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Date: Mon, 31 Mar 2003 11:07:55 -0800
From: Janet Morgan <janetmor@us.ibm.com>
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To: Benjamin LaHaise <bcrl@redhat.com>
CC: William Lee Irwin III <wli@holomorphy.com>, akpm@digeo.com,
       suparna@in.ibm.com, linux-aio@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [Patch 2/2] Retry based aio read - filesystem read changes
References: <20030305144754.A1600@in.ibm.com> <20030305150026.B1627@in.ibm.com> <20030305024254.7f154afc.akpm@digeo.com> <20030305174452.A1882@in.ibm.com> <3E8889B4.FB716506@us.ibm.com> <20030331191123.GB13178@holomorphy.com> <20030331141629.I20730@redhat.com>
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Benjamin LaHaise wrote:

> On Mon, Mar 31, 2003 at 11:11:23AM -0800, William Lee Irwin III wrote:
> > Can you tell whether these are due to hash collisions or contention on
> > the same page?
>
> No, they're most likely waiting for io to complete.
>
> To clean this up I've got a patch to move from aio_read/write with all the
> parameters to a single parameter based rw-specific iocb.  That makes the
> retry for read and write more ameniable to sharing common logic akin to the
> wtd_ ops, which we need at the very least for the semaphore operations.
>
>                 -ben
>

Can you post the patch you're referring to?

Thanks,
-Janet


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