linux-kernel - Re: [PATCH 1/3] lutimesat: simplify utime(2)

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Message-ID: <20070128152459.GA5549@martell.zuzino.mipt.ru>
Date:	Sun, 28 Jan 2007 18:24:59 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Alexey Dobriyan <adobriyan@...nvz.org>, devel@...nvz.org,
	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 1/3] lutimesat: simplify utime(2)

On Fri, Jan 26, 2007 at 12:41:20PM -0800, Andrew Morton wrote:
> On Fri, 26 Jan 2007 14:21:42 +0300
> Alexey Dobriyan <adobriyan@...nvz.org> wrote:
> 
> > Rewrite via do_utimes() like compat_sys_utime().
> 
> I'm somewhat surprised that this wasn't done earlier.

Because, the following patch didn't hit -mm. :)

	From adobriyan@...il.com Wed Oct 25 20:32:24 2006
	Date: Wed, 25 Oct 2006 20:32:24 +0400
	From: Alexey Dobriyan <adobriyan@...il.com>
	To: Andrew Morton <akpm@...l.org>
	Cc: linux-kernel@...r.kernel.org
	Subject: [PATCH] Shrink sys_utime()
	Message-ID: <20061025163224.GA5356@...tell.zuzino.mipt.ru>
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	Content-Type: text/plain; charset=us-ascii
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	All checks in sys_utime() and do_utimes() are duplicated as well as a
	comment. sys_utime() will now use do_utimes() after getting times from
	userspace and projecting them to struct timeval [2].

Nevermind.

> I wonder if there's some subtle reason why this won't work.

I don't know. Compat syscall -- I'm not touching it. Normal syscall --
time_t is long on all archs, suseconds_t is sometimes int, but we're
putting zero there.

> How well tested is this?

It passed utime tests in December's LTP.

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