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/linux-4.4.14/mm/
Dpage-writeback.c145 unsigned long pos_ratio; member
775 long long pos_ratio; in pos_ratio_polynom() local
780 pos_ratio = x; in pos_ratio_polynom()
781 pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT; in pos_ratio_polynom()
782 pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT; in pos_ratio_polynom()
783 pos_ratio += 1 << RATELIMIT_CALC_SHIFT; in pos_ratio_polynom()
785 return clamp(pos_ratio, 0LL, 2LL << RATELIMIT_CALC_SHIFT); in pos_ratio_polynom()
874 long long pos_ratio; /* for scaling up/down the rate limit */ in wb_position_ratio() local
877 dtc->pos_ratio = 0; in wb_position_ratio()
888 pos_ratio = pos_ratio_polynom(setpoint, dtc->dirty, limit); in wb_position_ratio()
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