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git.ipfire.org Git - thirdparty/mdadm.git/blob - mdmon.h
2 #define dprintf(fmt, arg...) \
3 fprintf(stderr, fmt, ##arg)
5 #define dprintf(fmt, arg...) \
6 ({ if (0) fprintf(stderr, fmt, ##arg); 0; })
9 enum array_state
{ clear
, inactive
, suspended
, readonly
, read_auto
,
10 clean
, active
, write_pending
, active_idle
, bad_word
};
12 enum sync_action
{ idle
, reshape
, resync
, recover
, check
, repair
, bad_action
};
17 struct supertype
*container
;
18 struct active_array
*next
, *replaces
;
23 enum array_state prev_state
, curr_state
, next_state
;
24 enum sync_action prev_action
, curr_action
, next_action
;
26 int check_degraded
; /* flag set by mon, read by manage */
30 unsigned long long resync_start
;
34 * Metadata updates are handled by the monitor thread,
35 * as it has exclusive access to the metadata.
36 * When the manager want to updates metadata, either
37 * for it's own reason (e.g. committing a spare) or
38 * on behalf of mdadm, it creates a metadata_update
39 * structure and queues it to the monitor.
40 * Updates are created and processed by code under the
41 * superswitch. All common code sees them as opaque
44 extern struct metadata_update
*update_queue
, *update_queue_handled
;
48 extern struct active_array
*container
;
49 extern struct active_array
*discard_this
;
50 extern struct active_array
*pending_discard
;
51 extern struct md_generic_cmd
*active_cmd
;
54 void remove_pidfile(char *devname
);
55 void do_monitor(struct supertype
*container
);
56 void do_manager(struct supertype
*container
);
58 int read_dev_state(int fd
);
60 struct mdstat_ent
*mdstat_read(int hold
, int start
);
62 extern int exit_now
, manager_ready
;
63 extern int mon_tid
, mgr_tid
;