X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=utils.h;h=7accbd20382cdf2c2f52339faf7c16133dbf695c;hb=555b7feaebc109bbc184f333779bd664adc34125;hp=60a0fea95bbd3f2296bdd1e454bf816cfa1b6f0e;hpb=d065d63057c249e109159d0620ce461954b1bc73;p=platform%2Fupstream%2Fbtrfs-progs.git diff --git a/utils.h b/utils.h index 60a0fea..7accbd2 100644 --- a/utils.h +++ b/utils.h @@ -19,44 +19,145 @@ #ifndef __UTILS__ #define __UTILS__ +#include #include "ctree.h" +#include #define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024) +#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024) + +#define BTRFS_SCAN_MOUNTED (1ULL << 0) +#define BTRFS_SCAN_LBLKID (1ULL << 1) + +#define BTRFS_UPDATE_KERNEL 1 + +#define BTRFS_ARG_UNKNOWN 0 +#define BTRFS_ARG_MNTPOINT 1 +#define BTRFS_ARG_UUID 2 +#define BTRFS_ARG_BLKDEV 3 + +#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); + +/* + * Output modes of size + */ +#define UNITS_RESERVED (0) +#define UNITS_BYTES (1) +#define UNITS_KBYTES (2) +#define UNITS_MBYTES (3) +#define UNITS_GBYTES (4) +#define UNITS_TBYTES (5) +#define UNITS_RAW (1U << UNITS_MODE_SHIFT) +#define UNITS_BINARY (2U << UNITS_MODE_SHIFT) +#define UNITS_DECIMAL (3U << UNITS_MODE_SHIFT) +#define UNITS_MODE_MASK ((1U << UNITS_MODE_SHIFT) - 1) +#define UNITS_MODE_SHIFT (8) +#define UNITS_HUMAN_BINARY (UNITS_BINARY) +#define UNITS_HUMAN_DECIMAL (UNITS_DECIMAL) +#define UNITS_HUMAN (UNITS_HUMAN_BINARY) +#define UNITS_DEFAULT (UNITS_HUMAN) + +void units_set_mode(unsigned *units, unsigned mode); +void units_set_base(unsigned *units, unsigned base); int make_btrfs(int fd, const char *device, const char *label, - u64 blocks[6], u64 num_bytes, u32 nodesize, - u32 leafsize, u32 sectorsize, u32 stripesize); + char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize, + u32 leafsize, u32 sectorsize, u32 stripesize, u64 features); int btrfs_make_root_dir(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid); int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret, - u64 max_block_count, int *mixed, int nodiscard); + u64 max_block_count, int *mixed, int discard); int btrfs_add_to_fsid(struct btrfs_trans_handle *trans, struct btrfs_root *root, int fd, char *path, u64 block_count, u32 io_width, u32 io_align, u32 sectorsize); -int btrfs_scan_for_fsid(struct btrfs_fs_devices *fs_devices, u64 total_devs, - int run_ioctls); +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); int check_mounted_where(int fd, const char *file, char *where, int size, struct btrfs_fs_devices **fs_devices_mnt); int btrfs_device_already_in_root(struct btrfs_root *root, int fd, int super_offset); -char *pretty_sizes(u64 size); -int check_label(char *input); + +int pretty_size_snprintf(u64 size, char *str, size_t str_bytes, unsigned unit_mode); +#define pretty_size(size) pretty_size_mode(size, UNITS_DEFAULT) +#define pretty_size_mode(size, mode) \ + ({ \ + static __thread char _str[32]; \ + (void)pretty_size_snprintf((size), _str, sizeof(_str), (mode)); \ + _str; \ + }) + int get_mountpt(char *dev, char *mntpt, size_t size); int btrfs_scan_block_devices(int run_ioctl); u64 parse_size(char *s); -int open_file_or_dir(const char *fname); -int get_device_info(int fd, u64 devid, - struct btrfs_ioctl_dev_info_args *di_args); -int get_fs_info(int fd, char *path, struct btrfs_ioctl_fs_info_args *fi_args, +u64 arg_strtou64(const char *str); +int open_file_or_dir(const char *fname, DIR **dirstream); +int open_file_or_dir3(const char *fname, DIR **dirstream, int open_flags); +void close_file_or_dir(int fd, DIR *dirstream); +int get_fs_info(char *path, struct btrfs_ioctl_fs_info_args *fi_args, struct btrfs_ioctl_dev_info_args **di_ret); +int get_label(const char *btrfs_dev, char *label); +int set_label(const char *btrfs_dev, const char *label); char *__strncpy__null(char *dest, const char *src, size_t n); -int is_swap_device(const char *file); +int is_block_device(const char *file); +int is_mount_point(const char *file); +int open_path_or_dev_mnt(const char *path, DIR **dirstream); +u64 btrfs_device_size(int fd, struct stat *st); /* Helper to always get proper size of the destination string */ #define strncpy_null(dest, src) __strncpy__null(dest, src, sizeof(dest)) +int test_dev_for_mkfs(char *file, int force_overwrite, char *estr); +int get_label_mounted(const char *mount_path, char *labelp); +int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile, + u64 dev_cnt, int mixed, char *estr); +int is_vol_small(char *file); +int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, + int verify); +int ask_user(char *question); +int lookup_ino_rootid(int fd, u64 *rootid); +int btrfs_scan_lblkid(int update_kernel); +int get_btrfs_mount(const char *dev, char *mp, size_t mp_size); +int find_mount_root(const char *path, char **mount_root); +int get_device_info(int fd, u64 devid, + 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)); +} + +int find_next_key(struct btrfs_path *path, struct btrfs_key *key); #endif