X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=blobdiff_plain;f=mdadm.h;h=a9ae698d36a1b2e7fe07f7b8e15050387b4454cc;hp=491d9075993538e7baf81cd6dbc70b44b61f4c2d;hb=16c6fa807c1e43a1a12bbeb7668b4166d14b2cc8;hpb=f9ce90ba509d0b624cc38635861b9c27550fbefc diff --git a/mdadm.h b/mdadm.h index 491d9075..a9ae698d 100644 --- a/mdadm.h +++ b/mdadm.h @@ -37,11 +37,13 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #include #include #include +#include #include #include #include #include #include +#include #ifdef __dietlibc__NONO int strncmp(const char *s1, const char *s2, size_t n) __THROW __pure__; char *strncpy(char *dest, const char *src, size_t n) __THROW; @@ -61,16 +63,40 @@ char *strncpy(char *dest, const char *src, size_t n) __THROW; #define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */ #endif +#define DEFAULT_BITMAP_CHUNK 4096 +#define DEFAULT_BITMAP_DELAY 5 +#define DEFAULT_MAX_WRITE_BEHIND 256 #include "md_u.h" #include "md_p.h" +#include "bitmap.h" + +#include +/* #include "asm/byteorder.h" Redhat don't like this so... */ +#if __BYTE_ORDER == __LITTLE_ENDIAN +# include +#elif __BYTE_ORDER == __BIG_ENDIAN +# include +#elif __BYTE_ORDER == __PDP_ENDIAN +# include +#else +# error "unknown endianness." +#endif + + /* general information that might be extracted from a superblock */ struct mdinfo { mdu_array_info_t array; mdu_disk_info_t disk; __u64 events; - unsigned int uuid[4]; + int uuid[4]; + char name[33]; + unsigned long long data_offset; + unsigned long long component_size; + int reshape_active; + unsigned long long reshape_progress; + int new_level, delta_disks, new_layout, new_chunk; }; #define Name "mdadm" @@ -86,6 +112,7 @@ enum mode { }; extern char short_options[]; +extern char short_bitmap_auto_options[]; extern struct option long_options[]; extern char Version[], Usage[], Help[], OptionHelp[], Help_create[], Help_build[], Help_assemble[], Help_grow[], @@ -106,7 +133,8 @@ typedef struct mddev_ident_s { char *devname; int uuid_set; - __u32 uuid[4]; + int uuid[4]; + char name[33]; unsigned int super_minor; @@ -116,9 +144,10 @@ typedef struct mddev_ident_s { int level; unsigned int raid_disks; unsigned int spare_disks; - struct superswitch *ss; + struct supertype *st; int autof; /* 1 for normal, 2 for partitioned */ char *spare_group; + int bitmap_fd; struct mddev_ident_s *next; } *mddev_ident_t; @@ -129,6 +158,8 @@ typedef struct mddev_dev_s { char disposition; /* 'a' for add, 'r' for remove, 'f' for fail. * Not set for names read from .config */ + char writemostly; + char re_add; struct mddev_dev_s *next; } *mddev_dev_t; @@ -149,19 +180,73 @@ struct mdstat_ent { struct mdstat_ent *next; }; -extern struct mdstat_ent *mdstat_read(int); +extern struct mdstat_ent *mdstat_read(int hold, int start); extern void free_mdstat(struct mdstat_ent *ms); extern void mdstat_wait(int seconds); +/* Data structure for holding info read from sysfs */ +struct sysdev { + char name[20]; + int role; + int major, minor; + unsigned long long offset, size; + int state; + int errors; + struct sysdev *next; +}; +struct sysarray { + char name[20]; + struct sysdev *devs; + int chunk; + unsigned long long component_size; + int layout; + int level; + int spares; +}; +/* various details can be requested */ +#define GET_LEVEL 1 +#define GET_LAYOUT 2 +#define GET_COMPONENT 4 +#define GET_CHUNK 8 + +#define GET_DEVS 1024 /* gets role, major, minor */ +#define GET_OFFSET 2048 +#define GET_SIZE 4096 +#define GET_STATE 8192 +#define GET_ERROR 16384 + +/* If fd >= 0, get the array it is open on, + * else use devnum. >=0 -> major9. <0..... + */ +extern struct sysarray *sysfs_read(int fd, int devnum, unsigned long options); +extern int