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Date: Fri, 9 Feb 2007 11:11:52 +0100 (CET)
From: Jiri Kosina <jikos@jikos.cz>
To: "Ananiev, Leonid I" <leonid.i.ananiev@intel.com>
cc: suparna@in.ibm.com, Andrew Morton <akpm@linux-foundation.org>,
       linux-kernel@vger.kernel.org, linux-aio <linux-aio@kvack.org>,
       Zach Brown <zach.brown@oracle.com>,
       Chris Mason <chris.mason@oracle.com>,
       Badari Pulavarty <pbadari@us.ibm.com>, Jan Kara <jack@suse.cz>
Subject: RE: [PATCH] aio: fix kernel bug when page is  temporally busy
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On Fri, 9 Feb 2007, Ananiev, Leonid I wrote:

> I have used EIOCBRETRY in the patch to minimize source code modification 
> only. It is notable that EIOCBRETRY is never set in kernel, but tested 
> only.

There is indeed something strange in aio in 2.6.20 (and maybe older) - for 
example do_generic_mapping_read() gets stuck inside lock_page() in the 
situation when the page is not up-to-date, instead of returning properl 
error to aio_run_cb().

Or does it work in some other way and I get it wrong?

-- 
Jiri Kosina