Re: new helpers to clean up extent tree lookups V2

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On Mon, Nov 21, 2016 at 05:38:42PM +0100, Christoph Hellwig wrote:
> Now that Eric send out xfs_iext_count before I could get to it I need
> to get my other iext helpers out ASAP before running into another
> rebase :)
> 
> This series adds two new helpers that make iterating the extent list
> a lot cleaner.  They are the first step towards better abstracting out
> access to the extent list and thus allowing us to experiment with
> better data structures for it.  The next step is the manipulations
> in xfs_bmap_{add,del}_extent*, which will be more work than these
> helpers, but I have some of that in progress.
> 
> Changes since V1:
>  - incorporate review feedback from Brian (various minor items)

Looks reasonable to me, so for the whole series:
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

--D

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