50 static void zonefs_account_active(struct super_block *sb,  in zonefs_account_active()  argument
53 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_account_active()
99 static int zonefs_zone_mgmt(struct super_block *sb,  in zonefs_zone_mgmt()  argument
115 	trace_zonefs_zone_mgmt(sb, z, op);  in zonefs_zone_mgmt()
116 	ret = blkdev_zone_mgmt(sb->s_bdev, op, z->z_sector,  in zonefs_zone_mgmt()
119 		zonefs_err(sb,  in zonefs_zone_mgmt()
156 	struct super_block *sb = inode->i_sb;  in zonefs_update_stats()  local
157 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_update_stats()
171 		nr_blocks = (old_isize - new_isize) >> sb->s_blocksize_bits;  in zonefs_update_stats()
178 			(new_isize - old_isize) >> sb->s_blocksize_bits;  in zonefs_update_stats()
190 static loff_t zonefs_check_zone_condition(struct super_block *sb,  in zonefs_check_zone_condition()  argument
196 		zonefs_warn(sb, "Zone %llu: offline zone\n",  in zonefs_check_zone_condition()
209 		zonefs_warn(sb, "Zone %llu: read-only zone\n",  in zonefs_check_zone_condition()
263 	struct super_block *sb = inode->i_sb;  in zonefs_handle_io_error()  local
264 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_handle_io_error()
273 	data_size = zonefs_check_zone_condition(sb, z, zone);  in zonefs_handle_io_error()
299 		zonefs_warn(sb,  in zonefs_handle_io_error()
311 		zonefs_warn(sb, "inode %llu: read/write access disabled\n",  in zonefs_handle_io_error()
319 		zonefs_warn(sb, "inode %llu: write access disabled\n",  in zonefs_handle_io_error()
345 	if ((sbi->s_mount_opts & ZONEFS_MNTOPT_ERRORS_RO) && !sb_rdonly(sb)) {  in zonefs_handle_io_error()
346 		zonefs_warn(sb, "remounting filesystem read-only\n");  in zonefs_handle_io_error()
347 		sb->s_flags |= SB_RDONLY;  in zonefs_handle_io_error()
370 	struct super_block *sb = inode->i_sb;  in __zonefs_io_error()  local
400 	ret = blkdev_report_zones(sb->s_bdev, z->z_sector, 1,  in __zonefs_io_error()
405 		zonefs_err(sb, "Get inode %llu zone information failed %d\n",  in __zonefs_io_error()
407 		zonefs_warn(sb, "remounting filesystem read-only\n");  in __zonefs_io_error()
408 		sb->s_flags |= SB_RDONLY;  in __zonefs_io_error()
418 static struct inode *zonefs_alloc_inode(struct super_block *sb)  in zonefs_alloc_inode()  argument
422 	zi = alloc_inode_sb(sb, zonefs_inode_cachep, GFP_KERNEL);  in zonefs_alloc_inode()
443 	struct super_block *sb = dentry->d_sb;  in zonefs_statfs()  local
444 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_statfs()
448 	buf->f_bsize = sb->s_blocksize;  in zonefs_statfs()
631 	struct super_block *sb = dir->i_sb;  in zonefs_get_file_inode()  local
632 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_get_file_inode()
648 	inode = iget_locked(sb, ino);  in zonefs_get_file_inode()
679 static struct inode *zonefs_get_zgroup_inode(struct super_block *sb,  in zonefs_get_zgroup_inode()  argument
682 	struct inode *root = d_inode(sb->s_root);  in zonefs_get_zgroup_inode()
683 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_get_zgroup_inode()
685 	ino_t ino = bdev_nr_zones(sb->s_bdev) + ztype + 1;  in zonefs_get_zgroup_inode()
687 	inode = iget_locked(sb, ino);  in zonefs_get_zgroup_inode()
713 	struct super_block *sb = dir->i_sb;  in zonefs_get_dir_inode()  local
714 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_get_dir_inode()
733 	return zonefs_get_zgroup_inode(sb, ztype);  in zonefs_get_dir_inode()
755 	struct super_block *sb = inode->i_sb;  in zonefs_readdir_root()  local
756 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_readdir_root()
758 	ino_t base_ino = bdev_nr_zones(sb->s_bdev) + 1;  in zonefs_readdir_root()
792 	struct super_block *sb = inode->i_sb;  in zonefs_readdir_zgroup()  local
793 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_readdir_zgroup()
851 	struct super_block	*sb;  member
861 	struct super_block *sb = zd->sb;  in zonefs_get_zone_info_cb()  local
862 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_get_zone_info_cb()
895 		zonefs_err(zd->sb, "Unsupported zone type 0x%x\n",  in zonefs_get_zone_info_cb()
907 	struct block_device *bdev = zd->sb->s_bdev;  in zonefs_get_zone_info()
918 		zonefs_err(zd->sb, "Zone report failed %d\n", ret);  in zonefs_get_zone_info()
923 		zonefs_err(zd->sb, "Invalid zone report (%d/%u zones)\n",  in zonefs_get_zone_info()
939 static int zonefs_init_zgroup(struct super_block *sb,  in zonefs_init_zgroup()  argument
943 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_init_zgroup()
963 	end = zd->zones + bdev_nr_zones(sb->s_bdev);  in zonefs_init_zgroup()
