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#ifdef DEBUG
#define dprintf(fmt, arg...) \
fprintf(stderr, fmt, ##arg)
#else
#define dprintf(fmt, arg...) \
({ if (0) fprintf(stderr, fmt, ##arg); 0; })
#endif
enum array_state { clear, inactive, suspended, readonly, read_auto,
clean, active, write_pending, active_idle, bad_word};
enum sync_action { idle, reshape, resync, recover, check, repair, bad_action };
struct active_array {
struct mdinfo info;
struct supertype *container;
struct active_array *next, *replaces;
int action_fd;
int resync_start_fd;
enum array_state prev_state, curr_state, next_state;
enum sync_action prev_action, curr_action, next_action;
int check_degraded; /* flag set by mon, read by manage */
int devnum;
unsigned long long resync_start;
};
/*
* Metadata updates are handled by the monitor thread,
* as it has exclusive access to the metadata.
* When the manager want to updates metadata, either
* for it's own reason (e.g. committing a spare) or
* on behalf of mdadm, it creates a metadata_update
* structure and queues it to the monitor.
* Updates are created and processed by code under the
* superswitch. All common code sees them as opaque
* blobs.
*/
struct metadata_update {
int len;
char *buf;
void *space; /* allocated space that monitor will use */
struct metadata_update *next;
};
extern struct metadata_update *update_queue, *update_queue_handled;
#define MD_MAJOR 9
extern struct active_array *container;
extern struct active_array *discard_this;
extern struct active_array *pending_discard;
extern struct md_generic_cmd *active_cmd;
void remove_pidfile(char *devname);
void do_monitor(struct supertype *container);
void do_manager(struct supertype *container);
int read_dev_state(int fd);
struct mdstat_ent *mdstat_read(int hold, int start);
extern struct superswitch super_ddf, super_ddf_bvd, super_ddf_svd;
extern int exit_now, manager_ready;
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