On Wed, Aug 01, 2018 at 08:49:58AM -0700, Tejun Heo wrote: > Hello, > > On Tue, Jul 31, 2018 at 05:25:59PM -0700, Dennis Zhou wrote: > ... > > + /* > > + * CALC_LOAD takes in a number stored in fixed point representation. > > + * Because we are using this for IO time in ns, the values stored > > + * are significantly larger than the FIXED_1 denominator (2048). > > + * Therefore, rounding errors in the calculation are negligible and > > + * can be ignored. > > + */ > > + exp_idx = min_t(int, BLKIOLATENCY_NR_EXP_FACTORS - 1, > > + iolat->cur_win_nsec / BLKIOLATENCY_EXP_BUCKET_SIZE); > > Build bot is complaining about naked 64bit div. Should use one of the > div64*() helpers. > > Looks good to me. Once Johannes's concerns are addressed, please feel > free to add
Ooh, one nitpick. total_lat_avg is a bit of a misnomer now. Maybe rename to lat_avg? Thanks. -- tejun