sysfs_set_str(struct sysarray *sra, struct sysdev *dev, + char *name, char *val); +extern int sysfs_set_num(struct sysarray *sra, struct sysdev *dev, + char *name, unsigned long long val); +extern int sysfs_get_ll(struct sysarray *sra, struct sysdev *dev, + char *name, unsigned long long *val); + + +extern int save_stripes(int *source, unsigned long long *offsets, + int raid_disks, int chunk_size, int level, int layout, + int nwrites, int *dest, + unsigned long long start, unsigned long long length); +extern int restore_stripes(int *dest, unsigned long long *offsets, + int raid_disks, int chunk_size, int level, int layout, + int source, unsigned long long read_offset, + unsigned long long start, unsigned long long length); + #ifndef Sendmail #define Sendmail "/usr/lib/sendmail -t" #endif +#define SYSLOG_FACILITY LOG_DAEMON + extern char *map_num(mapping_t *map, int num); extern int map_name(mapping_t *map, char *name); extern mapping_t r5layout[], pers[], modes[], faultylayout[]; -extern char *map_dev(int major, int minor); +extern char *map_dev(int major, int minor, int create); extern struct superswitch { @@ -173,56 +258,103 @@ extern struct superswitch { void (*getinfo_super)(struct mdinfo *info, void *sbv); int (*update_super)(struct mdinfo *info, void *sbv, char *update, char *devname, int verbose); __u64 (*event_super)(void *sbv); - void (*init_super)(void **sbp, mdu_array_info_t *info); + int (*init_super)(struct supertype *st, void **sbp, mdu_array_info_t *info, unsigned long long size, char *name); void (*add_to_super)(void *sbv, mdu_disk_info_t *dinfo); - int (*store_super)(int fd, void *sbv); - int (*write_init_super)(void *sbv, mdu_disk_info_t *dinfo, char *devname); + int (*store_super)(struct supertype *st, int fd, void *sbv); + int (*write_init_super)(struct supertype *st, void *sbv, mdu_disk_info_t *dinfo, char *devname); int (*compare_super)(void **firstp, void *secondv); - int (*load_super)(int fd, void **sbp, char *devname); - int (*match_metadata_desc)(char *arg); -} super0, *superlist[]; + int (*load_super)(struct supertype *st, int fd, void **sbp, char *devname); + struct supertype * (*match_metadata_desc)(char *arg); + __u64 (*avail_size)(struct supertype *st, __u64 size); + int (*add_internal_bitmap)(struct supertype *st, void *sbv, int chunk, int delay, int write_behind, + unsigned long long size, int may_change, int major); + void (*locate_bitmap)(struct supertype *st, int fd, void *sbv); + int (*write_bitmap)(struct supertype *st, int fd, void *sbv); + int major; + int swapuuid; /* true if uuid is bigending rather than hostendian */ +} super0, super1, *superlist[]; + +struct supertype { + struct superswitch *ss; + int minor_version; + int max_devs; +}; + +extern struct supertype *super_by_version(int vers, int minor); +extern struct supertype *guess_super(int fd); + +#if __GNUC__ < 3 +struct stat64; +#endif + +#ifdef UCLIBC + struct FTW {}; +# define FTW_PHYS 1 +#else +# define __USE_XOPEN_EXTENDED +# include +# ifdef __dietlibc__ +# define FTW_PHYS 1 +# endif +#endif -extern struct superswitch *super_by_version(int vers); -extern struct superswitch *guess_super(int fd, char *dev); +extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s); extern int Manage_ro(char *devname, int fd, int readonly); -extern int Manage_runstop(char *devname, int fd, int runstop); +extern int Manage_runstop(char *devname, int fd, int runstop, int quiet); extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); extern int Manage_reconfig(char *devname, int fd, int layout); extern int Manage_subdevs(char *devname, int fd, - mddev_dev_t devlist); + mddev_dev_t devlist, int verbose); extern int Grow_Add_device(char *devname, int