linux-master/block/blk-throttle.c

69 	unsigned int throtl_slice;
133  *           every throtl_slice, the limit scales up 1/2 .low limit till the
141 	    td->low_upgrade_time + td->scale * td->throtl_slice))
142 		td->scale = (jiffies - td->low_upgrade_time) / td->throtl_slice;
580 	unsigned long max_expire = jiffies + 8 * sq_to_td(sq)->throtl_slice;
650 	tg->slice_end[rw] = jiffies + tg->td->throtl_slice;
663 	tg->slice_end[rw] = jiffies + tg->td->throtl_slice;
678 	tg->slice_end[rw] = roundup(jiffy_end, tg->td->throtl_slice);
760 	throtl_set_slice_end(tg, rw, jiffies + tg->td->throtl_slice);
763 				 tg->td->throtl_slice);
791 		   rw == READ ? 'R' : 'W', time_elapsed / tg->td->throtl_slice,
845 	jiffy_elapsed_rnd = roundup(jiffy_elapsed + 1, tg->td->throtl_slice);
874 		jiffy_elapsed_rnd = tg->td->throtl_slice;
876 	jiffy_elapsed_rnd = roundup(jiffy_elapsed_rnd, tg->td->throtl_slice);
928 	 * existing slice to make sure it is at least throtl_slice interval
937 		    jiffies + tg->td->throtl_slice))
939 				jiffies + tg->td->throtl_slice);
1855 		tg_last_low_overflow_time(tg) + tg->td->throtl_slice) &&
1882 	if (time_before(jiffies, td->low_downgrade_time + td->throtl_slice))
1909 	if (time_after(tg->last_check_time + tg->td->throtl_slice, now))
1915 	     __tg_last_low_overflow_time(tg) + tg->td->throtl_slice))
1952 		td->low_upgrade_time = jiffies - td->scale * td->throtl_slice;
1970 					td->throtl_slice) &&
1981 	if (time_before(jiffies, td->low_upgrade_time + td->throtl_slice))
2006 	if (time_after(tg->last_check_time + tg->td->throtl_slice, now))
2013 			tg->td->throtl_slice))
2361 		tg->bio_cnt_reset_time = tg->td->throtl_slice + jiffies;
2435 		td->throtl_slice = DFL_THROTL_SLICE_SSD;
2438 		td->throtl_slice = DFL_THROTL_SLICE_HD;
2447 	td->throtl_slice = DFL_THROTL_SLICE_HD;
2461 	return sprintf(page, "%u\n", jiffies_to_msecs(q->td->throtl_slice));
2477 	q->td->throtl_slice = t;