Re: [Patch 2/2] Retry based aio read - filesystem read changes

From: Suparna Bhattacharya (suparna@in.ibm.com)
Date: Sun Apr 06 2003 - 22:51:13 EST

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On Mon, Mar 31, 2003 at 02:16:29PM -0500, 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.

Do you also have a patch for handling semaphore operations ?

Regards
Suparna

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

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