X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=mdadm.h;h=013ed6415dd424a0fe3c4793075e842462335864;hb=1ab97c976b3f1cdc6d36d72a42ae863188555732;hp=e0837acb6234310416b707ca8f3cb16baec5baa8;hpb=a7dec3fd92e9b77b0bc7bb8e8e0b4c878baef45a;p=thirdparty%2Fmdadm.git diff --git a/mdadm.h b/mdadm.h index e0837acb..013ed641 100644 --- a/mdadm.h +++ b/mdadm.h @@ -35,6 +35,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #include #include +#include #include #include #include @@ -44,6 +45,10 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #include #include #include +#ifdef __GLIBC__ +/* Newer glibc requires sys/sysmacros.h directly for makedev() */ +#include +#endif #ifdef __dietlibc__ #include /* dietlibc has deprecated random and srandom!! */ @@ -51,6 +56,30 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #define srandom srand #endif +#ifdef NO_COROSYNC +#define CS_OK 1 +typedef uint64_t cmap_handle_t; +#else +#include +#endif + +#ifndef NO_DLM +#include +#include +#else +#define LKF_NOQUEUE 0x00000001 +#define LKM_PWMODE 4 +#define EUNLOCK 0x10002 + +typedef void *dlm_lshandle_t; + +struct dlm_lksb { + int sb_status; + uint32_t sb_lkid; + char sb_flags; + char *sb_lvbptr; +}; +#endif #include /*#include */ @@ -113,55 +142,79 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); * and there is no standard conversion function so... */ /* And dietlibc doesn't think byteswap is ok, so.. */ /* #include */ -#define bswap_16(x) (((x) & 0x00ffU) << 8 | \ - ((x) & 0xff00U) >> 8) -#define bswap_32(x) (((x) & 0x000000ffU) << 24 | \ - ((x) & 0xff000000U) >> 24 | \ - ((x) & 0x0000ff00U) << 8 | \ - ((x) & 0x00ff0000U) >> 8) -#define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \ - ((x) & 0xff00000000000000ULL) >> 56 | \ - ((x) & 0x000000000000ff00ULL) << 40 | \ - ((x) & 0x00ff000000000000ULL) >> 40 | \ - ((x) & 0x0000000000ff0000ULL) << 24 | \ - ((x) & 0x0000ff0000000000ULL) >> 24 | \ - ((x) & 0x00000000ff000000ULL) << 8 | \ - ((x) & 0x000000ff00000000ULL) >> 8) +#define __mdadm_bswap_16(x) (((x) & 0x00ffU) << 8 | \ + ((x) & 0xff00U) >> 8) +#define __mdadm_bswap_32(x) (((x) & 0x000000ffU) << 24 | \ + ((x) & 0xff000000U) >> 24 | \ + ((x) & 0x0000ff00U) << 8 | \ + ((x) & 0x00ff0000U) >> 8) +#define __mdadm_bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \ + ((x) & 0xff00000000000000ULL) >> 56 | \ + ((x) & 0x000000000000ff00ULL) << 40 | \ + ((x) & 0x00ff000000000000ULL) >> 40 | \ + ((x) & 0x0000000000ff0000ULL) << 24 | \ + ((x) & 0x0000ff0000000000ULL) >> 24 | \ + ((x) & 0x00000000ff000000ULL) << 8 | \ + ((x) & 0x000000ff00000000ULL) >> 8) #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_be16(_x) bswap_16(_x) -#define __cpu_to_be32(_x) bswap_32(_x) -#define __cpu_to_be64(_x) bswap_64(_x) -#define __be16_to_cpu(_x) bswap_16(_x) -#define __be32_to_cpu(_x) bswap_32(_x) -#define __be64_to_cpu(_x) bswap_64(_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) __mdadm_bswap_16(_x) +#define __cpu_to_be32(_x) __mdadm_bswap_32(_x) +#define __cpu_to_be64(_x) __mdadm_bswap_64(_x) +#define __be16_to_cpu(_x) __mdadm_bswap_16(_x) +#define __be32_to_cpu(_x) __mdadm_bswap_32(_x) +#define __be64_to_cpu(_x) __mdadm_bswap_64(_x) #elif BYTE_ORDER == BIG_ENDIAN -#define __cpu_to_le16(_x) bswap_16(_x) -#define __cpu_to_le32(_x) bswap_32(_x) -#define __cpu_to_le64(_x) bswap_64(_x) -#define __le16_to_cpu(_x) bswap_16(_x) -#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_le16(_x) __mdadm_bswap_16(_x) +#define __cpu_to_le32(_x) __mdadm_bswap_32(_x) +#define __cpu_to_le64(_x) __mdadm_bswap_64(_x) +#define __le16_to_cpu(_x) __mdadm_bswap_16(_x) +#define __le32_to_cpu(_x) __mdadm_bswap_32(_x) +#define __le64_to_cpu(_x) __mdadm_bswap_64(_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__ */ +/* + * Check at compile time that something is of a particular type. + * Always evaluates to 1 so you may use it easily in comparisons. +*/ + +#define typecheck(type,x) \ +({ type __dummy; \ + typeof(x) __dummy2; \ + (void)(&__dummy == &__dummy2); \ + 1; \ +}) + +/* + * These inlines deal with timer wrapping correctly. + * + * time_after(a,b) returns true if the time a is after time b. +*/ + +#define time_after(a,b) \ + (typecheck(unsigned int, a) && \ + typecheck(unsigned int, b) && \ + ((int)((b) - (a)) < 0)) + +#define time_before(a,b) time_after(b,a) /* * min()/max()/clamp() macros that also do @@ -180,6 +233,21 @@ 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])) + +extern const char Name[]; + +struct md_bb_entry { + unsigned long long sector; + int