1001 		if (z->z_size > bdev_zone_sectors(sb->s_bdev) << SECTOR_SHIFT &&  in zonefs_init_zgroup()
1003 			zonefs_err(sb,  in zonefs_init_zgroup()
1006 				bdev_zone_sectors(sb->s_bdev) << SECTOR_SHIFT);  in zonefs_init_zgroup()
1012 		z->z_wpoffset = zonefs_check_zone_condition(sb, z, zone);  in zonefs_init_zgroup()
1025 		sb->s_maxbytes = max(z->z_capacity, sb->s_maxbytes);  in zonefs_init_zgroup()
1026 		sbi->s_blocks += z->z_capacity >> sb->s_blocksize_bits;  in zonefs_init_zgroup()
1027 		sbi->s_used_blocks += z->z_wpoffset >> sb->s_blocksize_bits;  in zonefs_init_zgroup()
1038 			ret = zonefs_zone_mgmt(sb, z, REQ_OP_ZONE_CLOSE);  in zonefs_init_zgroup()
1043 		zonefs_account_active(sb, z);  in zonefs_init_zgroup()
1051 	zonefs_info(sb, "Zone group \"%s\" has %u file%s\n",  in zonefs_init_zgroup()
1059 static void zonefs_free_zgroups(struct super_block *sb)  in zonefs_free_zgroups()  argument
1061 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_free_zgroups()
1076 static int zonefs_init_zgroups(struct super_block *sb)  in zonefs_init_zgroups()  argument
1084 	zd.sb = sb;  in zonefs_init_zgroups()
1091 		ret = zonefs_init_zgroup(sb, &zd, ztype);  in zonefs_init_zgroups()
1093 			zonefs_info(sb,  in zonefs_init_zgroups()
1103 		zonefs_free_zgroups(sb);  in zonefs_init_zgroups()
1111 static int zonefs_read_super(struct super_block *sb)  in zonefs_read_super()  argument
1113 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_read_super()
1122 	ret = bdev_rw_virt(sb->s_bdev, 0, super, ZONEFS_SUPER_SIZE,  in zonefs_read_super()
1135 		zonefs_err(sb, "Invalid checksum (Expected 0x%08x, got 0x%08x)",  in zonefs_read_super()
1142 		zonefs_err(sb, "Unknown features set 0x%llx\n",  in zonefs_read_super()
1151 			zonefs_err(sb, "Invalid UID feature\n");  in zonefs_read_super()
1160 			zonefs_err(sb, "Invalid GID feature\n");  in zonefs_read_super()
1169 		zonefs_err(sb, "Reserved area is being used\n");  in zonefs_read_super()
1188 static int zonefs_get_zgroup_inodes(struct super_block *sb)  in zonefs_get_zgroup_inodes()  argument
1190 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_get_zgroup_inodes()
1198 		dir_inode = zonefs_get_zgroup_inode(sb, ztype);  in zonefs_get_zgroup_inodes()
1208 static void zonefs_release_zgroup_inodes(struct super_block *sb)  in zonefs_release_zgroup_inodes()  argument
1210 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_release_zgroup_inodes()
1229 static int zonefs_fill_super(struct super_block *sb, struct fs_context *fc)  in zonefs_fill_super()  argument
1237 	if (!bdev_is_zoned(sb->s_bdev)) {  in zonefs_fill_super()
1238 		zonefs_err(sb, "Not a zoned block device\n");  in zonefs_fill_super()
1253 	sb->s_fs_info = sbi;  in zonefs_fill_super()
1254 	sb->s_magic = ZONEFS_MAGIC;  in zonefs_fill_super()
1255 	sb->s_maxbytes = 0;  in zonefs_fill_super()
1256 	sb->s_op = &zonefs_sops;  in zonefs_fill_super()
1257 	sb->s_time_gran	= 1;  in zonefs_fill_super()
1264 	sb_set_blocksize(sb, bdev_zone_write_granularity(sb->s_bdev));  in zonefs_fill_super()
1265 	sbi->s_zone_sectors_shift = ilog2(bdev_zone_sectors(sb->s_bdev));  in zonefs_fill_super()
1272 	sbi->s_max_wro_seq_files = bdev_max_open_zones(sb->s_bdev);  in zonefs_fill_super()
1274 	sbi->s_max_active_seq_files = bdev_max_active_zones(sb->s_bdev);  in zonefs_fill_super()
1276 	ret = zonefs_read_super(sb);  in zonefs_fill_super()
1280 	zonefs_info(sb, "Mounting %u zones", bdev_nr_zones(sb->s_bdev));  in zonefs_fill_super()
1285 		zonefs_info(sb,  in zonefs_fill_super()
1291 	ret = zonefs_init_zgroups(sb);  in zonefs_fill_super()
1297 	inode = new_inode(sb);  in zonefs_fill_super()
1301 	inode->i_ino = bdev_nr_zones(sb->s_bdev);  in zonefs_fill_super()
1315 	sb->s_root = d_make_root(inode);  in zonefs_fill_super()
1316 	if (!sb->s_root)  in zonefs_fill_super()
1323 	ret = zonefs_get_zgroup_inodes(sb);  in zonefs_fill_super()
1327 	ret = zonefs_sysfs_register(sb);  in zonefs_fill_super()
1334 	zonefs_release_zgroup_inodes(sb);  in zonefs_fill_super()
1335 	zonefs_free_zgroups(sb);  in zonefs_fill_super()
1340 static void zonefs_kill_super(struct super_block *sb)  in zonefs_kill_super()  argument
1342 	struct zonefs_sb_info *sbi = ZONEFS_SB(sb);  in zonefs_kill_super()
1345 	zonefs_release_zgroup_inodes(sb);  in zonefs_kill_super()
1347 	kill_block_super(sb);  in zonefs_kill_super()
1349 	zonefs_sysfs_unregister(sb);  in zonefs_kill_super()
1350 	zonefs_free_zgroups(sb);  in zonefs_kill_super()
1369 	struct super_block *sb = fc->root->d_sb;  in zonefs_reconfigure()  local
1370 	struct zonefs_sb_info *sbi = sb->s_fs_info;  in zonefs_reconfigure()