scale64_check_overflow

Name:Scale base by mult/div checking for overflow

Proto:static int scale64_check_overflow(u64 mult, u64 div, u64 *base)

Type:int

Parameter:

Type	Parameter	Name
u64	mult
u64	div
u64 *	base

1002

tmp = div64_u64_rem - unsigned 64bit divide with 64bit divisor and remainder*@dividend: 64bit dividend*@divisor: 64bit divisor*@remainder: 64bit remainder* This implementation is a comparable to algorithm used by div64_u64

1004

If sizeof(u64) * 8 - ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit < ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit || sizeof(u64) * 8 - ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit < ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit Then Return -EOVERFLOW

1007

tmp *= mult

1008

rem *= mult

1010

do_div() is NOT a C function(rem, div)

1011

base = tmp + rem

1012

Return 0

**Caller**
Name	Describe
adjust_historical_crosststamp	adjust_historical_crosststamp - adjust crosstimestamp previous to current interval@history: Snapshot representing start of history@partial_history_cycles: Cycle offset into history (fractional part)*@total_history_cycles: Total history length in

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