int reshape_active;
unsigned long long reshape_progress;
unsigned long long resync_start;
+ unsigned long safe_mode_delay; /* ms delay to mark clean */
int new_level, delta_disks, new_layout, new_chunk;
int errors;
int cache_size; /* size of raid456 stripe cache*/
#define DS_SPARE 8
#define DS_BLOCKED 16
#define DS_REMOVE 1024
+ #define DS_UNBLOCK 2048
int prev_state, curr_state, next_state;
};
AutoHomeHost,
Symlinks,
AutoDetect,
+ Waitclean,
};
/* structures read from config file */
char *bitmap_file;
int bitmap_fd;
+ char *container; /* /dev/whatever name of container. You
+ * would expect this to be the 'devname'
+ * of some other entry.
+ */
+ char *member; /* subarray within a container */
+
struct mddev_ident_s *next;
} *mddev_ident_t;
#define GET_MISMATCH 32
#define GET_VERSION 64
#define GET_DISKS 128
+#define GET_DEGRADED 256
+#define GET_SAFEMODE 512
#define GET_DEVS 1024 /* gets role, major, minor */
#define GET_OFFSET 2048
* else use devnum. >=0 -> major9. <0.....
*/
extern int sysfs_open(int devnum, char *devname, char *attr);
+extern void sysfs_init(struct mdinfo *mdi, int fd, int devnum);
extern void sysfs_free(struct mdinfo *sra);
extern struct mdinfo *sysfs_read(int fd, int devnum, 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_get_ll(struct mdinfo *sra, struct mdinfo *dev,
char *name, unsigned long long *val);
-extern int sysfs_set_array(struct mdinfo *sra,
- struct mdinfo *info);
+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);
-extern int sysfs_disk_to_sg(int fd);
extern int sysfs_disk_to_scsi_id(int fd, __u32 *id);
extern int sysfs_unique_holder(int devnum, long rdev);
+extern int load_sys(char *path, char *buf);
extern int save_stripes(int *source, unsigned long long *offsets,
void (*getinfo_super)(struct supertype *st, struct mdinfo *info);
/* Check if the given metadata is flagged as belonging to "this"
- * host. For arrays that don't determine a minor-number, this
- * can always be true (??)
+ * host. 0 for 'no', 1 for 'yes', -1 for "Don't record homehost"
*/
int (*match_home)(struct supertype *st, char *homehost);
int (*validate_geometry)(struct supertype *st, int level, int layout,
int raiddisks,
int chunk, unsigned long long size,
- char *subdev, unsigned long long *freesize);
+ char *subdev, unsigned long long *freesize,
+ int verbose);
struct mdinfo *(*container_content)(struct supertype *st);
/* Tell the metadata handler the current state of the array.
* This covers whether it is known to be consistent (no pending writes)
- * when how far along a resync is known to have progressed
+ * and how far along a resync is known to have progressed
* (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
+ * 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'.
*/
- void (*set_array_state)(struct active_array *a, int consistent);
+ int (*set_array_state)(struct active_array *a, int consistent);
/* When the state of a device might have changed, we call set_disk to
* tell the metadata what the current state is.
void (*sync_metadata)(struct supertype *st);
void (*process_update)(struct supertype *st,
struct metadata_update *update);
+ void (*prepare_update)(struct supertype *st,
+ struct metadata_update *update);
/* activate_spare will check if the array is degraded and, if it
* is, try to find some spare space in the container.
extern struct superswitch super_imsm;
+struct metadata_update {
+ int len;
+ char *buf;
+ void *space; /* allocated space that monitor will use */
+ struct metadata_update *next;
+};
+
/* A supertype holds a particular collection of metadata.
* It identifies the metadata type by the superswitch, and the particular
* sub-version of that metadata type.
* metadata read in or created is stored in 'sb' and 'info'.
* There are also fields used by mdmon to track containers.
*
+ * A supertype may refer to:
+ * Just an array, possibly in a container
+ * A container, not identifying any particular array
+ * Info read from just one device, not yet fully describing the array/container.
+ *
+ *
* A supertype is created by:
* super_by_fd
* guess_super
char subarray[32]; /* name of array inside container */
void *sb;
void *info;
+ int loaded_container; /* Set if load_super found a container,
+ * not just one device */
+
+ struct metadata_update *updates;
+ struct metadata_update **update_tail;
/* extra stuff used by mdmon */
struct active_array *arrays;
extern int Kill(char *dev, int force, int quiet, int noexcl);
extern int Wait(char *dev);
+extern int WaitClean(char *dev);
extern int Incremental(char *devname, int verbose, int runstop,
struct supertype *st, char *homehost, int autof);
extern void free_line(char *line);
extern int match_oneof(char *devices, char *devname);
extern void uuid_from_super(int uuid[4], mdp_super_t *super);
+extern const int uuid_match_any[4];
extern int same_uuid(int a[4], int b[4], int swapuuid);
extern void copy_uuid(void *a, int b[4], int swapuuid);
+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);
extern void remove_partitions(int fd);
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 add_disk(int mdfd, struct supertype *st,
+ struct mdinfo *sra, struct mdinfo *info);
+extern int set_array_info(int mdfd, struct supertype *st, struct mdinfo *info);
extern char *human_size(long long bytes);
char *human_size_brief(long long bytes);
extern int mdmon_running(int devnum);
extern int signal_mdmon(int devnum);
+extern int env_no_mdmon(void);
+extern int start_mdmon(int devnum);
extern char *devnum2devname(int num);
+extern int devname2devnum(char *name);
+extern int stat2devnum(struct stat *st);
extern int fd2devnum(int fd);
static inline int dev2major(int d)
return (-1-d) << MdpMinorShift;
}
+static inline int ROUND_UP(int a, int base)
+{
+ return ((a+base-1)/base)*base;
+}
+
+static inline int is_subarray(char *vers)
+{
+ /* The version string for a 'subarray' (an array in a container)
+ * is
+ * /containername/componentname for normal read-write arrays
+ * -containername/componentname for read-only arrays.
+ * containername is e.g. md0, md_d1
+ * componentname is dependant on the metadata. e.g. '1' 'S1' ...
+ */
+ return (*vers == '/' || *vers == '-');
+}
+
+#ifdef DEBUG
+#define dprintf(fmt, arg...) \
+ fprintf(stderr, fmt, ##arg)
+#else
+#define dprintf(fmt, arg...) \
+ ({ if (0) fprintf(stderr, fmt, ##arg); 0; })
+#endif
+
#define LEVEL_MULTIPATH (-4)
#define LEVEL_LINEAR (-1)
#define LEVEL_FAULTY (-5)
projects / thirdparty / mdadm.git / blobdiff