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;
/* 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
/* info read from sysfs */
char sysfs_array_state[20];
+
+ struct md_bb bb;
};
struct createinfo {
ConfigFile,
ChunkSize,
WriteMostly,
+ FailFast,
+ NoFailFast,
Layout,
Auto,
Force,
NodeNumUpdate,
};
+enum flag_mode {
+ FlagDefault, FlagSet, FlagClear,
+};
+
/* structures read from config file */
/* List of mddevice names and identifiers
* Identifiers can be:
* '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;
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.
/* 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);
+
+ /* 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);
void wait_for(char *dev, int fd);
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);