length; +}; + +struct md_bb { + int supported; + int count; + struct md_bb_entry *entries; +}; + /* general information that might be extracted from a superblock */ struct mdinfo { mdu_array_info_t array; @@ -208,6 +276,9 @@ struct mdinfo { * for native metadata it is * reshape_active field mirror */ + int journal_device_required; + int journal_clean; + /* 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. @@ -233,13 +304,15 @@ 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[32]; struct mdinfo *devs; struct mdinfo *next; /* Device info for mdmon: */ int recovery_fd; int state_fd; + int bb_fd; + int ubb_fd; #define DS_FAULTY 1 #define DS_INSYNC 2 #define DS_WRITE_MOSTLY 4 @@ -249,6 +322,10 @@ struct mdinfo { #define DS_UNBLOCK 2048 int prev_state, curr_state, next_state; + /* info read from sysfs */ + char sysfs_array_state[20]; + + struct md_bb bb; }; struct createinfo { @@ -258,11 +335,10 @@ struct createinfo { int mode; int symlinks; int names; + int bblist; struct supertype *supertype; }; -#define Name "mdadm" - enum mode { ASSEMBLE=1, BUILD, @@ -311,6 +387,8 @@ enum special_options { Brief, ManageOpt, Add, + AddSpare, + AddJournal, Remove, Fail, Replace, @@ -320,6 +398,8 @@ enum special_options { ConfigFile, ChunkSize, WriteMostly, + FailFast, + NoFailFast, Layout, Auto, Force, @@ -341,6 +421,11 @@ enum special_options { ExamineBB, Dump, Restore, + Action, + Nodes, + ClusterName, + ClusterConfirm, + WriteJournal, }; enum prefix_standard { @@ -348,6 +433,12 @@ enum prefix_standard { IEC }; +enum bitmap_update { + NoUpdate, + NameUpdate, + NodeNumUpdate, +}; + /* structures read from config file */ /* List of mddevice names and identifiers * Identifiers can be: @@ -414,11 +505,15 @@ struct context { int freeze_reshape; char *backup_file; int invalid_backup; + char *action; + int nodes; + char *homecluster; }; struct shape { int raiddisks; int sparedisks; + int journaldisks; int level; int layout; char *layout_str; @@ -438,6 +533,7 @@ struct mddev_dev { * Not set for names read from .config */ char writemostly; /* 1 for 'set writemostly', 2 for 'clear writemostly' */ + char failfast; /* Ditto but for 'failfast' flag */ int used; /* set when used */ long long data_offset; struct mddev_dev *next; @@ -448,9 +544,7 @@ typedef struct mapping { int num; } mapping_t; - struct mdstat_ent { - char *dev; char devnm[32]; int active; char *level; @@ -463,11 +557,12 @@ 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); @@ -488,11 +583,11 @@ extern int map_update(struct map_ent **mpp, char *devnm, char *metadata, 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_devnm(struct map_ent **map, char *devnm); +extern void map_free(struct map_ent *map); 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, char *devnm); -extern void map_free(struct map_ent *map); extern void map_add(struct map_ent **melp, char *devnm, char *metadata, int uuid[4], char *path); extern int map_lock(struct map_ent **melp); @@ -518,6 +613,7 @@ enum sysfs_read_flags { GET_SIZE = (1 << 22), GET_STATE = (1 << 23), GET_ERROR = (1 << 24), + GET_ARRAY_STATE = (1 << 25), }; /* If fd >= 0, get the array it is open on, @@ -525,6 +621,7 @@ enum sysfs_read_flags { */ extern int sysfs_open(char *devnm, char *devname, char *attr); extern void sysfs_init(struct mdinfo *mdi, int fd, char *devnm); +extern void sysfs_init_dev(struct mdinfo *mdi, unsigned long devid); extern void sysfs_free(struct mdinfo *sra); extern struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options); extern int sysfs_attr_match(const char *attr, const char *str); @@ -541,6 +638,9 @@ extern int sysfs_get_fd(struct mdinfo *sra, struct mdinfo *dev, 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); @@ -552,7 +652,8 @@ 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(char *devnm, long rdev); extern int sysfs_freeze_array(struct mdinfo *sra); -extern int load_sys(char *path, char *buf); +extern int sysfs_wait(int fd, int *msec); +extern int load_sys(char *path, char *buf, int len); extern int reshape_prepare_fdlist(char *devname, struct mdinfo *sra, int raid_disks, @@ -570,9 +671,12 @@ 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, @@ -605,7 +709,6 @@ static inline char *map_dev(int major, int minor, int create) struct active_array; struct metadata_update; - /* 'struct reshape' records the intermediate states of * a general reshape. * The starting geometry is converted to the 'before' geometry @@ -736,9 +839,12 @@ 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 + * failfast - set the FailFast1 bit in the superblock + * nofailfast - clear the FailFast1 bit * 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. + * no-bbl - remove any bad-block-log is it is empty. + * force-no-bbl - remove any bad-block-log even if empty. * revert-reshape - If a reshape is in progress, modify metadata so * it will resume going in the opposite direction. */ @@ -776,23 +882,64 @@ 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); + /* 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. + * 0: Success + * -Exxxx: On error + */ int (*add_internal_bitmap)(struct supertype *st, int *chunkp, int delay, int write_behind, unsigned long long size, int may_change, int major); - void (*locate_bitmap)(struct supertype *st, int fd); - int (*write_bitmap)(struct supertype *st, int fd); + /* Seek 'fd' to start of write-intent-bitmap. Must be an + * md-native format bitmap + */ + int (*locate_bitmap)(struct supertype *st, int fd, int node_num); + /* if add_internal_bitmap succeeded for existing array, this + * writes it out. + */ + int (*write_bitmap)(struct supertype *st, int fd, enum bitmap_update update); + /* 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 @@ -802,7 +949,7 @@ extern struct superswitch { * 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 - * types, but array is not acceptable for some reason + * 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, @@ -812,6 +959,9 @@ extern struct superswitch { 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 */ @@ -850,7 +1000,7 @@ 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'. @@ -868,7 +1018,10 @@ extern struct superswitch { void (*sync_metadata)(struct supertype *st); void (*process_update)(struct supertype *st, struct metadata_update *update); - void (*prepare_update)(struct supertype *st, + /* Prepare updates allocates extra memory that might be + * needed. If the update cannot be understood, return 0. + */ + int (*prepare_update)(struct supertype *st, struct metadata_update *update); /* activate_spare will check if the array is degraded and, if it @@ -899,6 +1052,13 @@ extern struct superswitch { /* for external backup area */ int (*recover_backup)(struct supertype *st, struct mdinfo *info); + /* validate container after assemble */ + int (*validate_container)(struct mdinfo *info); + + /* records new bad block in metadata */ + int (*record_bad_block)(struct active_array *a, int n, + unsigned long long sector, int length); + int swapuuid; /* true if uuid is bigending rather than hostendian */ int external; const char *name; /* canonical metadata name */ @@ -944,6 +1104,7 @@ struct supertype { 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 @@ -960,6 +1121,8 @@ struct supertype { */ int devcnt; int retry_soon; + int nodes; + char *cluster_name; struct mdinfo *devs; @@ -973,6 +1136,7 @@ static inline struct supertype *guess_super(int fd) { } extern struct supertype *dup_super(struct supertype *st); extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); +extern int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep); extern int must_be_container(int fd); extern int dev_size_from_id(dev_t id, unsigned long long *size); void wait_for(char *dev, int fd); @@ -1114,10 +1278,10 @@ 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, - int will_retry); +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); @@ -1133,13 +1297,13 @@ 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, - int freeze_reshape); + int forked, 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); @@ -1177,11 +1341,12 @@ 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 SetAction(char *dev, char *action); -extern int Incremental(char *devname, struct context *c, +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, @@ -1191,7 +1356,14 @@ extern int CreateBitmap(char *filename, int force, char uuid[16], 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); + +/* calculate the size of the bitmap given the array size and bitmap chunksize */ +static inline unsigned long long +bitmap_bits(unsigned long long array_size, unsigned long chunksize) +{ + return (array_size * 512 + chunksize - 1) / chunksize; +} + 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, @@ -1205,6 +1377,7 @@ 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 parse_cluster_confirm_arg(char *inp, char **devname, int *slot); extern int check_ext2(int fd, char *name); extern int check_reiser(int fd, char *name); extern int check_raid(int fd, char *name); @@ -1213,8 +1386,10 @@ extern int