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

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Message-ID: <20070301225855.24ecaba0@lxorguk.ukuu.org.uk>
Date:	Thu, 1 Mar 2007 22:58:55 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>, suparna@...ibm.com,
	cmm@...ibm.com, alex@...sterfs.com, suzuki@...ibm.com
Subject: Re: [RFC] Heads up on sys_fallocate()

On Thu, 01 Mar 2007 13:14:32 -0800
Jeremy Fitzhardinge <jeremy@...p.org> wrote:

> Amit K. Arora wrote:
> > +	if (inode->i_op && inode->i_op->fallocate)
> > +		ret = inode->i_op->fallocate(inode, offset, len);
> > +	else
> > +		ret = -ENOTTY;
> 
> You can only allocate space on typewriters? ;)

A lot of people get confused about -ENOTTY, but it is the return for
attempting to use an ioctl on the wrong type of object, so this appears
to be quite correct.
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