmap()
185 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_find_free_bitmap()  local
196 	for (i = EXFAT_FIRST_CLUSTER; i < sbi->num_clusters;  in exfat_find_free_bitmap()
198 		bitval = *(__le_long *)(sbi->vol_amap[map_i]->b_data + map_b);  in exfat_find_free_bitmap()
206 			if (clu_free < sbi->num_clusters)  in exfat_find_free_bitmap()
213 		    clu_base >= sbi->num_clusters) {  in exfat_find_free_bitmap()
214 			if (++map_i >= sbi->map_sectors) {  in exfat_find_free_bitmap()
227 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_count_used_clusters()  local
230 	unsigned int total_clus = EXFAT_DATA_CLUSTER_COUNT(sbi);  in exfat_count_used_clusters()
236 		bitmap = (void *)(sbi->vol_amap[map_i]->b_data + map_b);  in exfat_count_used_clusters()
246 		bitmap = (void *)(sbi->vol_amap[map_i]->b_data + map_b);  in exfat_count_used_clusters()
260 	struct exfat_sb_info *sbi = EXFAT_SB(sb);  in exfat_trim_fs()  local
263 	clu_start = max_t(u64, range->start >> sbi->cluster_size_bits,  in exfat_trim_fs()
265 	clu_end = clu_start + (range->len >> sbi->cluster_size_bits) - 1;  in exfat_trim_fs()
266 	trim_minlen = range->minlen >> sbi->cluster_size_bits;  in exfat_trim_fs()
268 	if (clu_start >= sbi->num_clusters || range->len < sbi->cluster_size)  in exfat_trim_fs()
271 	if (clu_end >= sbi->num_clusters)  in exfat_trim_fs()
272 		clu_end = sbi->num_clusters - 1;  in exfat_trim_fs()
274 	mutex_lock(&sbi->bitmap_lock);  in exfat_trim_fs()
293 					exfat_cluster_to_sector(sbi, trim_begin),  in exfat_trim_fs()
294 					count * sbi->sect_per_clus, GFP_NOFS, 0);  in exfat_trim_fs()
320 		err = sb_issue_discard(sb, exfat_cluster_to_sector(sbi, trim_begin),  in exfat_trim_fs()
321 			count * sbi->sect_per_clus, GFP_NOFS, 0);  in exfat_trim_fs()
329 	mutex_unlock(&sbi->bitmap_lock);  in exfat_trim_fs()
330 	range->len = trimmed_total << sbi->cluster_size_bits;  in exfat_trim_fs()