From: Andrew Morton <akpm@linux-foundation.org>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Michal Hocko <mhocko@suse.cz>, Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org,
"Artem S. Tashkinov" <t.artem@mailcity.com>,
Dave Jones <davej@redhat.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: Re: [resend PATCH for 3.2] procfs: do not confuse jiffies with cputime64_t
Date: Wed, 21 Dec 2011 15:56:24 -0800 [thread overview]
Message-ID: <20111221155624.1555d8a4.akpm@linux-foundation.org> (raw)
In-Reply-To: <m28vm5pjrl.fsf@igel.home>
On Thu, 22 Dec 2011 00:50:06 +0100
Andreas Schwab <schwab@linux-m68k.org> wrote:
> 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.
>
> For most architectures (which use the asm-generic/cputime.h) jiffies use
> the same unit as cputime64_t values, but ia64, powerpc and s390 make
> them different.
>
OK, but
a) what effect does this problem have upon users of the kernel?
b) which kernel version(s) are affected?
next prev parent reply other threads:[~2011-12-21 23:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m28vmi7ip3.fsf@igel.home>
2011-12-12 8:16 ` [PATCH] procfs: do not confuse jiffies with cputime64_t Michal Hocko
2011-12-12 9:22 ` Arnd Bergmann
2011-12-12 10:17 ` Andreas Schwab
2011-12-12 11:51 ` [PATCH v2] " Andreas Schwab
2011-12-12 12:43 ` Michal Hocko
2011-12-12 13:07 ` [PATCH v3] " Andreas Schwab
2011-12-12 13:12 ` Michal Hocko
2011-12-21 10:03 ` [resend PATCH for 3.2] " Michal Hocko
2011-12-21 19:43 ` Andrew Morton
2011-12-21 19:59 ` Andrew Morton
2011-12-21 23:50 ` Andreas Schwab
2011-12-21 23:56 ` Andrew Morton [this message]
2011-12-22 0:14 ` Andreas Schwab
2011-12-22 0:19 ` Andrew Morton
2011-12-22 10:18 ` Andreas Schwab
2011-12-21 23:55 ` Andreas Schwab
2011-12-21 23:59 ` Andrew Morton
2011-12-22 0:20 ` Andreas Schwab
2011-12-22 9:55 ` Martin Schwidefsky
2011-12-22 10:19 ` Andreas Schwab
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