1323 static void fmeter_init(struct fmeter *fmp)  in fmeter_init()  argument
1325 	fmp->cnt = 0;  in fmeter_init()
1326 	fmp->val = 0;  in fmeter_init()
1327 	fmp->time = 0;  in fmeter_init()
1328 	spin_lock_init(&fmp->lock);  in fmeter_init()
1332 static void fmeter_update(struct fmeter *fmp)  in fmeter_update()  argument
1335 	time_t ticks = now - fmp->time;  in fmeter_update()
1342 		fmp->val = (FM_COEF * fmp->val) / FM_SCALE;  in fmeter_update()
1343 	fmp->time = now;  in fmeter_update()
1345 	fmp->val += ((FM_SCALE - FM_COEF) * fmp->cnt) / FM_SCALE;  in fmeter_update()
1346 	fmp->cnt = 0;  in fmeter_update()
1350 static void fmeter_markevent(struct fmeter *fmp)  in fmeter_markevent()  argument
1352 	spin_lock(&fmp->lock);  in fmeter_markevent()
1353 	fmeter_update(fmp);  in fmeter_markevent()
1354 	fmp->cnt = min(FM_MAXCNT, fmp->cnt + FM_SCALE);  in fmeter_markevent()
1355 	spin_unlock(&fmp->lock);  in fmeter_markevent()
1359 static int fmeter_getrate(struct fmeter *fmp)  in fmeter_getrate()  argument
1363 	spin_lock(&fmp->lock);  in fmeter_getrate()
1364 	fmeter_update(fmp);  in fmeter_getrate()
1365 	val = fmp->val;  in fmeter_getrate()
1366 	spin_unlock(&fmp->lock);  in fmeter_getrate()