X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=mdadm.h;h=a73d42a9407ded8a1a6c476410243a410f621905;hb=a34c8836f02c18814f146d3d8b7e415b152ee1ca;hp=bd3063baf4d25d110d89f352a975525fe82ad35e;hpb=3f54bd62dc26c9d9dd3398ad07ab8fbd5a55474d;p=thirdparty%2Fmdadm.git diff --git a/mdadm.h b/mdadm.h index bd3063ba..a73d42a9 100644 --- a/mdadm.h +++ b/mdadm.h @@ -25,9 +25,9 @@ #define _GNU_SOURCE #define _FILE_OFFSET_BITS 64 #include -#if !defined(__dietlibc__) && !defined(__KLIBC__) +#ifdef __GLIBC__ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); -#else +#elif !defined(lseek64) # if defined(__NO_STAT64) || __WORDSIZE != 32 # define lseek64 lseek # endif @@ -51,7 +51,6 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #define srandom srand #endif - #include /*#include */ #include @@ -71,10 +70,10 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); /* MAP_DIR should be somewhere that persists across the pivotroot * from early boot to late boot. - * Currently /dev seems to be the only option on most distros. + * /run seems to have emerged as the best standard. */ #ifndef MAP_DIR -#define MAP_DIR "/dev/.mdadm" +#define MAP_DIR "/run/mdadm" #endif /* MAP_DIR */ /* MAP_FILE is what we name the map file we put in MAP_DIR, in case you * want something other than the default of "map" @@ -83,7 +82,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #define MAP_FILE "map" #endif /* MAP_FILE */ /* MDMON_DIR is where pid and socket files used for communicating - * with mdmon normally live. It *should* be /var/run, but when + * with mdmon normally live. Best is /var/run/mdadm as * mdmon is needed at early boot then it needs to write there prior * to /var/run being mounted read/write, and it also then needs to * persist beyond when /var/run is mounter read-only. So, to be @@ -91,7 +90,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); * boot process and stays up as long as possible during shutdown. */ #ifndef MDMON_DIR -#define MDMON_DIR "/dev/.mdadm/" +#define MDMON_DIR "/run/mdadm" #endif /* MDMON_DIR */ /* FAILED_SLOTS is where to save files storing recent removal of array @@ -99,7 +98,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); * slot for array recovery */ #ifndef FAILED_SLOTS_DIR -#define FAILED_SLOTS_DIR "/dev/.mdadm/failed-slots" +#define FAILED_SLOTS_DIR "/run/mdadm/failed-slots" #endif /* FAILED_SLOTS */ #include "md_u.h" @@ -130,12 +129,12 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #if !defined(__KLIBC__) #if BYTE_ORDER == LITTLE_ENDIAN -#define __cpu_to_le16(_x) (_x) -#define __cpu_to_le32(_x) (_x) -#define __cpu_to_le64(_x) (_x) -#define __le16_to_cpu(_x) (_x) -#define __le32_to_cpu(_x) (_x) -#define __le64_to_cpu(_x) (_x) +#define __cpu_to_le16(_x) (unsigned int)(_x) +#define __cpu_to_le32(_x) (unsigned int)(_x) +#define __cpu_to_le64(_x) (unsigned long long)(_x) +#define __le16_to_cpu(_x) (unsigned int)(_x) +#define __le32_to_cpu(_x) (unsigned int)(_x) +#define __le64_to_cpu(_x) (unsigned long long)(_x) #define __cpu_to_be16(_x) bswap_16(_x) #define __cpu_to_be32(_x) bswap_32(_x) @@ -151,18 +150,17 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #define __le32_to_cpu(_x) bswap_32(_x) #define __le64_to_cpu(_x) bswap_64(_x) -#define __cpu_to_be16(_x) (_x) -#define __cpu_to_be32(_x) (_x) -#define __cpu_to_be64(_x) (_x) -#define __be16_to_cpu(_x) (_x) -#define __be32_to_cpu(_x) (_x) -#define __be64_to_cpu(_x) (_x) +#define __cpu_to_be16(_x) (unsigned int)(_x) +#define __cpu_to_be32(_x) (unsigned int)(_x) +#define __cpu_to_be64(_x) (unsigned long long)(_x) +#define __be16_to_cpu(_x) (unsigned int)(_x) +#define __be32_to_cpu(_x) (unsigned int)(_x) +#define __be64_to_cpu(_x) (unsigned long long)(_x) #else # error "unknown endianness." #endif #endif /* __KLIBC__ */ - /* * min()/max()/clamp() macros that also do * strict type-checking.. See the @@ -180,6 +178,8 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); (void) (&_max1 == &_max2); \ _max1 > _max2 ? _max1 : _max2; }) +#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) + /* general information that might be extracted from a superblock */ struct mdinfo { mdu_array_info_t array; @@ -188,30 +188,44 @@ struct mdinfo { int uuid[4]; char name[33]; unsigned long long data_offset; + unsigned long long new_data_offset; unsigned long long component_size; /* same as array.size, except in * sectors and up to 64bits. */ unsigned long long custom_array_size; /* size for non-default sized * arrays (in sectors) */ +#define NO_RESHAPE 0 +#define VOLUME_RESHAPE 1 +#define CONTAINER_RESHAPE 2 +#define RESHAPE_NO_BACKUP 16 /* Mask 'or'ed in */ int reshape_active; unsigned long long reshape_progress; + int recovery_blocked; /* for external metadata it + * indicates that there is + * reshape in progress in + * container, + * for native metadata it is + * reshape_active field mirror + */ + /* During reshape we can sometimes change the data_offset to avoid + * over-writing still-valid data. We need to know if there is space. + * So getinfo_super will fill in space_before and space_after in sectors. + * data_offset can be increased or decreased by this amount. + */ + unsigned long long space_before, space_after; union { unsigned long long resync_start; /* per-array resync position */ unsigned long long recovery_start; /* per-device rebuild position */ #define MaxSector (~0ULL) /* resync/recovery complete position */ }; + long bitmap_offset; /* 0 == none, 1 == a file */ unsigned long safe_mode_delay; /* ms delay to mark clean */ int new_level, delta_disks, new_layout, new_chunk; int errors; unsigned long cache_size; /* size of raid456 stripe cache*/ int mismatch_cnt; char text_version[50]; - void *update_private; /* for passing metadata-format - * specific update data - * between successive calls to - * update_super() - */ int container_member; /* for assembling external-metatdata arrays * This is to be used internally by metadata @@ -219,7 +233,7 @@ struct mdinfo { int container_enough; /* flag external handlers can set to * indicate that subarrays have not enough (-1), * enough to start (0), or all expected disks (1) */ - char sys_name[20]; + char sys_name[20]; struct mdinfo *devs; struct mdinfo *next; @@ -243,6 +257,7 @@ struct createinfo { int autof; int mode; int symlinks; + int names; struct supertype *supertype; }; @@ -258,6 +273,7 @@ enum mode { GROW, INCREMENTAL, AUTODETECT, + mode_count }; extern char short_options[]; @@ -265,6 +281,7 @@ extern char short_bitmap_options[]; extern char short_bitmap_auto_options[]; extern struct option long_options[]; extern char Version[], Usage[], Help[], OptionHelp[], + *mode_help[], Help_create[], Help_build[], Help_assemble[], Help_grow[], Help_incr[], Help_manage[], Help_misc[], Help_monitor[], Help_config[]; @@ -294,8 +311,11 @@ enum special_options { Brief, ManageOpt, Add, + AddSpare, Remove, Fail, + Replace, + With, MiscOpt, WaitOpt, ConfigFile, @@ -313,6 +333,20 @@ enum special_options { RebuildMapOpt, InvalidBackup, UdevRules, + FreezeReshape, + Continue, + OffRootOpt, + Prefer, + KillOpt, + DataOffset, + ExamineBB, + Dump, + Restore, +}; + +enum prefix_standard { + JEDEC, + IEC }; /* structures read from config file */ @@ -361,15 +395,52 @@ struct mddev_ident { }; }; +struct context { + int readonly; + int runstop; + int verbose; + int brief; + int force; + char *homehost; + int require_homehost; + char *prefer; + int export; + int test; + char *subarray; + char *update; + int scan; + int SparcAdjust; + int autof; + int delay; + int freeze_reshape; + char *backup_file; + int invalid_backup; +}; + +struct shape { + int raiddisks; + int sparedisks; + int level; + int layout; + char *layout_str; + int chunk; + int bitmap_chunk; + char *bitmap_file; + int assume_clean; + int write_behind; + unsigned long long size; +}; + /* List of device names - wildcards expanded */ struct mddev_dev { char *devname; - int disposition; /* 'a' for add, 'r' for remove, 'f' for fail. + int disposition; /* 'a' for add, 'r' for remove, 'f' for fail, + * 'A' for re_add. * Not set for names read from .config */ char writemostly; /* 1 for 'set writemostly', 2 for 'clear writemostly' */ - char re_add; - char used; /* set when used */ + int used; /* set when used */ + long long data_offset; struct mddev_dev *next; }; @@ -378,10 +449,9 @@ typedef struct mapping { int num; } mapping_t; - struct mdstat_ent { char *dev; - int devnum; + char devnm[32]; int active; char *level; char *pattern; /* U or up, _ for down */ @@ -393,40 +463,52 @@ struct mdstat_ent { struct dev_member { char *name; struct dev_member *next; - } *members; + } *members; struct mdstat_ent *next; }; extern struct mdstat_ent *mdstat_read(int hold, int start); +extern void mdstat_close(void); extern void free_mdstat(struct mdstat_ent *ms); extern void mdstat_wait(int seconds); extern void mdstat_wait_fd(int fd, const sigset_t *sigmask); -extern int mddev_busy(int devnum); +extern int mddev_busy(char *devnm); extern struct mdstat_ent *mdstat_by_component(char *name); -extern struct mdstat_ent *mdstat_by_subdev(char *subdev, int container); +extern struct mdstat_ent *mdstat_by_subdev(char *subdev, char *container); struct map_ent { struct map_ent *next; - int devnum; + char devnm[32]; char metadata[20]; int uuid[4]; int bad; char *path; }; -extern int map_update(struct map_ent **mpp, int devnum, char *metadata, +extern int map_update(struct map_ent **mpp, char *devnm, char *metadata, int uuid[4], char *path); -extern void map_remove(struct map_ent **map, int devnum); +extern void map_remove(struct map_ent **map, char *devnm); extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]); -extern struct