check_partitions(int fd, char *dname, unsigned long long size); extern int get_mdp_major(void); +extern int get_maj_min(char *dev, int *major, int *minor); extern int dev_open(char *dev, int flags); 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); @@ -1233,11 +1408,13 @@ extern char *conf_get_mailaddr(void); extern char *conf_get_mailfrom(void); extern char *conf_get_program(void); extern char *conf_get_homehost(int *require_homehostp); +extern char *conf_get_homecluster(void); 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); @@ -1273,7 +1450,11 @@ 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, struct context *c, - char *chosen_name); + 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, @@ -1294,8 +1475,9 @@ extern void print_r10_layout(int layout); extern char *find_free_devnm(int use_partitions); extern void put_md_name(char *name); -extern char *devid2devnm(int devid); -extern int devnm2devid(char *devnm); +extern char *devid2kname(int devid); +extern char *devid2devnm(dev_t devid); +extern dev_t devnm2devid(char *devnm); extern char *get_md_name(char *devnm); extern char DefaultConfFile[]; @@ -1320,6 +1502,7 @@ extern int mdmon_running(char *devnm); extern int mdmon_pid(char *devnm); extern int check_env(char *name); extern __u32 random32(void); +extern void random_uuid(__u8 *buf); extern int start_mdmon(char *devnm); extern int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape, @@ -1330,10 +1513,52 @@ void abort_reshape(struct mdinfo *sra); void *super1_make_v0(struct supertype *st, struct mdinfo *info, mdp_super_t *sb0); -extern void fmt_devname(char *name, int num); +extern char *stat2kname(struct stat *st); +extern char *fd2kname(int fd); extern char *stat2devnm(struct stat *st); extern char *fd2devnm(int fd); +extern int in_initrd(void); + +struct cmap_hooks { + void *cmap_handle; /* corosync lib related */ + + int (*initialize)(cmap_handle_t *handle); + int (*get_string)(cmap_handle_t handle, + const char *string, + char **name); + int (*finalize)(cmap_handle_t handle); +}; + +extern void set_cmap_hooks(void); +extern void set_hooks(void); + +struct dlm_hooks { + void *dlm_handle; /* dlm lib related */ + + dlm_lshandle_t (*create_lockspace)(const char *name, + unsigned int mode); + int (*release_lockspace)(const char *name, dlm_lshandle_t ls, + int force); + int (*ls_lock)(dlm_lshandle_t lockspace, uint32_t mode, + struct dlm_lksb *lksb, uint32_t flags, + const void *name, unsigned int namelen, + uint32_t parent, void (*astaddr) (void *astarg), + void *astarg, void (*bastaddr) (void *astarg), + void *range); + int (*ls_unlock)(dlm_lshandle_t lockspace, uint32_t lkid, + uint32_t flags, struct dlm_lksb *lksb, + void *astarg); + int (*ls_get_fd)(dlm_lshandle_t ls); + int (*dispatch)(int fd); +}; + +extern int get_cluster_name(char **name); +extern int dlm_funs_ready(void); +extern int cluster_get_dlmlock(int *lockid); +extern int cluster_release_dlmlock(int lockid); +extern void set_dlm_hooks(void); + #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)) \ @@ -1342,7 +1567,7 @@ extern char *fd2devnm(int fd); 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 @@ -1360,9 +1585,13 @@ static inline char *to_subarray(struct mdstat_ent *ent, char *container) #ifdef DEBUG #define dprintf(fmt, arg...) \ + fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##arg) +#define dprintf_cont(fmt, arg...) \ fprintf(stderr, fmt, ##arg) #else #define dprintf(fmt, arg...) \ + ({ if (0) fprintf(stderr, "%s: %s: " fmt, Name, __func__, ##arg); 0; }) +#define dprintf_cont(fmt, arg...) \ ({ if (0) fprintf(stderr, fmt, ##arg); 0; }) #endif #include @@ -1377,7 +1606,11 @@ static inline int xasprintf(char **strp, const char *fmt, ...) { return ret; } -#define pr_err(fmt ...) fprintf(stderr, Name ": " fmt) +#ifdef DEBUG +#define pr_err(fmt, args...) fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##args) +#else +#define pr_err(fmt, args...) fprintf(stderr, "%s: "fmt, Name, ##args) +#endif #define cont_err(fmt ...) fprintf(stderr, " " fmt) void *xmalloc(size_t len); @@ -1393,6 +1626,8 @@ char *xstrdup(const char *str); #define LEVEL_CONTAINER (-100) #define LEVEL_UNSUPPORTED (-200) +/* the kernel does know about this one ... */ +#define LEVEL_NONE (-1000000) /* faulty stuff */ @@ -1413,7 +1648,6 @@ char *xstrdup(const char *str); #define ModeMask 0x1f #define ModeShift 5 - #ifdef __TINYC__ #undef minor #undef major @@ -1451,7 +1685,6 @@ char *xstrdup(const char *str); #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).