bfq_wr_duration

Name:bfq_wr_duration

Proto:static unsigned int bfq_wr_duration(struct bfq_data *bfqd)

Type:unsigned int

Parameter:

Type	Parameter	Name
struct bfq_data *	bfqd

972

If maximum duration of a weight-raising period (jiffies) > 0 Then Return maximum duration of a weight-raising period (jiffies)

975

dur = * Cached value of the product ref_rate*ref_wr_duration, used * for computing the maximum duration of weight raising * automatically.

976

do_div() is NOT a C function(dur, * Current estimate of the device peak rate, measured in * [(sectors/usec) / 2^BFQ_RATE_SHIFT]. The left-shift by * BFQ_RATE_SHIFT is performed to increase precision in * fixed-point calculations.)

998

Return clamp_val - return a value clamped to a given range using val's type*@val: current value*@lo: minimum allowable value*@hi: maximum allowable value* This macro does no typechecking and uses temporary variables of whatever* type the input argument @val is(dur, msecs_to_jiffies: - convert milliseconds to jiffies*@m: time in milliseconds* conversion is done as follows:* - negative values mean 'infinite timeout' (MAX_JIFFY_OFFSET)* - 'too large' values [that would result in larger than, msecs_to_jiffies: - convert milliseconds to jiffies*@m: time in milliseconds* conversion is done as follows:* - negative values mean 'infinite timeout' (MAX_JIFFY_OFFSET)* - 'too large' values [that would result in larger than)

**Caller**
Name	Describe
switch_back_to_interactive_wr	switch back from soft real-time to interactive weight raising
bfq_bfqq_resume_state
bfq_update_bfqq_wr_on_rq_arrival
bfq_add_request
bfq_bfqq_save_state
bfq_update_wr_data

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion