1406 static void fmeter_init(struct fmeter *fmp)  in fmeter_init()  argument
1408 	fmp->cnt = 0;  in fmeter_init()
1409 	fmp->val = 0;  in fmeter_init()
1410 	fmp->time = 0;  in fmeter_init()
1411 	spin_lock_init(&fmp->lock);  in fmeter_init()
1415 static void fmeter_update(struct fmeter *fmp)  in fmeter_update()  argument
1421 	ticks = now - fmp->time;  in fmeter_update()
1428 		fmp->val = (FM_COEF * fmp->val) / FM_SCALE;  in fmeter_update()
1429 	fmp->time = now;  in fmeter_update()
1431 	fmp->val += ((FM_SCALE - FM_COEF) * fmp->cnt) / FM_SCALE;  in fmeter_update()
1432 	fmp->cnt = 0;  in fmeter_update()
1436 static void fmeter_markevent(struct fmeter *fmp)  in fmeter_markevent()  argument
1438 	spin_lock(&fmp->lock);  in fmeter_markevent()
1439 	fmeter_update(fmp);  in fmeter_markevent()
1440 	fmp->cnt = min(FM_MAXCNT, fmp->cnt + FM_SCALE);  in fmeter_markevent()
1441 	spin_unlock(&fmp->lock);  in fmeter_markevent()
1445 static int fmeter_getrate(struct fmeter *fmp)  in fmeter_getrate()  argument
1449 	spin_lock(&fmp->lock);  in fmeter_getrate()
1450 	fmeter_update(fmp);  in fmeter_getrate()
1451 	val = fmp->val;  in fmeter_getrate()
1452 	spin_unlock(&fmp->lock);  in fmeter_getrate()