25 #define INC_STAT(dip, fld)						\  argument
27 		(dip)->stats. fld ++;					\
28 		(dip)->all_stats. fld ++;				\
31 #define DEC_STAT(dip, fld)						\  argument
33 		(dip)->stats. fld --;					\
34 		(dip)->all_stats. fld --;				\
37 #define ADD_STAT(dip, fld, val)						\  argument
40 		(dip)->stats. fld += __v;				\
41 		(dip)->all_stats. fld += __v;				\
44 #define SUB_STAT(dip, fld, val)						\  argument
47 		(dip)->stats. fld -= __v;				\
48 		(dip)->all_stats. fld -= __v;				\
63 static void update_tot_qusz(struct d_info *dip, double now)  in update_tot_qusz()  argument
65 	dip->stats.tot_qusz += ((now - dip->stats.last_qu_change) *  in update_tot_qusz()
66 						dip->stats.cur_qusz);  in update_tot_qusz()
67 	dip->all_stats.tot_qusz += ((now - dip->all_stats.last_qu_change) *  in update_tot_qusz()
68 						dip->all_stats.cur_qusz);  in update_tot_qusz()
70 	dip->stats.last_qu_change = dip->all_stats.last_qu_change = now;  in update_tot_qusz()
73 static void update_idle_time(struct d_info *dip, double now, int force)  in update_idle_time()  argument
75 	if (dip->stats.cur_dev == 0 || force) {  in update_idle_time()
76 		dip->stats.idle_time += (now - dip->stats.last_dev_change);  in update_idle_time()
77 		dip->all_stats.idle_time +=  in update_idle_time()
78 				       (now - dip->all_stats.last_dev_change);  in update_idle_time()
80 	dip->stats.last_dev_change = dip->all_stats.last_dev_change = now;  in update_idle_time()
83 void __dump_stats(__u64 stamp, int all, struct d_info *dip, struct stats_t *asp)  in __dump_stats()  argument
92 		sp = &dip->all_stats;  in __dump_stats()
95 		sp = &dip->stats;  in __dump_stats()
100 	update_idle_time(dip, now, 1);  in __dump_stats()
101 	update_tot_qusz(dip, now);  in __dump_stats()
118 	fprintf(iostat_ofp, "%-11s ", make_dev_hdr(hdr, 11, dip, 1));  in __dump_stats()
194 	struct d_info *dip;  in iostat_dump_stats()  local
205 			dip = list_entry(p, struct d_info, all_head);  in iostat_dump_stats()
206 			__dump_stats(stamp, all, dip, &as);  in iostat_dump_stats()
214 			dip = __dip_find((__u32)((mjr << MINORBITS) | mnr));  in iostat_dump_stats()
215 			__dump_stats(stamp, all, dip, &as);  in iostat_dump_stats()
244 	update_tot_qusz(iop->dip, TO_SEC(iop->t.time));  in iostat_getrq()
245 	INC_STAT(iop->dip, cur_qusz);  in iostat_getrq()
250 	INC_STAT(iop->dip, rqm[IOP_RW(iop)]);  in iostat_merge()
256 	struct d_info *dip = iop->dip;  in iostat_issue()  local
259 	INC_STAT(dip, ios[rw]);  in iostat_issue()
260 	ADD_STAT(dip, sec[rw], iop->t.bytes >> 9);  in iostat_issue()
262 	update_idle_time(dip, now, 0);  in iostat_issue()
263 	INC_STAT(dip, cur_dev);  in iostat_issue()
269 	struct d_info *dip = q_iop->dip;  in iostat_complete()  local
272 		ADD_STAT(c_iop->dip, wait, tdelta(q_iop->i_time,c_iop->t.time));  in iostat_complete()
274 		ADD_STAT(c_iop->dip, wait, tdelta(q_iop->m_time,c_iop->t.time));  in iostat_complete()
276 	update_tot_qusz(dip, now);  in iostat_complete()
277 	DEC_STAT(dip, cur_qusz);  in iostat_complete()
279 	update_idle_time(dip, now, 0);  in iostat_complete()
280 	DEC_STAT(dip, cur_dev);  in iostat_complete()
282 	ADD_STAT(dip, svctm, tdelta(q_iop->t.time, c_iop->t.time));  in iostat_complete()