map_ent *map_by_devnum(struct map_ent **map, int devnum); +#ifdef MDASSEMBLE +static inline struct map_ent *map_by_devnm(struct map_ent **map, char *name) +{ + return NULL; +} +static inline void map_free(struct map_ent *map) +{ +} +#else +extern struct map_ent *map_by_devnm(struct map_ent **map, char *devnm); +extern void map_free(struct map_ent *map); +#endif extern struct map_ent *map_by_name(struct map_ent **map, char *name); extern void map_read(struct map_ent **melp); extern int map_write(struct map_ent *mel); -extern void map_delete(struct map_ent **mapp, int devnum); -extern void map_free(struct map_ent *map); +extern void map_delete(struct map_ent **mapp, char *devnm); extern void map_add(struct map_ent **melp, - int devnum, char *metadata, int uuid[4], char *path); + char *devnm, char *metadata, int uuid[4], char *path); extern int map_lock(struct map_ent **melp); extern void map_unlock(struct map_ent **melp); +extern void map_fork(void); /* various details can be requested */ enum sysfs_read_flags { @@ -440,32 +522,39 @@ enum sysfs_read_flags { GET_DISKS = (1 << 7), GET_DEGRADED = (1 << 8), GET_SAFEMODE = (1 << 9), - GET_DEVS = (1 << 10), /* gets role, major, minor */ - GET_OFFSET = (1 << 11), - GET_SIZE = (1 << 12), - GET_STATE = (1 << 13), - GET_ERROR = (1 << 14), + GET_BITMAP_LOCATION = (1 << 10), + + GET_DEVS = (1 << 20), /* gets role, major, minor */ + GET_OFFSET = (1 << 21), + GET_SIZE = (1 << 22), + GET_STATE = (1 << 23), + GET_ERROR = (1 << 24), }; /* If fd >= 0, get the array it is open on, - * else use devnum. >=0 -> major9. <0..... + * else use devnm. */ -extern int sysfs_open(int devnum, char *devname, char *attr); -extern void sysfs_init(struct mdinfo *mdi, int fd, int devnum); +extern int sysfs_open(char *devnm, char *devname, char *attr); +extern void sysfs_init(struct mdinfo *mdi, int fd, char *devnm); extern void sysfs_free(struct mdinfo *sra); -extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options); +extern struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options); extern int sysfs_attr_match(const char *attr, const char *str); extern int sysfs_match_word(const char *word, char **list); extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev, char *name, char *val); extern int sysfs_set_num(struct mdinfo *sra, struct mdinfo *dev, char *name, unsigned long long val); +extern int sysfs_set_num_signed(struct mdinfo *sra, struct mdinfo *dev, + char *name, long long val); extern int sysfs_uevent(struct mdinfo *sra, char *event); extern int sysfs_get_fd(struct mdinfo *sra, struct mdinfo *dev, char *name); extern int sysfs_fd_get_ll(int fd, unsigned long long *val); extern int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev, char *name, unsigned long long *val); +extern int sysfs_fd_get_two(int fd, unsigned long long *v1, unsigned long long *v2); +extern int sysfs_get_two(struct mdinfo *sra, struct mdinfo *dev, + char *name, unsigned long long *v1, unsigned long long *v2); extern int sysfs_fd_get_str(int fd, char *val, int size); extern int sysfs_attribute_available(struct mdinfo *sra, struct mdinfo *dev, char *name); @@ -475,8 +564,9 @@ extern int sysfs_set_safemode(struct mdinfo *sra, unsigned long ms); extern int sysfs_set_array(struct mdinfo *info, int vers); extern int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int resume); extern int sysfs_disk_to_scsi_id(int fd, __u32 *id); -extern int sysfs_unique_holder(int devnum, long rdev); +extern int sysfs_unique_holder(char *devnm, long rdev); extern int sysfs_freeze_array(struct mdinfo *sra); +extern int sysfs_wait(int fd, int *msec); extern int load_sys(char *path, char *buf); extern int reshape_prepare_fdlist(char *devname, struct mdinfo *sra, @@ -495,9 +585,12 @@ extern int reshape_open_backup_file(char *backup, long blocks, int *fdlist, unsigned long long *offsets, + char *sysfs_name, int restart); extern unsigned long compute_backup_blocks(int nchunk, int ochunk, unsigned int ndata, unsigned int odata); +extern char *locate_backup(char *name); +extern char *make_backup(char *name); extern int save_stripes(int *source, unsigned long long *offsets, int raid_disks, int chunk_size, int level, int layout, @@ -520,13 +613,17 @@ extern char *map_num(mapping_t *map, int num); extern int map_name(mapping_t *map, char *name); extern mapping_t r5layout[], r6layout[], pers[], modes[], faultylayout[]; -extern char *map_dev(int major, int minor, int create); +extern char *map_dev_preferred(int major, int minor, int create, + char *prefer); +static inline char *map_dev(int major, int minor, int create) +{ + return map_dev_preferred(major, minor, create, NULL); +} struct active_array; struct metadata_update; - -/* 'struct reshape' records the intermediate states +/* 'struct reshape' records the intermediate states of * a general