diff options
Diffstat (limited to 'mdadm.h')
| -rw-r--r-- | mdadm.h | 137 |
1 files changed, 122 insertions, 15 deletions
@@ -33,8 +33,10 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); # endif #endif +#include <assert.h> #include <sys/types.h> #include <sys/stat.h> +#include <stdarg.h> #include <stdint.h> #include <stdlib.h> #include <time.h> @@ -46,6 +48,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #include <string.h> #include <syslog.h> #include <stdbool.h> +#include <signal.h> /* Newer glibc requires sys/sysmacros.h directly for makedev() */ #include <sys/sysmacros.h> #ifdef __dietlibc__ @@ -393,7 +396,6 @@ struct createinfo { int gid; int autof; int mode; - int symlinks; int names; int bblist; struct supertype *supertype; @@ -418,6 +420,7 @@ enum mode { }; extern char short_options[]; +extern char short_monitor_options[]; extern char short_bitmap_options[]; extern char short_bitmap_auto_options[]; extern struct option long_options[]; @@ -440,7 +443,6 @@ enum special_options { BackupFile, HomeHost, AutoHomeHost, - Symlinks, AutoDetect, Waitclean, DetailPlatform, @@ -495,6 +497,51 @@ enum special_options { ConsistencyPolicy, }; +enum update_opt { + UOPT_NAME = 1, + UOPT_PPL, + UOPT_NO_PPL, + UOPT_BITMAP, + UOPT_NO_BITMAP, + UOPT_SUBARRAY_ONLY, + UOPT_SPARC22, + UOPT_SUPER_MINOR, + UOPT_SUMMARIES, + UOPT_RESYNC, + UOPT_UUID, + UOPT_HOMEHOST, + UOPT_HOME_CLUSTER, + UOPT_NODES, + UOPT_DEVICESIZE, + UOPT_BBL, + UOPT_NO_BBL, + UOPT_FORCE_NO_BBL, + UOPT_METADATA, + UOPT_REVERT_RESHAPE, + UOPT_LAYOUT_ORIGINAL, + UOPT_LAYOUT_ALTERNATE, + UOPT_LAYOUT_UNSPECIFIED, + UOPT_BYTEORDER, + UOPT_HELP, + UOPT_USER_ONLY, + /* + * Code specific options, cannot be set by the user + */ + UOPT_SPEC_FORCE_ONE, + UOPT_SPEC_FORCE_ARRAY, + UOPT_SPEC_ASSEMBLE, + UOPT_SPEC_LINEAR_GROW_NEW, + UOPT_SPEC_LINEAR_GROW_UPDATE, + UOPT_SPEC__RESHAPE_PROGRESS, + UOPT_SPEC_WRITEMOSTLY, + UOPT_SPEC_READWRITE, + UOPT_SPEC_FAILFAST, + UOPT_SPEC_NOFAILFAST, + UOPT_SPEC_REVERT_RESHAPE_NOBACKUP, + UOPT_UNDEFINED +}; +extern void fprint_update_options(FILE *outf, enum update_opt update_mode); + enum prefix_standard { JEDEC, IEC @@ -569,7 +616,7 @@ struct context { int export; int test; char *subarray; - char *update; + enum update_opt update; int scan; int SparcAdjust; int autof; @@ -595,6 +642,7 @@ struct shape { int assume_clean; int write_behind; unsigned long long size; + unsigned long long data_offset; int consistency_policy; }; @@ -769,12 +817,12 @@ extern int restore_stripes(int *dest, unsigned long long *offsets, #endif #define SYSLOG_FACILITY LOG_DAEMON - +extern char *map_num_s(mapping_t *map, int num); extern char *map_num(mapping_t *map, int num); extern int map_name(mapping_t *map, char *name); extern mapping_t r0layout[], r5layout[], r6layout[], pers[], modes[], faultylayout[]; -extern mapping_t consistency_policies[], sysfs_array_states[]; +extern mapping_t consistency_policies[], sysfs_array_states[], update_options[]; extern char *map_dev_preferred(int major, int minor, int create, char *prefer); @@ -796,6 +844,17 @@ static inline int is_fd_valid(int fd) } /** + * is_level456() - check whether given level is between inclusive 4 and 6. + * @level: level to check. + * + * Return: true if condition is met, false otherwise + */ +static inline bool is_level456(int level) +{ + return (level >= 4 && level <= 6); +} + +/** * close_fd() - verify, close and unset file descriptor. * @fd: pointer to file descriptor. * @@ -952,7 +1011,7 @@ extern struct superswitch { * it will resume going in the opposite direction. */ int (*update_super)(struct supertype *st, struct mdinfo *info, - char *update, + enum update_opt update, char *devname, int verbose, int uuid_set, char *homehost); @@ -1078,9 +1137,15 @@ extern struct superswitch { /* Permit subarray's to be deleted from inactive containers */ int (*kill_subarray)(struct supertype *st, char *subarray_id); /* optional */ - /* Permit subarray's to be modified */ + /** + * update_subarray() - Permit subarray to be modified. + * @st: Supertype. + * @subarray: Subarray name. + * @update: Update option. + * @ident: Optional identifiers. + */ int (*update_subarray)(struct supertype *st, char *subarray, - char *update, struct mddev_ident *ident); /* optional */ + enum update_opt update, struct mddev_ident *ident); /* Check if reshape is supported for this external format. * st is obtained from super_by_fd() where st->subarray[0] is * initialized to indicate if reshape is being performed at the @@ -1413,14 +1478,13 @@ 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); + enum update_opt 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, struct