diff options
Diffstat (limited to 'utils.h')
| -rw-r--r-- | utils.h | 338 |
1 files changed, 24 insertions, 314 deletions
@@ -23,32 +23,11 @@ #include "ctree.h" #include <dirent.h> #include <stdarg.h> +#include "common-defs.h" #include "internal.h" #include "btrfs-list.h" - -#define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024) -#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024) -#define BTRFS_MKFS_DEFAULT_NODE_SIZE 16384 -#define BTRFS_MKFS_DEFAULT_FEATURES \ - (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF \ - | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA) - -/* - * Avoid multi-device features (RAID56) and mixed block groups - */ -#define BTRFS_CONVERT_ALLOWED_FEATURES \ - (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF \ - | BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL \ - | BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO \ - | BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2 \ - | BTRFS_FEATURE_INCOMPAT_BIG_METADATA \ - | BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF \ - | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA \ - | BTRFS_FEATURE_INCOMPAT_NO_HOLES) - -#define BTRFS_CONVERT_META_GROUP_SIZE (32 * 1024 * 1024) - -#define BTRFS_FEATURE_LIST_ALL (1ULL << 63) +#include "sizes.h" +#include "messages.h" #define BTRFS_SCAN_MOUNTED (1ULL << 0) #define BTRFS_SCAN_LBLKID (1ULL << 1) @@ -61,28 +40,6 @@ #define BTRFS_ARG_BLKDEV 3 #define BTRFS_ARG_REG 4 -#define BTRFS_UUID_UNPARSED_SIZE 37 - -#define ARGV0_BUF_SIZE PATH_MAX - -#define GETOPT_VAL_SI 256 -#define GETOPT_VAL_IEC 257 -#define GETOPT_VAL_RAW 258 -#define GETOPT_VAL_HUMAN_READABLE 259 -#define GETOPT_VAL_KBYTES 260 -#define GETOPT_VAL_MBYTES 261 -#define GETOPT_VAL_GBYTES 262 -#define GETOPT_VAL_TBYTES 263 - -#define GETOPT_VAL_HELP 270 - -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 */ @@ -107,57 +64,10 @@ void set_argv0(char **argv); void units_set_mode(unsigned *units, unsigned mode); void units_set_base(unsigned *units, unsigned base); -void btrfs_list_all_fs_features(u64 mask_disallowed); -char* btrfs_parse_fs_features(char *namelist, u64 *flags); -void btrfs_process_fs_features(u64 flags); -void btrfs_parse_features_to_string(char *buf, u64 flags); -void print_kernel_version(FILE *stream, u32 version); -u32 get_running_kernel_version(void); - -struct btrfs_mkfs_config { - char *label; - char fs_uuid[BTRFS_UUID_UNPARSED_SIZE]; - char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE]; - u64 blocks[8]; - u64 num_bytes; - u32 nodesize; - u32 sectorsize; - u32 stripesize; - u64 features; - - /* Super bytenr after make_btrfs */ - u64 super_bytenr; -}; - -struct btrfs_convert_context { - u32 blocksize; - u32 first_data_block; - u32 block_count; - u32 inodes_count; - u32 free_inodes_count; - u64 total_bytes; - char *volume_name; - const struct btrfs_convert_operations *convert_ops; - - /* The accurate used space of old filesystem */ - struct cache_tree used; - - /* Batched ranges which must be covered by data chunks */ - struct cache_tree data_chunks; - - /* Free space which is not covered by data_chunks */ - struct cache_tree free; - - void *fs_data; -}; - #define PREP_DEVICE_ZERO_END (1U << 0) #define PREP_DEVICE_DISCARD (1U << 1) #define PREP_DEVICE_VERBOSE (1U << 2) -int make_btrfs(int fd, struct btrfs_mkfs_config *cfg); -int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg, - struct btrfs_convert_context *cctx); int