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Date:	Mon, 02 Apr 2012 17:45:18 -0500
From:	Dave Kleikamp <>
To:	"Ted Ts'o" <>,,, Zach Brown <>,
	Andreas Dilger <>,
Subject: Re: [RFC PATCH v2 18/21] ext4: add support for read_iter and write_iter

On 04/02/2012 01:42 PM, Ted Ts'o wrote:
> 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?

I'm  not very confident that generic_file_read_iter and
generic_file_write_iter will work for every filesystem that I haven't
yet touched. It should work if they use generic_aio_read and _write, but
some have their own versions of those.

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