reshape. * The starting geometry is converted to the 'before' geometry * by at most an atomic level change. They could be the same. @@ -537,6 +634,10 @@ struct metadata_update; * This will be a multiple of the stripe size in each of the * 'before' and 'after' geometries. * If 'blocks' is 0, no restriping is necessary. + * 'min_offset_change' is the minimum change to data_offset to + * allow the reshape to happen. It is at least the larger of + * the old and new chunk sizes, and typically the same as 'blocks' + * divided by number of data disks. */ struct reshape { int level; @@ -546,13 +647,14 @@ struct reshape { int data_disks; } before, after; unsigned long long backup_blocks; + unsigned long long min_offset_change; unsigned long long stripes; /* number of old stripes that comprise 'blocks'*/ unsigned long long new_size; /* New size of array in sectors */ }; /* A superswitch provides entry point the a metadata handler. * - * The super_switch primarily operates on some "metadata" that + * The superswitch primarily operates on some "metadata" that * is accessed via the 'supertype'. * This metadata has one of three possible sources. * 1/ It is read from a single device. In this case it may not completely @@ -586,6 +688,8 @@ extern struct superswitch { void (*brief_examine_super)(struct supertype *st, int verbose); void (*brief_examine_subarrays)(struct supertype *st, int verbose); void (*export_examine_super)(struct supertype *st); + int (*examine_badblocks)(struct supertype *st, int fd, char *devname); + int (*copy_metadata)(struct supertype *st, int from, int to); /* Used to report details of an active array. * ->load_super was possibly given a 'component' string. @@ -595,7 +699,8 @@ extern struct superswitch { void (*export_detail_super)(struct supertype *st); /* Optional: platform hardware / firmware details */ - int (*detail_platform)(int verbose, int enumerate_only); + int (*detail_platform)(int verbose, int enumerate_only, char *controller_path); + int (*export_detail_platform)(int verbose, char *controller_path); /* Used: * to get uuid to storing in bitmap metadata @@ -648,6 +753,11 @@ extern struct superswitch { * linear-grow-update - now change the size of the array. * writemostly - set the WriteMostly1 bit in the superblock devflags * readwrite - clear the WriteMostly1 bit in the superblock devflags + * no-bitmap - clear any record that a bitmap is present. + * bbl - add a bad-block-log if possible + * no-bbl - remove and bad-block-log is it is empty. + * revert-reshape - If a reshape is in progress, modify metadata so + * it will resume going in the opposite direction. */ int (*update_super)(struct supertype *st, struct mdinfo *info, char *update, @@ -661,13 +771,15 @@ extern struct superswitch { */ int (*init_super)(struct supertype *st, mdu_array_info_t *info, unsigned long long size, char *name, - char *homehost, int *uuid); + char *homehost, int *uuid, + unsigned long long data_offset); /* update the metadata to include new device, either at create or * when hot-adding a spare. */ int (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo, - int fd, char *devname); + int fd, char *devname, + unsigned long long data_offset); /* update the metadata to delete a device, * when hot-removing. */ @@ -681,34 +793,84 @@ extern struct superswitch { /* Write all metadata for this array. */ int (*write_init_super)(struct supertype *st); + /* Check if metadata read from one device is compatible with an array, + * used when assembling an array, or pseudo-assembling was with + * "--examine --brief" + * If "st" has not yet been loaded the superblock from, "tst" is + * moved in, otherwise the superblock in 'st' is compared with + * 'tst'. + */ int (*compare_super)(struct supertype *st, struct supertype *tst); + /* Load metadata from a single device. If 'devname' is not NULL + * print error messages as appropriate */ int (*load_super)(struct supertype *st, int fd, char *devname); + /* 'fd' is a 'container' md array - load array metadata from the + * whole container. + */ int (*load_container)(struct supertype *st, int fd, char *devname); + /* If 'arg' is a valid name of this metadata type, allocate and + * return a 'supertype' for the particular minor version */ struct supertype * (*match_metadata_desc)(char *arg); - __u64 (*avail_size)(struct supertype *st, __u64 size); + /* If a device has the given size, and the data_offset has been + * requested - work out how much space is available for data. + * This involves adjusting for reserved space (e.g. bitmaps) + * and for any rounding. + * 'mdadm' only calls this for existing arrays where a possible + * spare is being added. However some super-handlers call it + * internally from validate_geometry when creating an array. + */ + __u64 (*avail_size)(struct supertype *st, __u64 size, + unsigned