context *c, struct shape *s); extern int Grow_reshape(char *devname, int fd, struct mddev_dev *devlist, - 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); @@ -1451,8 +1515,7 @@ extern int Create(struct supertype *st, char *mddev, char *name, int *uuid, int subdevs, struct mddev_dev *devlist, struct shape *s, - struct context *c, - unsigned long long data_offset); + struct context *c); extern int Detail(char *dev, struct context *c); extern int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path); @@ -1469,7 +1532,7 @@ extern int Monitor(struct mddev_dev *devlist, 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 Update_subarray(char *dev, char *subarray, enum update_opt update, struct mddev_ident *ident, int quiet); extern int Wait(char *dev); extern int WaitClean(char *dev, int verbose); extern int SetAction(char *dev, char *action); @@ -1511,6 +1574,7 @@ extern int get_linux_version(void); extern int mdadm_version(char *version); extern unsigned long long parse_size(char *size); extern int parse_uuid(char *str, int uuid[4]); +int default_layout(struct supertype *st, int level, int verbose); extern int is_near_layout_10(int layout); extern int parse_layout_10(char *layout); extern int parse_layout_faulty(char *layout); @@ -1528,6 +1592,7 @@ extern int stat_is_blkdev(char *devname, dev_t *rdev); extern bool is_dev_alive(char *path); extern int get_mdp_major(void); extern int get_maj_min(char *dev, int *major, int *minor); +extern bool is_bit_set(int *val, unsigned char index); extern int dev_open(char *dev, int flags); extern int open_dev(char *devnm); extern void reopen_mddev(int mdfd); @@ -1540,6 +1605,8 @@ extern void enable_fds(int devices); extern void manage_fork_fds(int close_all); extern int continue_via_systemd(char *devnm, char *service_name); +extern void ident_init(struct mddev_ident *ident); + extern int parse_auto(char *str, char *msg, int config); extern struct mddev_ident *conf_get_ident(char *dev); extern struct mddev_dev *conf_get_devs(void); @@ -1634,6 +1701,7 @@ extern int create_mddev(char *dev, char *name, int autof, int trustworthy, #define FOREIGN 2 #define METADATA 3 extern int open_mddev(char *dev, int report_errors); +extern int is_mddev(char *dev); extern int open_container(int fd); extern int metadata_container_matches(char *metadata, char *devnm); extern int metadata_subdev_matches(char *metadata, char *devnm); @@ -1660,6 +1728,7 @@ void *super1_make_v0(struct supertype *st, struct mdinfo *info, mdp_super_t *sb0 extern char *stat2kname(struct stat *st); extern char *fd2kname(int fd); extern char *stat2devnm(struct stat *st); +bool stat_is_md_dev(struct stat *st); extern char *fd2devnm(int fd); extern void udev_block(char *devnm); extern void udev_unblock(void); @@ -1705,6 +1774,10 @@ extern int cluster_get_dlmlock(void); extern int cluster_release_dlmlock(void); extern void set_dlm_hooks(void); +#define MSEC_TO_NSEC(msec) ((msec) * 1000000) +#define USEC_TO_NSEC(usec) ((usec) * 1000) +extern void sleep_for(unsigned int sec, long nsec, bool wake_after_interrupt); + #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)) \ @@ -1729,6 +1802,27 @@ static inline char *to_subarray(struct mdstat_ent *ent, char *container) return &ent->metadata_version[10+strlen(container)+1]; } +/** + * signal_s() - Wrapper for sigaction() with signal()-like interface. + * @sig: The signal to set the signal handler to. + * @handler: The signal handler. + * + * Return: previous handler or SIG_ERR on failure. + */ +static inline sighandler_t signal_s(int sig, sighandler_t handler) +{ + struct sigaction new_act; + struct sigaction old_act; + + new_act.sa_handler = handler; + new_act.sa_flags = 0; + + if (sigaction(sig, &new_act, &old_act) == 0) + return old_act.sa_handler; + + return SIG_ERR; +} + #ifdef DEBUG #define dprintf(fmt, arg...) \ fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##arg) @@ -1740,8 +1834,7 @@ static inline char *to_subarray(struct mdstat_ent *ent, char *container) #define dprintf_cont(fmt, arg...) \ ({ if (0) fprintf(stderr, fmt, ##arg); 0; }) #endif -#include <assert.h> -#include <stdarg.h> + static inline int xasprintf(char **strp, const char *fmt, ...) { va_list ap; int ret; @@ -1885,3 +1978,17 @@ enum r0layout { * This is true for native and DDF, IMSM allows 16. */ #define MD_NAME_MAX 32 + +/** + * is_container() - check if @level is &LEVEL_CONTAINER + * @level: level value + * + * return: + * 1 if level is equal to &LEVEL_CONTAINER, 0 otherwise. + */ +static inline int is_container(const int level) +{ + if (level == LEVEL_CONTAINER) + return 1; + return 0; +} |