#include <dirent.h>
#define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024)
+#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024)
#define BTRFS_SCAN_PROC (1ULL << 0)
-#define BTRFS_SCAN_DEV (1ULL << 1)
-#define BTRFS_SCAN_MOUNTED (1ULL << 2)
-#define BTRFS_SCAN_LBLKID (1ULL << 3)
+#define BTRFS_SCAN_MOUNTED (1ULL << 1)
+#define BTRFS_SCAN_LBLKID (1ULL << 2)
#define BTRFS_UPDATE_KERNEL 1
#define BTRFS_UUID_UNPARSED_SIZE 37
+#define ARGV0_BUF_SIZE 64
+
+int check_argc_exact(int nargs, int expected);
+int check_argc_min(int nargs, int expected);
+int check_argc_max(int nargs, int expected);
+
+void fixup_argv0(char **argv, const char *token);
+void set_argv0(char **argv);
+
int make_btrfs(int fd, const char *device, const char *label,
char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize,
u32 leafsize, u32 sectorsize, u32 stripesize, u64 features);
u32 sectorsize);
int btrfs_scan_for_fsid(int run_ioctls);
void btrfs_register_one_device(char *fname);
-int btrfs_scan_one_dir(char *dirname, int run_ioctl);
char *canonicalize_dm_name(const char *ptname);
char *canonicalize_path(const char *path);
int check_mounted(const char *devicename);
struct btrfs_ioctl_dev_info_args *di_args);
int test_uuid_unique(char *fs_uuid);
+int test_minimum_size(const char *file, u32 leafsize);
+int test_issubvolname(const char *name);
+int test_isdir(const char *path);
+
+/*
+ * Btrfs minimum size calculation is complicated, it should include at least:
+ * 1. system group size
+ * 2. minimum global block reserve
+ * 3. metadata used at mkfs
+ * 4. space reservation to create uuid for first mount.
+ * Also, raid factor should also be taken into consideration.
+ * To avoid the overkill calculation, (system group + global block rsv) * 2
+ * for *EACH* device should be good enough.
+ */
+static inline u64 btrfs_min_global_blk_rsv_size(u32 leafsize)
+{
+ return leafsize << 10;
+}
+static inline u64 btrfs_min_dev_size(u32 leafsize)
+{
+ return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE +
+ btrfs_min_global_blk_rsv_size(leafsize));
+}
+
#endif