#endif
#endif /* __KLIBC__ */
+/*
+ * Partially stolen from include/linux/unaligned/packed_struct.h
+ */
+struct __una_u16 { __u16 x; } __attribute__ ((packed));
+struct __una_u32 { __u32 x; } __attribute__ ((packed));
+
+static inline __u16 __get_unaligned16(const void *p)
+{
+ const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+ return ptr->x;
+}
+
+static inline __u32 __get_unaligned32(const void *p)
+{
+ const struct __una_u32 *ptr = (const struct __una_u32 *)p;
+ return ptr->x;
+}
+
+static inline void __put_unaligned16(__u16 val, void *p)
+{
+ struct __una_u16 *ptr = (struct __una_u16 *)p;
+ ptr->x = val;
+}
+
+static inline void __put_unaligned32(__u32 val, void *p)
+{
+ struct __una_u32 *ptr = (struct __una_u32 *)p;
+ ptr->x = val;
+}
+
/*
* Check at compile time that something is of a particular type.
* Always evaluates to 1 so you may use it easily in comparisons.
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;
int journal_device_required;
int journal_clean;
+ enum {
+ CONSISTENCY_POLICY_UNKNOWN,
+ CONSISTENCY_POLICY_NONE,
+ CONSISTENCY_POLICY_RESYNC,
+ CONSISTENCY_POLICY_BITMAP,
+ CONSISTENCY_POLICY_JOURNAL,
+ CONSISTENCY_POLICY_PPL,
+ } consistency_policy;
+
/* 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.
#define MaxSector (~0ULL) /* resync/recovery complete position */
};
long bitmap_offset; /* 0 == none, 1 == a file */
+ unsigned int ppl_size;
+ int ppl_offset;
+ unsigned long long ppl_sector;
unsigned long safe_mode_delay; /* ms delay to mark clean */
int new_level, delta_disks, new_layout, new_chunk;
int errors;
/* 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
int prev_state, curr_state, next_state;
/* info read from sysfs */
- char sysfs_array_state[20];
+ enum {
+ ARRAY_CLEAR,
+ ARRAY_INACTIVE,
+ ARRAY_SUSPENDED,
+ ARRAY_READONLY,
+ ARRAY_READ_AUTO,
+ ARRAY_CLEAN,
+ ARRAY_ACTIVE,
+ ARRAY_WRITE_PENDING,
+ ARRAY_ACTIVE_IDLE,
+ ARRAY_UNKNOWN_STATE,
+ } array_state;
+ struct md_bb bb;
};
struct createinfo {
struct supertype *supertype;
};
+struct spare_criteria {
+ unsigned long long min_size;
+ unsigned int sector_size;
+};
+
enum mode {
ASSEMBLE=1,
BUILD,
ConfigFile,
ChunkSize,
WriteMostly,
+ FailFast,
+ NoFailFast,
Layout,
Auto,
Force,
ClusterName,
ClusterConfirm,
WriteJournal,
+ ConsistencyPolicy,
};
enum prefix_standard {
NodeNumUpdate,
};
+enum flag_mode {
+ FlagDefault, FlagSet, FlagClear,
+};
+
/* structures read from config file */
/* List of mddevice names and identifiers
* Identifiers can be:
int assume_clean;
int write_behind;
unsigned long long size;
+ int consistency_policy;
};
/* List of device names - wildcards expanded */
* 'A' for re_add.
* Not set for names read from .config
*/
- char writemostly; /* 1 for 'set writemostly', 2 for 'clear writemostly' */
+ enum flag_mode writemostly;
+ enum flag_mode failfast;
int used; /* set when used */
long long data_offset;
struct mddev_dev *next;
char devnm[32];
int active;
char *level;
- char *pattern; /* U or up, _ for down */
+ char *pattern; /* U for up, _ for down */
int percent; /* -1 if no resync */
int resync; /* 3 if check, 2 if reshape, 1 if resync, 0 if recovery */
int devcnt;
GET_MISMATCH = (1 << 5),
GET_VERSION = (1 << 6),
GET_DISKS = (1 << 7),
- GET_DEGRADED = (1 << 8),
GET_SAFEMODE = (1 << 9),
GET_BITMAP_LOCATION = (1 << 10),
GET_STATE = (1 << 23),
GET_ERROR = (1 << 24),
GET_ARRAY_STATE = (1 << 25),
+ GET_CONSISTENCY_POLICY = (1 << 26),
+ GET_DEVS_ALL = (1 << 27),
};
/* If fd >= 0, get the array it is open on,
* else use devnm.
