mdmonitor: set small delay once
If mdmonitor is awakened by event, set small delay once to deal with udev and mdadm. Signed-off-by: Blazej Kucman <blazej.kucman@intel.com> Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@intel.com> Signed-off-by: Jes Sorensen <jsorensen@fb.com>
This commit is contained in:
parent
007087d089
commit
cab9c67d46
14
Monitor.c
14
Monitor.c
|
@ -128,6 +128,7 @@ int Monitor(struct mddev_dev *devlist,
|
|||
char *mailfrom;
|
||||
struct alert_info info;
|
||||
struct mddev_ident *mdlist;
|
||||
int delay_for_event = c->delay;
|
||||
|
||||
if (!mailaddr) {
|
||||
mailaddr = conf_get_mailaddr();
|
||||
|
@ -249,7 +250,18 @@ int Monitor(struct mddev_dev *devlist,
|
|||
break;
|
||||
}
|
||||
else {
|
||||
mdstat_wait(c->delay);
|
||||
int wait_result = mdstat_wait(delay_for_event);
|
||||
|
||||
/*
|
||||
* If mdmonitor is awaken by event, set small delay once
|
||||
* to deal with udev and mdadm.
|
||||
*/
|
||||
if (wait_result != 0) {
|
||||
if (c->delay > 5)
|
||||
delay_for_event = 5;
|
||||
} else
|
||||
delay_for_event = c->delay;
|
||||
|
||||
mdstat_close();
|
||||
}
|
||||
}
|
||||
|
|
2
mdadm.h
2
mdadm.h
|
@ -628,7 +628,7 @@ struct mdstat_ent {
|
|||
extern struct mdstat_ent *mdstat_read(int hold, int start);
|
||||
extern void mdstat_close(void);
|
||||
extern void free_mdstat(struct mdstat_ent *ms);
|
||||
extern void mdstat_wait(int seconds);
|
||||
extern int mdstat_wait(int seconds);
|
||||
extern void mdstat_wait_fd(int fd, const sigset_t *sigmask);
|
||||
extern int mddev_busy(char *devnm);
|
||||
extern struct mdstat_ent *mdstat_by_component(char *name);
|
||||
|
|
18
mdstat.c
18
mdstat.c
|
@ -302,7 +302,17 @@ void mdstat_close(void)
|
|||
mdstat_fd = -1;
|
||||
}
|
||||
|
||||
void mdstat_wait(int seconds)
|
||||
/*
|
||||
* function: mdstat_wait
|
||||
* Description: Function waits for event on mdstat.
|
||||
* Parameters:
|
||||
* seconds - timeout for waiting
|
||||
* Returns:
|
||||
* > 0 - detected event
|
||||
* 0 - timeout
|
||||
* < 0 - detected error
|
||||
*/
|
||||
int mdstat_wait(int seconds)
|
||||
{
|
||||
fd_set fds;
|
||||
struct timeval tm;
|
||||
|
@ -312,10 +322,12 @@ void mdstat_wait(int seconds)
|
|||
FD_SET(mdstat_fd, &fds);
|
||||
maxfd = mdstat_fd;
|
||||
} else
|
||||
return;
|
||||
return -1;
|
||||
|
||||
tm.tv_sec = seconds;
|
||||
tm.tv_usec = 0;
|
||||
select(maxfd + 1, NULL, NULL, &fds, &tm);
|
||||
|
||||
return select(maxfd + 1, NULL, NULL, &fds, &tm);
|
||||
}
|
||||
|
||||
void mdstat_wait_fd(int fd, const sigset_t *sigmask)
|
||||
|
|
Loading…
Reference in New Issue