lkml.org 
[lkml]   [2011]   [Dec]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [resend PATCH for 3.2] procfs: do not confuse jiffies with cputime64_t
Date
Andrew Morton <akpm@linux-foundation.org> writes:

> From: Andreas Schwab <schwab@linux-m68k.org>
> Subject: procfs: do not confuse jiffies with cputime64_t
>
> get_{idle,iowait}_time are supposed to return cputime64_t values, not
> jiffies. Add usecs_to_cputime64 for this.

Subject: procfs: do not confuse jiffies with cputime64_t

Commit 2a95ea6c0d129b4568fb64e1deda16ceb20e6636 ("procfs: do not
overflow get_{idle,iowait}_time for nohz") did not take into account
that one some architectures jiffies and cputime use different units.
Instead of converting the usec value returned by
get_cpu_{idle,iowait}_time_us to units of jiffies, use the new function
usecs_to_cputime64 to convert it to the correct unit of cputime64_t.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>

Andreas.

--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."


\
 
 \ /
  Last update: 2011-12-22 11:21    [W:0.287 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site