linux-ext4 - Re: Interface for the new fallocate() system call

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Message-ID: <20070330125538.GE8365@osiris.boeblingen.de.ibm.com>
Date:	Fri, 30 Mar 2007 14:55:38 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Jörn Engel <joern@...ybastard.org>
Cc:	Paul Mackerras <paulus@...ba.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	torvalds@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
	xfs@....sgi.com, suparna@...ibm.com, cmm@...ibm.com
Subject: Re: Interface for the new fallocate() system call

On Fri, Mar 30, 2007 at 12:44:49PM +0200, Jörn Engel wrote:
> On Fri, 30 March 2007 19:15:58 +1000, Paul Mackerras wrote:
> > It does mean extra unnecessary work for 64-bit platforms, though...
> 
> Wouldn't that work be confined to fallocate()?  If I understand Heiko
> correctly, the alternative would slow s390 down for every syscall,
> including more performance-critical ones.

That is correct.
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