long long data_offset); + /* This is similar to 'avail_size' in purpose, but is used for + * containers for which there is no 'component size' to compare. + * This reports that whole-device size which is a minimum + */ unsigned long long (*min_acceptable_spare_size)(struct supertype *st); + /* Find somewhere to put a bitmap - possibly auto-size it - and + * update the metadata to record this. The array may be newly + * created, in which case data_size may be updated, or it might + * already exist. Metadata handler can know if init_super + * has been called, but not write_init_super. + */ int (*add_internal_bitmap)(struct supertype *st, int *chunkp, int delay, int write_behind, unsigned long long size, int may_change, int major); + /* Seek 'fd' to start of write-intent-bitmap. Must be an + * md-native format bitmap + */ void (*locate_bitmap)(struct supertype *st, int fd); + /* if add_internal_bitmap succeeded for existing array, this + * writes it out. + */ int (*write_bitmap)(struct supertype *st, int fd); + /* Free the superblock and any other allocated data */ void (*free_super)(struct supertype *st); /* validate_geometry is called with an st returned by * match_metadata_desc. - * It should check that the geometry described in compatible with + * It should check that the geometry described is compatible with * the metadata type. It will be called repeatedly as devices * added to validate changing size and new devices. If there are * inter-device dependencies, it should record sufficient details * so these can be validated. * Both 'size' and '*freesize' are in sectors. chunk is KiB. + * Return value is: + * 1: everything is OK + * 0: not OK for some reason - if 'verbose', then error was reported. + * -1: st->sb was NULL, 'subdev' is a member of a container of this + * type, but array is not acceptable for some reason + * message was reported even if verbose is 0. */ int (*validate_geometry)(struct supertype *st, int level, int layout, int raiddisks, int *chunk, unsigned long long size, + unsigned long long data_offset, char *subdev, unsigned long long *freesize, int verbose); + /* Return a linked list of 'mdinfo' structures for all arrays + * in the container. For non-containers, it is like + * getinfo_super with an allocated mdinfo.*/ struct mdinfo *(*container_content)(struct supertype *st, char *subarray); /* query the supertype for default geometry */ void (*default_geometry)(struct supertype *st, int *level, int *layout, int *chunk); /* optional */ @@ -722,9 +884,14 @@ extern struct superswitch { * initialized to indicate if reshape is being performed at the * container or subarray level */ - int (*reshape_super)(struct supertype *st, long long size, int level, +#define APPLY_METADATA_CHANGES 1 +#define ROLLBACK_METADATA_CHANGES 0 + + int (*reshape_super)(struct supertype *st, + unsigned long long size, int level, int layout, int chunksize, int raid_disks, int delta_disks, char *backup, char *dev, + int direction, int verbose); /* optional */ int (*manage_reshape)( /* optional */ int afd, struct mdinfo *sra, struct reshape *reshape, @@ -742,7 +909,7 @@ extern struct superswitch { * (in a->resync_start). * resync status is really irrelevant if the array is not consistent, * but some metadata (DDF!) have a place to record the distinction. - * If 'consistent' is '2', then the array can mark it dirty if a + * If 'consistent' is '2', then the array can mark it dirty if a * resync/recovery/whatever is required, or leave it clean if not. * Return value is 0 dirty (not consistent) and 1 if clean. * it is only really important if consistent is passed in as '2'. @@ -831,9 +998,12 @@ struct supertype { struct superswitch *ss; int minor_version; int max_devs; - int container_dev; /* devnum of container */ + char container_devnm[32]; /* devnm of container */ void *sb; void *info; + void *other; /* Hack used to convert v0.90 to v1.0 */ + unsigned long long devsize; + unsigned long long data_offset; /* used by v1.x only */ int ignore_hw_compat; /* used to inform metadata handlers that it should ignore HW/firmware related incompatability to load metadata. Used when examining metadata to display content of disk @@ -845,11 +1015,11 @@ struct supertype { /* extra stuff used by mdmon */ struct active_array *arrays; int sock; /* listen to external programs */ - int devnum; - char *devname; /* e.g. md0. This appears in metadata_verison: - * external:/md0/12 - */ + char devnm[32]; /* e.g. md0. This appears in metadata_version: + * external:/md0/12 + */ int devcnt; + int retry_soon; struct mdinfo *devs; @@ -865,8 +1035,6 @@ extern struct supertype *dup_super(struct supertype *st); extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); extern int must_be_container(int fd); extern int dev_size_from_id(dev_t id, unsigned long long *size); -extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, - mdu_disk_info_t *disk); void wait_for(char *dev, int fd); /* @@ -924,7 +1092,7 @@ extern void policy_free(void); extern struct dev_policy *path_policy(char *path, char *type); extern struct dev_policy *disk_policy(struct mdinfo *disk); -extern struct dev_policy *devnum_policy(int dev); +extern struct dev_policy *devid_policy(int devid); extern void dev_policy_free(struct dev_policy *p); //extern void pol_new(struct dev_policy **pol, char *name, char *val, char *metadata); @@ -956,7 +1124,7 @@ extern int domain_test(struct domainlist *dom, struct dev_policy *pol, const char *metadata); extern struct domainlist *domain_from_array(struct mdinfo *mdi, const char *metadata); -extern void domainlist_add_dev(struct domainlist **dom, int devnum, +extern void domainlist_add_dev(struct domainlist **dom, int devid, const char *metadata); extern void domain_free(struct domainlist *dl); extern void domain_merge(struct domainlist **domp, struct dev_policy *pol, @@ -1006,75 +1174,74 @@ struct stat64; 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, int quiet); -extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); +extern int Manage_run(char *devname, int fd, struct context *c); +extern int Manage_stop(char *devname, int fd, int quiet, + int will_retry); extern int Manage_subdevs(char *devname, int fd, struct mddev_dev *devlist, int verbose, int test, char *update, int force); extern int autodetect(void); 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, char *layout_str, int chunksize, int raid_disks, +extern int Grow_addbitmap(char *devname, int fd, + struct context *c, struct shape *s); +extern int Grow_reshape(char *devname, int fd, struct mddev_dev *devlist, - int assume_clean, int force); + unsigned long long data_offset, + struct context *c, struct shape *s); extern int Grow_restart(struct supertype *st, struct mdinfo *info, int *fdlist, int cnt, char *backup_file, int verbose); extern int Grow_continue(int mdfd, struct supertype *st, - struct mdinfo *info, char *backup_file); + struct mdinfo *info, char *backup_file, + int freeze_reshape); + extern int restore_backup(struct supertype *st, struct mdinfo *content, int working_disks, int spares, - char *backup_file, + char **backup_filep, int verbose); +extern int Grow_continue_command(char *devname, int fd, + char *backup_file, int verbose); extern int Assemble(struct supertype *st, char *mddev, struct mddev_ident *ident, struct mddev_dev *devlist, - char *backup_file, int invalid_backup, - int readonly, int runstop, - char *update, char *homehost, int require_homehost, - int verbose, int force); - -extern int Build(char *mddev, int chunk, int level, int layout, - int raiddisks, struct mddev_dev *devlist, int assume_clean, - char *bitmap_file, int bitmap_chunk, int write_behind, - int delay, int verbose, int autof, unsigned long long size); + struct context *c); +extern int Build(char *mddev, struct mddev_dev *devlist, + struct shape *s, struct context *c); extern int Create(struct supertype *st, char *mddev, - int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, - char *name, char *homehost, int *uuid, + char *name, int *uuid, int subdevs, struct mddev_dev *devlist, - int runstop, int verbose, int force, int assume_clean, - char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int autof); + struct shape *s, + struct context *c, + unsigned long long data_offset); -extern int Detail(char *dev, int brief, int export, int test, char *homehost); -extern int Detail_Platform(struct superswitch *ss, int scan, int verbose); +extern int Detail(char *dev, struct context *c); +extern int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path); extern int Query(char *dev); -extern int Examine(struct mddev_dev *devlist, int brief, int export, int scan, - int SparcAdjust, struct supertype *forcest, char *homehost); +extern int ExamineBadblocks(char *devname, int brief, struct supertype *forcest); +extern int Examine(struct mddev_dev *devlist, struct context *c, + struct supertype *forcest); extern int Monitor(struct mddev_dev *devlist, char *mailaddr, char *alert_cmd, - int period, int daemonise, int scan, int oneshot, - int dosyslog, int test, char *pidfile, int increments, + struct context *c, + int daemonise, int oneshot, + int dosyslog, char *pidfile, int increments, int share); -extern int Kill(char *dev, struct supertype *st, int force, int quiet, int noexcl); -extern int Kill_subarray(char *dev, char *subarray, int quiet); +extern int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl); +extern int Kill_subarray(char *dev, char *subarray, int verbose); extern int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet); extern int Wait(char *dev); extern int WaitClean(char *dev, int sock, int verbose); -extern int