[PATCH 0/3] VFS changes to collapse all the vectored and AIO support

From: Badari Pulavarty <pbadari@us.ibm.com>
To: christoph <hch@lst.de>, Benjamin LaHaise <bcrl@kvack.org>,
	Zach Brown <zach.brown@oracle.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	pbadari@us.ibm.com
Subject: [PATCH 0/3] VFS changes to collapse all the vectored and AIO support
Date: Thu, 02 Feb 2006 08:12:38 -0800	[thread overview]
Message-ID: <1138896758.28382.112.camel@dyn9047017102.beaverton.ibm.com> (raw)

Hi,

This work was originally suggested & started by Christoph Hellwig, 
when Zack Brown tried to add vectored support for AIO. These series
of changes collapses all the vectored IO support into single
file-operation method using aio_read/aio_write. 

Christoph & Zack, comments/suggestions ? If you are happy with the
work, can you add your Sign-off or Ack ?

Here is the summary:

[PATCH 1/3] Vectorize aio_read/aio_write methods

[PATCH 2/3] Remove readv/writev methods and use aio_read/aio_write
instead.

[PATCH 3/3] Zack's core aio changes to support vectored AIO.

To Do/Issues:

1) Since aio_read/aio_write are vectorized now, need to modify
nfs AIO+DIO and usb/gadget to handle vectors. Is it needed ?
For now, it handles only single vector. Christoph, should I
loop over all the vectors ?

2) AIO changes need careful review & could be cleaned up further.
Zack, can you take a look at those ?

3) Ben's suggestion of kernel iovec to hold precomputed information
(like total iolen) instead of computing every time.

Thanks,
Badari