btrfs_make_root_dir(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid); int btrfs_prepare_device(int fd, const char *file, u64 *block_count_ret, @@ -202,15 +112,11 @@ int btrfs_open_dir(const char *path, DIR **dirstream, int verbose); 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(const char *file, int force_overwrite); int get_label_mounted(const char *mount_path, char *labelp); int get_label_unmounted(const char *dev, char *label); -int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile, - u64 dev_cnt, int mixed, int ssd); int group_profile_max_safe_loss(u64 flags); -int is_vol_small(const char *file); -int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, - int verify); +int csum_tree_block(struct btrfs_fs_info *root, struct extent_buffer *buf, + int verify); int ask_user(const char *question); int lookup_path_rootid(int fd, u64 *rootid); int btrfs_scan_devices(void); @@ -222,242 +128,46 @@ int test_uuid_unique(char *fs_uuid); u64 disk_size(const char *path); u64 get_partition_size(const char *dev); -int test_minimum_size(const char *file, u32 nodesize); int test_issubvolname(const char *name); int test_issubvolume(const char *path); int test_isdir(const char *path); const char *subvol_strip_mountpoint(const char *mnt, const char *full_path); int get_subvol_info(const char *fullpath, struct root_info *get_ri); - -/* - * 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 nodesize) -{ - return (u64)nodesize << 10; -} - -static inline u64 btrfs_min_dev_size(u32 nodesize) -{ - return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE + - btrfs_min_global_blk_rsv_size(nodesize)); -} - +int get_subvol_info_by_rootid(const char *mnt, struct root_info *get_ri, + u64 rootid_arg); +int get_subvol_info_by_uuid(const char *mnt, struct root_info *get_ri, + u8 *uuid_arg); int find_next_key(struct btrfs_path *path, struct btrfs_key *key); const char* btrfs_group_type_str(u64 flag); const char* btrfs_group_profile_str(u64 flag); -/* - * Get the length of the string converted from a u64 number. - * - * Result is equal to log10(num) + 1, but without the use of math library. - */ -static inline int count_digits(u64 num) -{ - int ret = 0; - - if (num == 0) - return 1; - while (num > 0) { - ret++; - num /= 10; - } - return ret; -} - -static inline u64 div_factor(u64 num, int factor) -{ - if (factor == 10) - return num; - num *= factor; - num /= 10; - return num; -} +int count_digits(u64 num); +u64 div_factor(u64 num, int factor); int btrfs_tree_search2_ioctl_supported(int fd); -int btrfs_check_nodesize(u32 nodesize, u32 sectorsize, u64 features); - -const char *get_argv0_buf(void); - -#define HELPINFO_UNITS_LONG \ - "--raw raw numbers in bytes", \ - "--human-readable human friendly numbers, base 1024 (default)", \ - "--iec use 1024 as a base (KiB, MiB, GiB, TiB)", \ - "--si use 1000 as a base (kB, MB, GB, TB)", \ - "--kbytes show sizes in KiB, or kB with --si", \ - "--mbytes show sizes in MiB, or MB with --si", \ - "--gbytes show sizes in GiB, or GB with --si", \ - "--tbytes show sizes in TiB, or TB with --si" - -#define HELPINFO_UNITS_SHORT_LONG \ - "-b|--raw raw numbers in bytes", \ - "-h|--human-readable", \ - " human friendly numbers, base 1024 (default)", \ - "-H human friendly numbers, base 1000", \ - "--iec use 1024 as a base (KiB, MiB, GiB, TiB)", \ - "--si use 1000 as a base (kB, MB, GB, TB)", \ - "-k|--kbytes show sizes in KiB, or kB with --si", \ - "-m|--mbytes show sizes in MiB, or MB