fd, char *newdev); +extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force); +extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, + long long size, + int level, int layout, int chunksize, int raid_disks); +extern int Grow_restart(struct supertype *st, struct mdinfo *info, + int *fdlist, int cnt, char *backup_file); -extern int Assemble(struct superswitch *ss, char *mddev, int mdfd, +extern int Assemble(struct supertype *st, char *mddev, int mdfd, mddev_ident_t ident, char *conffile, - mddev_dev_t devlist, + mddev_dev_t devlist, char *backup_file, int readonly, int runstop, char *update, int verbose, int force); extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, int raiddisks, - mddev_dev_t devlist, int assume_clean); + mddev_dev_t devlist, int assume_clean, + char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose); -extern int Create(struct superswitch *ss, char *mddev, int mdfd, - int chunk, int level, int layout, unsigned long size, int raiddisks, int sparedisks, +extern int Create(struct supertype *st, char *mddev, int mdfd, + int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, + char *name, int subdevs, mddev_dev_t devlist, - int runstop, int verbose, int force); + int runstop, int verbose, int force, int assume_clean, + char *bitmap_file, int bitmap_chunk, int write_behind, int delay); extern int Detail(char *dev, int brief, int test); extern int Query(char *dev); -extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust); +extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust, + struct supertype *forcest); extern int Monitor(mddev_dev_t devlist, char *mailaddr, char *alert_cmd, int period, int daemonise, int scan, int oneshot, - char *config, int test, char *pidfile); + int dosyslog, char *config, int test, char *pidfile); extern int Kill(char *dev, int force); +extern int CreateBitmap(char *filename, int force, char uuid[16], + unsigned long chunksize, unsigned long daemon_sleep, + unsigned long write_behind, + unsigned long long array_size, + int major); +extern int ExamineBitmap(char *filename, int brief, struct supertype *st); + extern int md_get_version(int fd); extern int get_linux_version(void); extern int parse_uuid(char *str, int uuid[4]); @@ -231,6 +363,7 @@ extern int check_reiser(int fd, char *name); extern int check_raid(int fd, char *name); extern int get_mdp_major(void); +extern int dev_open(char *dev, int flags); extern int is_standard(char *dev, int *nump); @@ -243,12 +376,13 @@ extern char *conf_word(FILE *file, int allow_key); extern void free_line(char *line); extern int match_oneof(char *devices, char *devname); extern void uuid_from_super(int uuid[4], mdp_super_t *super); -extern int same_uuid(int a[4], int b[4]); +extern int same_uuid(int a[4], int b[4], int swapuuid); /* extern int compare_super(mdp_super_t *first, mdp_super_t *second);*/ extern unsigned long calc_csum(void *super, int bytes); -extern int store_super(int fd, mdp_super_t *super); -extern int enough(int level, int raid_disks, int avail_disks); +extern int enough(int level, int raid_disks, int layout, + char *avail, int avail_disks); extern int ask(char *mesg); +extern unsigned long long get_component_size(int fd); extern char *human_size(long long bytes); @@ -285,3 +419,19 @@ extern int open_mddev(char *dev, int autof); #define ModeMask 0x1f #define ModeShift 5 + + +#ifdef __TINYC__ +#undef minor +#undef major +#undef makedev +#define minor(x) ((x)&0xff) +#define major(x) (((x)>>8)&0xff) +#define makedev(M,m) (((M)<<8) | (m)) +#endif + +/* for raid5 */ +#define ALGORITHM_LEFT_ASYMMETRIC 0 +#define ALGORITHM_RIGHT_ASYMMETRIC 1 +#define ALGORITHM_LEFT_SYMMETRIC 2 +#define ALGORITHM_RIGHT_SYMMETRIC 3