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From: john stultz <johnstul@us.ibm.com>
To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Alexander Shishkin <virtuoso@slind.org>,
	gregkh@suse.de, lkml@vger.kernel.org,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	Thomas Gleixner <tglx@linutronix.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Jon Hunter <jon-hunter@ti.com>, Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	David Howells <dhowells@redhat.com>, Avi Kivity <avi@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>, John Kacur <jkacur@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [RFC] notify userspace about time changes
Date: Thu, 05 Aug 2010 15:30:30 -0700	[thread overview]
Message-ID: <1281047430.3405.23.camel@localhost.localdomain> (raw)
In-Reply-To: <1281047390.3405.22.camel@localhost.localdomain>

On Thu, 2010-08-05 at 15:29 -0700, john stultz wrote:
> On Fri, 2010-08-06 at 00:17 +0200, Kay Sievers wrote:
> > On Thu, Aug 5, 2010 at 23:11, john stultz <johnstul@us.ibm.com> wrote:
> > > On Thu, 2010-08-05 at 15:33 +0300, Alexander Shishkin wrote:
> > >> On 4 August 2010 18:58, john stultz <johnstul@us.ibm.com> wrote:
> > >> > Is there a actual use case that you need this for?  I don't really have
> > >> > an issue with the code I just really want to make sure the feature would
> > >> > be useful enough to justify the API and code maintenance going forward.
> > 
> > Basically everything that schedules an action based on an absolute
> > time specification, like at 3pm today, and not in 3 hours from now,
> > needs to track such system time changes. Otherwise it has to do
> > nonsense like cron does, to wake up every minute to check the current
> > time.
> 
> time_create(CLOCK_REALTIME,...) creates absolute (not relative) timers

Sorry, *timer_create*.

thanks
-john



  reply	other threads:[~2010-08-05 22:31 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-04 12:48 [PATCH] [RFC] notify userspace about time changes Alexander Shishkin
2010-08-04 12:54 ` Bastien ROUCARIES
2010-08-04 15:49   ` Alexander Shishkin
     [not found] ` <1280926108-24668-1-git-send-email-virtuoso-0lOfPCoBze7YtjvyW6yDsg@public.gmane.org>
2010-08-04 15:32   ` Kirill A. Shutemov
2010-08-04 15:32     ` Kirill A. Shutemov
2010-08-04 15:46     ` Alexander Shishkin
2010-08-05 10:05       ` Kirill A. Shutemov
2010-08-04 15:58 ` john stultz
2010-08-04 18:48   ` Chris Friesen
2010-08-05  0:52     ` john stultz
2010-08-05 12:39       ` Alexander Shishkin
2010-08-05 14:10       ` Chris Friesen
2010-08-05 12:33   ` Alexander Shishkin
2010-08-05 21:11     ` john stultz
2010-08-05 21:38       ` Greg KH
2010-08-05 22:22         ` Kay Sievers
2010-08-05 22:34           ` H. Peter Anvin
2010-08-05 22:39             ` Kay Sievers
2010-08-05 22:43               ` H. Peter Anvin
2010-08-05 22:38           ` Greg KH
2010-08-06  7:21             ` Alexander Shishkin
2010-08-06 23:44               ` Greg KH
2010-08-06  7:11           ` Alexander Shishkin
2010-08-06  7:43           ` Bastien ROUCARIES
2010-08-05 22:17       ` Kay Sievers
2010-08-05 22:29         ` john stultz
2010-08-05 22:30           ` john stultz [this message]
2010-08-05 23:50           ` Kay Sievers
2010-08-06  0:16             ` john stultz

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