2465 static void fmeter_init(struct fmeter *fmp)  in fmeter_init()  argument
2467 	fmp->cnt = 0;  in fmeter_init()
2468 	fmp->val = 0;  in fmeter_init()
2469 	fmp->time = 0;  in fmeter_init()
2470 	spin_lock_init(&fmp->lock);  in fmeter_init()
2474 static void fmeter_update(struct fmeter *fmp)  in fmeter_update()  argument
2480 	ticks = now - fmp->time;  in fmeter_update()
2487 		fmp->val = (FM_COEF * fmp->val) / FM_SCALE;  in fmeter_update()
2488 	fmp->time = now;  in fmeter_update()
2490 	fmp->val += ((FM_SCALE - FM_COEF) * fmp->cnt) / FM_SCALE;  in fmeter_update()
2491 	fmp->cnt = 0;  in fmeter_update()
2495 static void fmeter_markevent(struct fmeter *fmp)  in fmeter_markevent()  argument
2497 	spin_lock(&fmp->lock);  in fmeter_markevent()
2498 	fmeter_update(fmp);  in fmeter_markevent()
2499 	fmp->cnt = min(FM_MAXCNT, fmp->cnt + FM_SCALE);  in fmeter_markevent()
2500 	spin_unlock(&fmp->lock);  in fmeter_markevent()
2504 static int fmeter_getrate(struct fmeter *fmp)  in fmeter_getrate()  argument
2508 	spin_lock(&fmp->lock);  in fmeter_getrate()
2509 	fmeter_update(fmp);  in fmeter_getrate()
2510 	val = fmp->val;  in fmeter_getrate()
2511 	spin_unlock(&fmp->lock);  in fmeter_getrate()