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Message-ID: <20070118042731.GA15859@in.ibm.com>
Date:	Thu, 18 Jan 2007 09:57:31 +0530
From:	Suparna Bhattacharya <suparna@...ibm.com>
To:	Christoph Hellwig <hch@...radead.org>, pbadari@...ibm.com
Cc:	linux-aio@...ck.org, linux-kernel@...r.kernel.org
Subject: Vectored AIO breakage for sockets and pipes ?


The call to aio_advance_iovec() in aio_rw_vect_retry() becomes problematic
when it comes to pipe and socket operations which internally modify/advance
the iovec themselves. As a result AIO writes to sockets fail to return
the correct result. 

I'm not sure what the best way to fix this is. One option is to always make
a copy of the iovec and pass that down. Any other thoughts ?

Regards
Suparna

-- 
Suparna Bhattacharya (suparna@...ibm.com)
Linux Technology Center
IBM Software Lab, India

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