linux-kernel - Re: [RFC] Heads up on sys

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Message-ID: <45EC403C.3020704@redhat.com>
Date:	Mon, 05 Mar 2007 08:07:24 -0800
From:	Ulrich Drepper <drepper@...hat.com>
To:	Theodore Tso <tytso@....edu>, Ulrich Drepper <drepper@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Christoph Hellwig <hch@...radead.org>,
	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, suparna@...ibm.com, cmm@...ibm.com,
	alex@...sterfs.com, suzuki@...ibm.com
Subject: Re: [RFC] Heads up on sys_fallocate()

Theodore Tso wrote:
> [...] although the libc
> implementation still wouldn't be able to go away for long time due to
> the need to be backwards compatible with older kernels that didn't
> have this support.

It's better than that.  If somebody compiles glibc to not run on older
kernels at all (tested at runtime) then the code is dropped.  E.g., the
current Fedora glibc does not support 2.6.8 or earlier.

So, don't let the compat code be a factor in the decision making.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖


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