Re: [PATCH] powerpc: fix wrong divisor in usecs_to_cputime

Anton Blanchard [off-list ref] writes:

Hi Andreas,

quoted

Commit d57af9b (taskstats: use real microsecond granularity for CPU
times) renamed msecs_to_cputime to usecs_to_cputime, but failed to
update all numbers on the way.  This causes nonsensical cpu
idle/iowait values to be displayed in /proc/stat (the only user of
usecs_to_cputime so far).

This also renames __cputime_msec_factor to __cputime_usec_factor,
adapting its value and using it directly in cputime_to_usecs instead
of doing two multiplications.

Thanks for finding this! I noticed the strange behaviour yesterday and
was just about to investigate.

Can I suggest we add: 

Cc: <redacted> [2.6.37+]

so it will make it back into the stable trees?

There is no user of usecs_to_cputime before 3.2-rc1, so it wouldn't have
any effect for older versions.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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