__wb_calc_thresh

Name:__wb_calc_thresh - @wb's share of dirty throttling threshold*@dtc: dirty_throttle_context of interest* Note that balance_dirty_pages() will only seriously take it as a hard limit* when sleeping max_pause per page is not enough to keep the dirty pages under

Proto:static unsigned long __wb_calc_thresh(struct dirty_throttle_control *dtc)

Type:unsigned long

Parameter:

Type	Parameter	Name
struct dirty_throttle_control *	dtc

766

dom = dtc_dom(dtc)

767

thresh = dirty threshold

775

fprop_fraction_percpu( & Scale the writeback cache size proportional to the relative* writeout speed, wb_completions, & numerator, & denominator)

778

wb_thresh = thresh * (100 - di_min_ratio keeps the sum of the minimum dirty shares of all* registered backing devices, which, for obvious reasons, can not* exceed 100%.) / 100

779

wb_thresh *= numerator

780

wb_thresh = div64_ul(wb_thresh, denominator)

782

wb_min_max_ratio(wb, & wb_min_ratio, & wb_max_ratio)

784

wb_thresh += thresh * wb_min_ratio / 100

785

If wb_thresh > thresh * wb_max_ratio / 100 Then wb_thresh = thresh * wb_max_ratio / 100

788

Return wb_thresh

**Caller**
Name	Describe
wb_calc_thresh
wb_dirty_limits

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