From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ted Ts'o <tytso@mit.edu>
Subject: Re: [RFC PATCH v2 18/21] ext4: add support for read_iter and
 write_iter
Date: Mon, 2 Apr 2012 11:42:04 -0700
Message-ID: <20120402184204.GE2880@thunk.org>
References: <1333122228-13633-1-git-send-email-dave.kleikamp@oracle.com>
 <1333122228-13633-19-git-send-email-dave.kleikamp@oracle.com>
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Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Zach Brown <zab@zabbo.net>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	linux-ext4@vger.kernel.org
To: Dave Kleikamp <dave.kleikamp@oracle.com>
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On Fri, Mar 30, 2012 at 10:43:45AM -0500, Dave Kleikamp wrote:
> use the generic .read_iter and .write_iter functions

Potentially silly question --- why not use NULL pointer to mean
generic_file_read_iter and generic_file_write_iter?  Then you won't
have to patch a bunch of file systems to add the generic .read_iter
and .write_iter?

						- Ted