linux-kernel - Re: [PATCH] vfs: added better file aio_read aio

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Message-ID: <20080916154137.GB2119@parisc-linux.org>
Date:	Tue, 16 Sep 2008 09:41:37 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Bodo Eggert <7eggert@....de>
Cc:	Manish Katiyar <mkatiyar@...il.com>,
	Marco Stornelli <marco.stornelli@...itel.it>,
	viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vfs: added better file aio_read aio_write operations presence check

On Tue, Sep 16, 2008 at 05:36:09PM +0200, Bodo Eggert wrote:
> Why can't the file system registration code set filp->f_op->aio_read to
> generic_file_aio_read?

        const struct file_operations    *f_op;

Having said that, BUILD_BUG_ON(!f_op->aio_read) is fine by me ... make
the filesystem writer put it in without slowing down anyone at runtime.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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