Re: linux-next: manual merge of the block tree with the tree

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On 11/07/2013 01:25 PM, Kent Overstreet wrote:
> On Thu, Nov 07, 2013 at 01:20:26PM -0600, Dave Kleikamp wrote:
>> On 11/02/2013 03:50 PM, Dave Kleikamp wrote:
>>> On 11/01/2013 03:53 PM, Jens Axboe wrote:
>>
>>>> So we've three immediate options:
>>>>
>>>> 1) You base it on top of the block tree
>>>> 2) I carry the loop updates
>>>> 3) You hand Stephen a merge patch for the resulting merge of the two
>>>
>>> Attached is a merge patch and the merged loop.c. I'm having problems
>>> with the loop driver with both the block and my tree. I'll continue to
>>> look at that, but everything should build cleanly with this.
>>
>> Looking back, I obviously rushed the last patch out. This merge patch,
>> and the resulting loop.c, fix my problem. My code is working with Jens'
>> block tree now.
>>
>> Jens,
>> I ended up replacing a call to bio_iovec_idx() with __bvec_iter_bvec()
>> since the former was removed. It's not very elegant, but it works. I'm
>> open to suggestions on a cleaner fix, but it can wait until one or both
>> of these trees is merged.
> 
> No, that's definitely wrong. Read Documentation/block/biovecs.txt - you
> need to use either the new bio_iovec() or bio_iovec() iter. I can do the
> conversion later today.

I appreciate your help. The patchset requires that the iov_iter
structure can contain either a user-space iovec or a bio_vec, so that
the iov_iter can be passed down transparently into the filesystems. I'll
be happy any way we can get that to work.

Thanks,
Shaggy
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