Incremental(char *devname, int verbose, int runstop, - struct supertype *st, char *homehost, int require_homehost, - int autof); +extern int Incremental(struct mddev_dev *devlist, struct context *c, + struct supertype *st); extern void RebuildMap(void); -extern int IncrementalScan(int verbose); +extern int IncrementalScan(struct context *c, char *devnm); extern int IncrementalRemove(char *devname, char *path, int verbose); extern int CreateBitmap(char *filename, int force, char uuid[16], unsigned long chunksize, unsigned long daemon_sleep, @@ -1085,14 +1252,19 @@ extern int ExamineBitmap(char *filename, int brief, struct supertype *st); extern int Write_rules(char *rule_name); extern int bitmap_update_uuid(int fd, int *uuid, int swap); extern unsigned long bitmap_sectors(struct bitmap_super_s *bsb); +extern int Dump_metadata(char *dev, char *dir, struct context *c, + struct supertype *st); +extern int Restore_metadata(char *dev, char *dir, struct context *c, + struct supertype *st, int only); extern int md_get_version(int fd); extern int get_linux_version(void); extern int mdadm_version(char *version); -extern long long parse_size(char *size); +extern unsigned long long parse_size(char *size); extern int parse_uuid(char *str, int uuid[4]); extern int parse_layout_10(char *layout); extern int parse_layout_faulty(char *layout); +extern long parse_num(char *num); extern int check_ext2(int fd, char *name); extern int check_reiser(int fd, char *name); extern int check_raid(int fd, char *name); @@ -1102,11 +1274,14 @@ extern int check_partitions(int fd, char *dname, extern int get_mdp_major(void); extern int dev_open(char *dev, int flags); -extern int open_dev(int devnum); -extern int open_dev_flags(int devnum, int flags); -extern int open_dev_excl(int devnum); +extern int open_dev(char *devnm); +extern void reopen_mddev(int mdfd); +extern int open_dev_flags(char *devnm, int flags); +extern int open_dev_excl(char *devnm); extern int is_standard(char *dev, int *nump); extern int same_dev(char *one, char *two); +extern int compare_paths (char* path1,char* path2); +extern void enable_fds(int devices); extern int parse_auto(char *str, char *msg, int config); extern struct mddev_ident *conf_get_ident(char *dev); @@ -1121,9 +1296,17 @@ extern char *conf_get_program(void); extern char *conf_get_homehost(int *require_homehostp); extern char *conf_line(FILE *file); extern char *conf_word(FILE *file, int allow_key); +extern void print_quoted(char *str); +extern void print_escape(char *str); +extern int use_udev(void); +extern unsigned long GCD(unsigned long a, unsigned long b); extern int conf_name_is_free(char *name); +extern int conf_verify_devnames(struct mddev_ident *array_list); extern int devname_matches(char *name, char *match); -extern struct mddev_ident *conf_match(struct mdinfo *info, struct supertype *st); +extern struct mddev_ident *conf_match(struct supertype *st, + struct mdinfo *info, + char *devname, + int verbose, int *rvp); extern int experimental(void); extern void free_line(char *line); @@ -1137,21 +1320,26 @@ extern char *fname_from_uuid(struct supertype *st, struct mdinfo *info, char *buf, char sep); extern unsigned long calc_csum(void *super, int bytes); extern int enough(int level, int raid_disks, int layout, int clean, - char *avail, int avail_disks); + char *avail); extern int enough_fd(int fd); extern int ask(char *mesg); extern unsigned long long get_component_size(int fd); extern void remove_partitions(int fd); extern int test_partition(int fd); extern int test_partition_from_id(dev_t id); +extern int get_data_disks(int level, int layout, int raid_disks); extern unsigned long long calc_array_size(int level, int raid_disks, int layout, int chunksize, unsigned long long devsize); extern int flush_metadata_updates(struct supertype *st); extern void append_metadata_update(struct supertype *st, void *buf, int len); extern int assemble_container_content(struct supertype *st, int mdfd, - struct mdinfo *content, int runstop, - char *chosen_name, int verbose, - char *backup_file); + struct mdinfo *content, + struct context *c, + char *chosen_name, int *result); +#define INCR_NO 1 +#define INCR_UNSAFE 2 +#define INCR_ALREADY 4 +#define INCR_YES 8 extern struct mdinfo *container_choose_spares(struct supertype *st, unsigned long long min_size, struct domainlist *domlist, @@ -1166,14 +1354,16 @@ extern int set_array_info(int mdfd, struct supertype *st, struct mdinfo *info); unsigned long long min_recovery_start(struct mdinfo *array); extern char *human_size(long long bytes); -extern char *human_size_brief(long long bytes); +extern char *human_size_brief(long long bytes, int prefix); extern void print_r10_layout(int layout); -#define NoMdDev (1<<23) -extern int find_free_devnum(int use_partitions); +extern char *find_free_devnm(int