*/
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 int sysfs_init(struct mdinfo *mdi, int fd, char *devnm);
+extern void sysfs_init_dev(struct mdinfo *mdi, dev_t 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);
extern int sysfs_freeze_array(struct mdinfo *sra);
extern int sysfs_wait(int fd, int *msec);
extern int load_sys(char *path, char *buf, int len);
+extern int zero_disk_range(int fd, unsigned long long sector, size_t count);
extern int reshape_prepare_fdlist(char *devname,
struct mdinfo *sra,
int raid_disks,
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 mapping_t consistency_policies[], sysfs_array_states[];
extern char *map_dev_preferred(int major, int minor, int create,
char *prefer);
unsigned long long new_size; /* New size of array in sectors */
};
-/* A superswitch provides entry point the a metadata handler.
+/* A superswitch provides entry point to a metadata handler.
*
* The superswitch primarily operates on some "metadata" that
* is accessed via the 'supertype'.
* 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 any bad-block-log is it is empty.
* metadata.
*/
int (*init_super)(struct supertype *st, mdu_array_info_t *info,
- unsigned long long size, char *name,
+ struct shape *s, char *name,
char *homehost, int *uuid,
unsigned long long data_offset);
*/
__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
+ /*
+ * Return spare criteria for array:
+ * - minimum disk size can be used in array;
+ * - sector size can be used in array.
+ * Return values: 0 - for success and -EINVAL on error.
*/
- unsigned long long (*min_acceptable_spare_size)(struct supertype *st);
+ int (*get_spare_criteria)(struct supertype *st,
+ struct spare_criteria *sc);
/* 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
int *chunk, unsigned long long size,
unsigned long long data_offset,
char *subdev, unsigned long long *freesize,
- int verbose);
+ int consistency_policy, int verbose);
/* Return a linked list of 'mdinfo' structures for all arrays
* in the container. For non-containers, it is like
/* validate container after assemble */
int (*validate_container)(struct mdinfo *info);
+ /* write initial empty PPL on device */
+ int (*write_init_ppl)(struct supertype *st, struct mdinfo *info, int fd);
+
+ /* validate ppl before assemble */
+ int (*validate_ppl)(struct supertype *st, struct mdinfo *info,
+ struct mdinfo *disk);
+
+ /* records new bad block in metadata */
+ int (*record_bad_block)(struct active_array *a, int n,
+ unsigned long long sector, int length);
+
+ /* clears bad block from metadata */
+ int (*clear_bad_block)(struct active_array *a, int n,
+ unsigned long long sector, int length);
+
+ /* get list of bad blocks from metadata */
+ struct md_bb *(*get_bad_blocks)(struct active_array *a, int n);
+
int swapuuid; /* true if uuid is bigending rather than hostendian */
int external;
const char *name; /* canonical metadata name */
}
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);
+extern int dev_sector_size_from_id(dev_t id, unsigned int *size);
void wait_for(char *dev, int fd);
/*
extern void policy_add(char *type, ...);
extern void policy_free(void);
-extern struct dev_policy *path_policy(char *path, char *type);
+extern struct dev_policy *path_policy(char **paths, char *type);
extern struct dev_policy *disk_policy(struct mdinfo *disk);
extern struct dev_policy *devid_policy(int devid);
extern void dev_policy_free(struct dev_policy *p);
extern int Grow_continue(int mdfd, struct supertype *st,
struct mdinfo *info, char *backup_file,
int forked, int freeze_reshape);
+extern int Grow_consistency_policy(char *devname, int fd,
+ struct context *c, struct shape *s);
