Re: [patch] elv_former_request reversion

From: Jens Axboe (axboe@suse.de)
Date: Sun Feb 16 2003 - 04:32:44 EST


On Sat, Feb 15 2003, Andrew Morton wrote:
>
> This morning's fix for elv_former_request() is causing oopses all over the
> place in the IO scheduler.
>
> Jens, remember that I did try that fix a while ago, and the same happened.
>
> I believe it has exposed a new problem at the
> __make_request/attempt_front_merge level: if attempt_front_merge()
> actually succeeds, the wrong request gets freed up in
> elv_merged_request().
>
> It may be best to back this change out until it can be fixed up for
> real.

Yes agreed, I had forgotten about that point... Will fix.

-- 
Jens Axboe

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