From: Paul Mackerras <paulus@samba.org>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: linuxppc-dev@ozlabs.org, Thomas Gleixner <tglx@linutronix.de>,
Realtime Kernel <linux-rt-users@vger.kernel.org>
Subject: Re: [PATCH v2 3/4] Implement clockevents driver for powerpc
Date: Fri, 19 Oct 2007 22:36:34 +1000 [thread overview]
Message-ID: <18200.42194.853246.935329@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <47189EF3.7010103@ru.mvista.com>
Sergei Shtylyov writes:
> The xtime_lock is still grabbed by time_init()
That was left in there because we are setting sys_tz and do_gtod, and
do_gtod at least is only updated with the xtime_lock held. Of course,
at that early stage in the boot process, no lock is really needed, but
xtime_lock was taken for consistency with other code.
In fact there's quite a lot of stuff in there that could be removed
now. I also want to make the vdso use an algorithm more like what
getnstimeofday does.
> The only thing I'm still unusre about is that deterministic accounting.
> Could you point me at the patch which deals with this (at least for System 390
See efe567fc8281661524ffa75477a7c4ca9b466c63 in Linus' tree, and look
for posts to lkml by Christian Borntraeger, who has been pursuing the
issue (subject "Re: [stable] 2.6.23 regression: top displaying 9999%
CPU usage").
Paul.
next prev parent reply other threads:[~2007-10-19 12:36 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-21 3:26 [PATCH v2 1/4] Implement {read,update}_persistent_clock Tony Breeds
2007-09-21 3:26 ` [PATCH v2 2/4] Implement generic time of day clocksource for powerpc machines Tony Breeds
2007-09-21 4:05 ` Daniel Walker
2007-09-21 4:59 ` Paul Mackerras
2007-09-21 6:43 ` David Gibson
2007-09-21 4:52 ` Stephen Rothwell
2007-09-21 21:35 ` Tony Breeds
2007-09-21 21:35 ` [PATCH v3 " Tony Breeds
2007-10-03 0:48 ` Paul Mackerras
2007-10-03 4:00 ` Thomas Gleixner
2007-09-21 3:26 ` [PATCH v2 3/4] Implement clockevents driver for powerpc Tony Breeds
2007-10-15 17:40 ` Sergei Shtylyov
2007-10-15 18:33 ` Sergei Shtylyov
2007-10-15 23:44 ` Paul Mackerras
2007-10-17 14:29 ` Sergei Shtylyov
2007-10-18 0:51 ` Paul Mackerras
2007-10-18 15:11 ` Sergei Shtylyov
2007-10-19 1:53 ` Paul Mackerras
2007-10-19 12:11 ` Sergei Shtylyov
2007-10-19 12:36 ` Paul Mackerras [this message]
2007-10-19 13:35 ` Sergei Shtylyov
2007-10-24 12:07 ` Sergei Shtylyov
2007-10-24 23:55 ` Paul Mackerras
2007-10-17 14:34 ` Sergei Shtylyov
2007-10-18 0:36 ` Paul Mackerras
2007-10-18 14:48 ` Sergei Shtylyov
2007-10-19 0:14 ` Paul Mackerras
2007-10-19 9:22 ` Gabriel Paubert
2007-10-19 11:22 ` Paul Mackerras
2007-10-19 11:49 ` Sergei Shtylyov
2007-10-19 12:24 ` Paul Mackerras
2007-09-21 3:26 ` [PATCH v2 4/4] Enable tickless idle and high res timers " Tony Breeds
2007-09-26 19:04 ` [PATCH v2 1/4] Implement {read,update}_persistent_clock Steven Rostedt
2007-09-26 19:39 ` Sergei Shtylyov
2007-09-26 19:44 ` Steven Rostedt
2007-09-26 19:58 ` Thomas Gleixner
2007-10-15 18:05 ` Sergei Shtylyov
2007-10-15 23:46 ` Paul Mackerras
2007-10-16 1:19 ` Benjamin Herrenschmidt
2007-10-17 12:45 ` Sergei Shtylyov
2007-09-27 1:59 ` Benjamin Herrenschmidt
2007-10-15 18:07 ` Sergei Shtylyov
2007-10-15 23:02 ` Benjamin Herrenschmidt
2007-10-17 15:34 ` Sergei Shtylyov
2007-10-18 14:18 ` Sergei Shtylyov
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