RE: [PATCH] Don't change direction flags in struct request.

From: Hugh Daschbach
Date: Thu Mar 18 2010 - 22:21:42 EST


Hugh Daschbach [mailto:hdasch@xxxxxxxxxxxx] wrote:
> Mike Christie [mailto:michaelc@xxxxxxxxxxx] writes:

>> On 03/19/2010 12:31 AM, Hugh Daschbach wrote:
>>> The EMC multipath device handler should not change the I/O direction
>>> flags of its trespass command request.

...

>> Did you try the patch I linked to the last time you posted about this?

> I have not. When I read it, I believed it would fix the issue.

>> I think there should be a patch which fixes this problem here:
>> http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commitdiff;h=6c71dcb28ff9b63b814a0b76a256f5dae08d3e0d;hp=3a5b27bf6f29574d667230c7e76e4b83fe3014e0
>> I think it got into 2.6.34-rc1.

> Then I'll pull it and test it.

>> With that patch mode selects should get set up as writes.
>>
>> Does it work? If it does then I think we just need the attached cleanup
>> patch which removes the cmd_flags setting. The patch that got merged
>> fixed the problem of initializing the request properly, but it forgot to
>> remove the cmd_flags setting.

> Agree. I'll test it early next week and confirm.

I have pulled and tested this patch. It does fix my issue.

Thanks,
Hugh

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