/* 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"
#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
* 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
* 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"
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.
*/
#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
* 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 */
};
- unsigned long bitmap_offset; /* 0 == none, 1 == a file */
+ 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;
GROW,
INCREMENTAL,
AUTODETECT,
+ mode_count
};
extern char short_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[];
FreezeReshape,
Continue,
OffRootOpt,
+ Prefer,
+ KillOpt,
+ DataOffset,
+};
+
+enum prefix_standard {
+ JEDEC,
+ IEC
};
/* structures read from config file */
};
};
+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 */
+ long long data_offset;
struct mddev_dev *next;
};
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 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.
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
*/
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.
*/
int (*load_super)(struct supertype *st, int fd, char *devname);
int (*load_container)(struct supertype *st, int fd, char *devname);
struct supertype * (*match_metadata_desc)(char *arg);
- __u64 (*avail_size)(struct supertype *st, __u64 size);
+ __u64 (*avail_size)(struct supertype *st, __u64 size,
+ unsigned long long data_offset);
unsigned long long (*min_acceptable_spare_size)(struct supertype *st);
int (*add_internal_bitmap)(struct supertype *st, int *chunkp,
int delay, int write_behind,
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);
* 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,
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);
/*
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_runstop(char *devname, int fd, int runstop, 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,
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, int freeze_reshape);
-
-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 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, int freeze_reshape);
+extern int Incremental(char *devname, struct context *c,
+ struct supertype *st);
extern void RebuildMap(void);
extern int IncrementalScan(int verbose);
extern int IncrementalRemove(char *devname, char *path, int verbose);
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);
extern int open_dev_excl(int devnum);
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 int parse_auto(char *str, char *msg, int config);
extern struct mddev_ident *conf_get_ident(char *dev);
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 conf_name_is_free(char *name);
extern int conf_verify_devnames(struct mddev_ident *array_list);
extern int devname_matches(char *name, char *match);
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 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, int freeze_reshape);
+ struct mdinfo *content,
+ struct context *c,
+ char *chosen_name);
extern struct mdinfo *container_choose_spares(struct supertype *st,
unsigned long long min_size,
struct domainlist *domlist,
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)
return (-1-d) << MdpMinorShift;
}
-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)
{
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)
#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
+
+extern int __offroot;
projects / thirdparty / mdadm.git / blobdiff