linux-kernel - Re: [RFC PATCH v2 18/21] ext4: add support for read_iter and write

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Message-ID: <20120402184204.GE2880@thunk.org>
Date:	Mon, 2 Apr 2012 11:42:04 -0700
From:	Ted Ts'o <tytso@....edu>
To:	Dave Kleikamp <dave.kleikamp@...cle.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Zach Brown <zab@...bo.net>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org
Subject: Re: [RFC PATCH v2 18/21] ext4: add support for read_iter and
 write_iter

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
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