2052 static void fmeter_init(struct fmeter *fmp)  in fmeter_init()  argument
2054 	fmp->cnt = 0;  in fmeter_init()
2055 	fmp->val = 0;  in fmeter_init()
2056 	fmp->time = 0;  in fmeter_init()
2057 	spin_lock_init(&fmp->lock);  in fmeter_init()
2061 static void fmeter_update(struct fmeter *fmp)  in fmeter_update()  argument
2067 	ticks = now - fmp->time;  in fmeter_update()
2074 		fmp->val = (FM_COEF * fmp->val) / FM_SCALE;  in fmeter_update()
2075 	fmp->time = now;  in fmeter_update()
2077 	fmp->val += ((FM_SCALE - FM_COEF) * fmp->cnt) / FM_SCALE;  in fmeter_update()
2078 	fmp->cnt = 0;  in fmeter_update()
2082 static void fmeter_markevent(struct fmeter *fmp)  in fmeter_markevent()  argument
2084 	spin_lock(&fmp->lock);  in fmeter_markevent()
2085 	fmeter_update(fmp);  in fmeter_markevent()
2086 	fmp->cnt = min(FM_MAXCNT, fmp->cnt + FM_SCALE);  in fmeter_markevent()
2087 	spin_unlock(&fmp->lock);  in fmeter_markevent()
2091 static int fmeter_getrate(struct fmeter *fmp)  in fmeter_getrate()  argument
2095 	spin_lock(&fmp->lock);  in fmeter_getrate()
2096 	fmeter_update(fmp);  in fmeter_getrate()
2097 	val = fmp->val;  in fmeter_getrate()
2098 	spin_unlock(&fmp->lock);  in fmeter_getrate()