linux-kernel - Re: [PATCH -mm 5/5][AIO] - Add listio syscall support

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Message-Id: <20070123215318.beddfdf7.akpm@osdl.org>
Date:	Tue, 23 Jan 2007 21:53:18 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Sébastien Dugué <sebastien.dugue@...l.net>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-aio <linux-aio@...ck.org>,
	Bharata B Rao <bharata@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Ulrich Drepper <drepper@...hat.com>,
	Zach Brown <zach.brown@...cle.com>,
	Jean Pierre Dion <jean-pierre.dion@...l.net>,
	Badari Pulavarty <pbadari@...ibm.com>
Subject: Re: [PATCH -mm 5/5][AIO] - Add listio syscall support

On Wed, 17 Jan 2007 10:55:54 +0100
Sébastien Dugué <sebastien.dugue@...l.net> wrote:

> +struct lio_event *lio_create(struct sigevent __user *user_event,
> +			int mode)
> +{
> +	int ret = 0;
> +	struct lio_event *lio = NULL;
> +
> +	if (unlikely((mode == LIO_NOWAIT) && !user_event))
> +		return lio;
> +
> +	lio = kzalloc(sizeof(*lio), GFP_KERNEL);
> +
> +	if (!lio)
> +		return ERR_PTR(-EAGAIN);
> +

Why EAGAIN and not ENOMEM?
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