use_partitions); extern void put_md_name(char *name); -extern char *get_md_name(int dev); +extern char *devid2kname(int devid); +extern char *devid2devnm(int devid); +extern int devnm2devid(char *devnm); +extern char *get_md_name(char *devnm); extern char DefaultConfFile[]; @@ -1186,16 +1376,18 @@ extern int create_mddev(char *dev, char *name, int autof, int trustworthy, #define METADATA 3 extern int open_mddev(char *dev, int report_errors); extern int open_container(int fd); +extern int metadata_container_matches(char *metadata, char *devnm); +extern int metadata_subdev_matches(char *metadata, char *devnm); extern int is_container_member(struct mdstat_ent *ent, char *devname); extern int is_subarray_active(char *subarray, char *devname); extern int open_subarray(char *dev, char *subarray, struct supertype *st, int quiet); extern struct superswitch *version_to_superswitch(char *vers); -extern int mdmon_running(int devnum); -extern int mdmon_pid(int devnum); +extern int mdmon_running(char *devnm); +extern int mdmon_pid(char *devnm); extern int check_env(char *name); extern __u32 random32(void); -extern int start_mdmon(int devnum); +extern int start_mdmon(char *devnm); extern int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape, struct supertype *st, unsigned long stripes, @@ -1203,36 +1395,23 @@ extern int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape, int dests, int *destfd, unsigned long long *destoffsets); void abort_reshape(struct mdinfo *sra); -extern char *devnum2devname(int num); -extern void fmt_devname(char *name, int num); -extern int devname2devnum(char *name); -extern int stat2devnum(struct stat *st); -extern int fd2devnum(int fd); +void *super1_make_v0(struct supertype *st, struct mdinfo *info, mdp_super_t *sb0); -static inline int dev2major(int d) -{ - if (d >= 0) - return MD_MAJOR; - else - return get_mdp_major(); -} +extern void fmt_devname(char *name, int num); +extern char *stat2devnm(struct stat *st); +extern char *fd2devnm(int fd); -static inline int dev2minor(int d) -{ - if (d >= 0) - return d; - return (-1-d) << MdpMinorShift; -} +extern int in_initrd(void); -static inline int ROUND_UP(int a, int base) -{ - return ((a+base-1)/base)*base; -} +#define _ROUND_UP(val, base) (((val) + (base) - 1) & ~(base - 1)) +#define ROUND_UP(val, base) _ROUND_UP(val, (typeof(val))(base)) +#define ROUND_UP_PTR(ptr, base) ((typeof(ptr)) \ + (ROUND_UP((unsigned long)(ptr), base))) static inline int is_subarray(char *vers) { /* The version string for a 'subarray' (an array in a container) - * is + * is * /containername/componentname for normal read-write arrays * -containername/componentname for arrays which mdmon must not * reconfigure. They might be read-only @@ -1267,6 +1446,14 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { return ret; } +#define pr_err(fmt ...) fprintf(stderr, Name ": " fmt) +#define cont_err(fmt ...) fprintf(stderr, " " fmt) + +void *xmalloc(size_t len); +void *xrealloc(void *ptr, size_t len); +void *xcalloc(size_t num, size_t size); +char *xstrdup(const char *str); + #define LEVEL_MULTIPATH (-4) #define LEVEL_LINEAR (-1) #define LEVEL_FAULTY (-5) @@ -1275,6 +1462,8 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { #define LEVEL_CONTAINER (-100) #define LEVEL_UNSUPPORTED (-200) +/* the kernel does know about this one ... */ +#define LEVEL_NONE (-1000000) /* faulty stuff */ @@ -1295,7 +1484,6 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { #define ModeMask 0x1f #define ModeShift 5 - #ifdef __TINYC__ #undef minor #undef major @@ -1333,7 +1521,6 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { #define ALGORITHM_ROTATING_N_RESTART 9 /* DDF PRL=6 RLQ=2 */ #define ALGORITHM_ROTATING_N_CONTINUE 10 /*DDF PRL=6 RLQ=3 */ - /* For every RAID5 algorithm we define a RAID6 algorithm * with exactly the same layout for data and parity, and * with the Q block always on the last device (N-1). @@ -1353,5 +1540,27 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { #define PATH_MAX 4096 #endif -#define PROCESS_DELAYED -2 -#define PROCESS_PENDING -3 +#define RESYNC_NONE -1 +#define RESYNC_DELAYED -2 +#define RESYNC_PENDING -3 +#define RESYNC_UNKNOWN -4 + +/* When using "GET_DISK_INFO" it isn't certain how high + * we need to check. So we impose an absolute limit of + * MAX_DISKS. This needs to be much more than the largest + * number of devices any metadata can support. Currently + * v1.x can support 1920 + */ +#define MAX_DISKS 4096 + +/* Sometimes the 'size' value passed needs to mean "Maximum". + * In those cases with use MAX_SIZE + */ +#define MAX_SIZE 1 + +/* We want to use unsigned numbers for sector counts, but need + * a value for 'invalid'. Use '1'. + */ +#define INVALID_SECTORS 1 +/* And another special number needed for --data_offset=variable */ +#define VARIABLE_OFFSET 3