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

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Message-ID: <17946.14646.808334.441833@cargo.ozlabs.ibm.com>
Date:	Mon, 9 Apr 2007 23:01:42 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Jörn Engel <joern@...ybastard.org>
Cc:	Heiko Carstens <heiko.carstens@...ibm.com>,
	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

Jörn Engel writes:

> 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.

The alternative that Jakub suggested wouldn't slow s390 down.

Paul.
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