with --si", \ - "-g|--gbytes show sizes in GiB, or GB with --si", \ - "-t|--tbytes show sizes in TiB, or TB with --si" unsigned int get_unit_mode_from_arg(int *argc, char *argv[], int df_mode); -void clean_args_no_options(int argc, char *argv[], const char * const *usage); -void clean_args_no_options_relaxed(int argc, char *argv[], - const char * const *usagestr); int string_is_numerical(const char *str); +int prefixcmp(const char *str, const char *prefix); -#if DEBUG_VERBOSE_ERROR -#define PRINT_VERBOSE_ERROR fprintf(stderr, "%s:%d:", __FILE__, __LINE__) -#else -#define PRINT_VERBOSE_ERROR -#endif - -#if DEBUG_TRACE_ON_ERROR -#define PRINT_TRACE_ON_ERROR print_trace() -#else -#define PRINT_TRACE_ON_ERROR -#endif - -#if DEBUG_ABORT_ON_ERROR -#define DO_ABORT_ON_ERROR abort() -#else -#define DO_ABORT_ON_ERROR -#endif - -#define error(fmt, ...) \ - do { \ - PRINT_TRACE_ON_ERROR; \ - PRINT_VERBOSE_ERROR; \ - __error((fmt), ##__VA_ARGS__); \ - DO_ABORT_ON_ERROR; \ - } while (0) - -#define error_on(cond, fmt, ...) \ - do { \ - if ((cond)) \ - PRINT_TRACE_ON_ERROR; \ - if ((cond)) \ - PRINT_VERBOSE_ERROR; \ - __error_on((cond), (fmt), ##__VA_ARGS__); \ - if ((cond)) \ - DO_ABORT_ON_ERROR; \ - } while (0) - -#define warning(fmt, ...) \ - do { \ - PRINT_TRACE_ON_ERROR; \ - PRINT_VERBOSE_ERROR; \ - __warning((fmt), ##__VA_ARGS__); \ - } while (0) - -#define warning_on(cond, fmt, ...) \ - do { \ - if ((cond)) \ - PRINT_TRACE_ON_ERROR; \ - if ((cond)) \ - PRINT_VERBOSE_ERROR; \ - __warning_on((cond), (fmt), ##__VA_ARGS__); \ - } while (0) - -__attribute__ ((format (printf, 1, 2))) -static inline void __warning(const char *fmt, ...) -{ - va_list args; - - fputs("WARNING: ", stderr); - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - fputc('\n', stderr); -} - -__attribute__ ((format (printf, 1, 2))) -static inline void __error(const char *fmt, ...) -{ - va_list args; - - fputs("ERROR: ", stderr); - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - fputc('\n', stderr); -} - -__attribute__ ((format (printf, 2, 3))) -static inline int __warning_on(int condition, const char *fmt, ...) -{ - va_list args; - - if (!condition) - return 0; - - fputs("WARNING: ", stderr); - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - fputc('\n', stderr); - - return 1; -} - -__attribute__ ((format (printf, 2, 3))) -static inline int __error_on(int condition, const char *fmt, ...) -{ - va_list args; - - if (!condition) - return 0; - - fputs("ERROR: ", stderr); - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - fputc('\n', stderr); +/* + * Global program state, configurable by command line and available to + * functions without extra context passing. + */ +struct btrfs_config { +}; +extern struct btrfs_config bconf; - return 1; -} +void btrfs_config_init(void); /* Pseudo random number generator wrappers */ +int rand_int(void); +u8 rand_u8(void); +u16 rand_u16(void); u32 rand_u32(void); - -static inline int rand_int(void) -{ - return (int)(rand_u32()); -} - -static inline u64 rand_u64(void) -{ - u64 ret = 0; - - ret += rand_u32(); - ret <<= 32; - ret += rand_u32(); - return ret; -} - -static inline u16 rand_u16(void) -{ - return (u16)(rand_u32()); -} - -static inline u8 rand_u8(void) -{ - return (u8)(rand_u32()); -} - -/* Return random number in range [0, limit) */ +u64 rand_u64(void); unsigned int rand_range(unsigned int upper); - -/* Also allow setting the seed manually */ void init_rand_seed(u64 seed); #endif |