extern int restore_backup(struct supertype *st,
struct mdinfo *content,
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 WaitClean(char *dev, int verbose);
extern int SetAction(char *dev, char *action);
extern int Incremental(struct mddev_dev *devlist, struct context *c,
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,
struct supertype *st, int only);
-extern int md_get_version(int fd);
+int md_array_valid(int fd);
+int md_array_active(int fd);
+int md_array_is_active(struct mdinfo *info);
+int md_get_array_info(int fd, struct mdu_array_info_s *array);
+int md_set_array_info(int fd, struct mdu_array_info_s *array);
+int md_get_disk_info(int fd, struct mdu_disk_info_s *disk);
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]);
+extern int is_near_layout_10(int layout);
extern int parse_layout_10(char *layout);
extern int parse_layout_faulty(char *layout);
extern long parse_num(char *num);
extern int check_partitions(int fd, char *dname,
unsigned long long freesize,
unsigned long long size);
+extern int fstat_is_blkdev(int fd, char *devname, dev_t *rdev);
+extern int stat_is_blkdev(char *devname, dev_t *rdev);
extern int get_mdp_major(void);
extern int get_maj_min(char *dev, int *major, int *minor);
struct mdinfo *info,
char *devname,
int verbose, int *rvp);
-extern int experimental(void);
extern void free_line(char *line);
extern int match_oneof(char *devices, char *devname);
extern unsigned long calc_csum(void *super, int bytes);
extern int enough(int level, int raid_disks, int layout, int clean,
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);
#define INCR_ALREADY 4
#define INCR_YES 8
extern struct mdinfo *container_choose_spares(struct supertype *st,
- unsigned long long min_size,
+ struct spare_criteria *criteria,
struct domainlist *domlist,
char *spare_group,
const char *metadata, int get_one);
struct mdinfo *sra, struct mdinfo *info);
extern int remove_disk(int mdfd, struct supertype *st,
struct mdinfo *sra, struct mdinfo *info);
+extern int hot_remove_disk(int mdfd, unsigned long dev, int force);
+extern int sys_hot_remove_disk(int statefd, int force);
extern int set_array_info(int mdfd, struct supertype *st, struct mdinfo *info);
unsigned long long min_recovery_start(struct mdinfo *array);
extern char *find_free_devnm(int use_partitions);
extern void put_md_name(char *name);
-extern char *devid2kname(int devid);
+extern char *devid2kname(dev_t devid);
extern char *devid2devnm(dev_t devid);
extern dev_t devnm2devid(char *devnm);
extern char *get_md_name(char *devnm);
extern char DefaultConfFile[];
extern int create_mddev(char *dev, char *name, int autof, int trustworthy,
- char *chosen);
+ char *chosen, int block_udev);
/* values for 'trustworthy' */
#define LOCAL 1
#define LOCAL_ANY 10
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,
extern char *fd2kname(int fd);
extern char *stat2devnm(struct stat *st);
extern char *fd2devnm(int fd);
+extern void udev_block(char *devnm);
+extern void udev_unblock(void);
extern int in_initrd(void);
dlm_lshandle_t (*create_lockspace)(const char *name,
unsigned int mode);
+ dlm_lshandle_t (*open_lockspace)(const char *name);
int (*release_lockspace)(const char *name, dlm_lshandle_t ls,
int force);
int (*ls_lock)(dlm_lshandle_t lockspace, uint32_t mode,
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_unlock_wait)(dlm_lshandle_t lockspace, uint32_t lkid,
+ uint32_t flags, struct dlm_lksb *lksb);
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 int cluster_get_dlmlock(void);
+extern int cluster_release_dlmlock(void);
extern void set_dlm_hooks(void);
#define _ROUND_UP(val, base) (((val) + (base) - 1) & ~(base - 1))
projects / thirdparty / mdadm.git / blobdiff