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MFcalloutng (r244255 by mav, with minor changes):

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Specify that syslog doesn't need exactly 5 wakeups per second.

Sponsored by:	Google Summer of Code 2012, iXsystems inc.
Tested by:	flo, marius, ian, markj, Fabian Keil
This commit is contained in:
Davide Italiano 2013-03-04 16:07:55 +00:00
parent 098176f0d0
commit c38250c9b9
1 changed files with 11 additions and 12 deletions
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23
sys/kern/subr_log.c
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@ -117,8 +117,8 @@ logopen(struct cdev *dev, int flags, int mode, struct thread *td)
return (EBUSY);
}
log_open = 1;
callout_reset(&logsoftc.sc_callout, hz / log_wakeups_per_second,
logtimeout, NULL);
callout_reset_sbt(&logsoftc.sc_callout,
SBT_1S / log_wakeups_per_second, 0, logtimeout, NULL, C_PREL(1));
mtx_unlock(&msgbuf_lock);
fsetown(td->td_proc->p_pid, &logsoftc.sc_sigio); /* signal process only */
@ -233,22 +233,21 @@ logtimeout(void *arg)
if (!log_open)
return;
if (log_wakeups_per_second < 1) {
printf("syslog wakeup is less than one. Adjusting to 1.\n");
log_wakeups_per_second = 1;
}
if (msgbuftrigger == 0) {
callout_schedule(&logsoftc.sc_callout,
hz / log_wakeups_per_second);
return;
}
if (msgbuftrigger == 0)
goto done;
msgbuftrigger = 0;
selwakeuppri(&logsoftc.sc_selp, LOG_RDPRI);
KNOTE_LOCKED(&logsoftc.sc_selp.si_note, 0);
if ((logsoftc.sc_state & LOG_ASYNC) && logsoftc.sc_sigio != NULL)
pgsigio(&logsoftc.sc_sigio, SIGIO, 0);
cv_broadcastpri(&log_wakeup, LOG_RDPRI);
callout_schedule(&logsoftc.sc_callout, hz / log_wakeups_per_second);
done:
if (log_wakeups_per_second < 1) {
printf("syslog wakeup is less than one. Adjusting to 1.\n");
log_wakeups_per_second = 1;
}
callout_reset_sbt(&logsoftc.sc_callout,
SBT_1S / log_wakeups_per_second, 0, logtimeout, NULL, C_PREL(1));
}
/*ARGSUSED*/