From: Sergei Shtylyov <sshtylyov@ru•mvista.com>
To: Thomas Gleixner <tglx@linutronix•de>
Cc: Andrew Morton <akpm@osdl•org>, Daniel Walker <dwalker@mvista•com>,
john stultz <johnstul@us•ibm.com>,
LKML <linux-kernel@vger•kernel.org>,
LinuxPPC-dev <linuxppc-dev@ozlabs•org>,
Ingo Molnar <mingo@elte•hu>
Subject: Re: [RFC] clocksouce implementation for powerpc
Date: Wed, 20 Jun 2007 22:11:58 +0400 [thread overview]
Message-ID: <46796DEE.5090206@ru.mvista.com> (raw)
In-Reply-To: <1182360681.3316.25.camel@chaos>
Hello.
Thomas Gleixner wrote:
>>>>+void update_vsyscall(struct timespec *wall_time, struct clocksource *clock)
>>>>+{
>>>>+ timer_recalc_offset(tb_last_jiffy);
>>>>+ timer_check_rtc();
>>>>+}
>>
>>>Hmm .. This doesn't look like it's taking into account that the time has
>>>changed ..
>>
>> Why? By the time it gets called (form the timer softirq context)
>
>
> It is called from interrupt context at least in mainline. Only the -rt
> patch moves this to the softirq.
Anyway, by the time it gets called, tb_last_jiffy gets updated.
> tglx
WBR, Sergei
next prev parent reply other threads:[~2007-06-20 18:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070616101126.296384219@inhelltoy.tec.linutronix.de>
[not found] ` <20070616101637.107940593@inhelltoy.tec.linutronix.de>
[not found] ` <1182009083.11539.369.camel@imap.mvista.com>
2007-06-20 6:57 ` [RFC] clocksouce implementation for powerpc Tony Breeds
2007-06-20 14:57 ` Daniel Walker
2007-06-20 17:20 ` Sergei Shtylyov
2007-06-20 17:31 ` Thomas Gleixner
2007-06-20 18:11 ` Sergei Shtylyov [this message]
2007-06-22 6:23 ` Tony Breeds
2007-06-20 16:53 ` Sergei Shtylyov
2007-06-22 6:10 ` Tony Breeds
2007-06-22 12:42 ` Sergei Shtylyov
2007-06-20 21:06 ` john stultz
2007-06-22 6:28 ` Tony Breeds
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