1404 static void fmeter_init(struct fmeter *fmp)  in fmeter_init()  argument
1406 	fmp->cnt = 0;  in fmeter_init()
1407 	fmp->val = 0;  in fmeter_init()
1408 	fmp->time = 0;  in fmeter_init()
1409 	spin_lock_init(&fmp->lock);  in fmeter_init()
1413 static void fmeter_update(struct fmeter *fmp)  in fmeter_update()  argument
1416 	time_t ticks = now - fmp->time;  in fmeter_update()
1423 		fmp->val = (FM_COEF * fmp->val) / FM_SCALE;  in fmeter_update()
1424 	fmp->time = now;  in fmeter_update()
1426 	fmp->val += ((FM_SCALE - FM_COEF) * fmp->cnt) / FM_SCALE;  in fmeter_update()
1427 	fmp->cnt = 0;  in fmeter_update()
1431 static void fmeter_markevent(struct fmeter *fmp)  in fmeter_markevent()  argument
1433 	spin_lock(&fmp->lock);  in fmeter_markevent()
1434 	fmeter_update(fmp);  in fmeter_markevent()
1435 	fmp->cnt = min(FM_MAXCNT, fmp->cnt + FM_SCALE);  in fmeter_markevent()
1436 	spin_unlock(&fmp->lock);  in fmeter_markevent()
1440 static int fmeter_getrate(struct fmeter *fmp)  in fmeter_getrate()  argument
1444 	spin_lock(&fmp->lock);  in fmeter_getrate()
1445 	fmeter_update(fmp);  in fmeter_getrate()
1446 	val = fmp->val;  in fmeter_getrate()
1447 	spin_unlock(&fmp->lock);  in fmeter_getrate()