linux-ext4 - Re: [RFC 00/32] making inode time stamps y2038 ready

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Message-ID: <18158267.ZX0ZMPkVDT@wuerfel>
Date:	Tue, 03 Jun 2014 16:37:46 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	"Joseph S. Myers" <joseph@...esourcery.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org, john.stultz@...aro.org,
	hch@...radead.org, tglx@...utronix.de, geert@...ux-m68k.org,
	lftan@...era.com, linux-fsdevel@...r.kernel.org,
	ceph-devel@...r.kernel.org, cluster-devel@...hat.com,
	coda@...cmu.edu, codalist@...emann.coda.cs.cmu.edu,
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	reiserfs-devel@...r.kernel.org, samba-technical@...ts.samba.org,
	xfs@....sgi.com
Subject: Re: [RFC 00/32] making inode time stamps y2038 ready

On Tuesday 03 June 2014 14:33:10 Joseph S. Myers wrote:
> On Tue, 3 Jun 2014, Arnd Bergmann wrote:
> 
> > I think John Stultz and Thomas Gleixner have already started looking
> > at how the timekeeping code can be updated. Once that is done, we should
> > be able to add a functional 64-bit gettimeofday/settimeofday syscall
> > pair. While I definitely agree this is one of the most basic things to
> > have, it's also not an area of the kernel that is easy to change.
> 
> 64-bit clock_gettime / clock_settime instead of gettimeofday / 
> settimeofday should avoid the need for the kernel to have a 64-bit version 
> of struct timeval.  (Userspace 64-bit gettimeofday / settimeofday would 
> need to use a combination of the syscalls if the tz pointer is non-NULL.)

Yes, that's what I meant.

	Arnd
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