Re: [PATCH] xfs: revert "xfs: factor rmap btree size into the indlen calculations"

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On Sat, Sep 02, 2017 at 10:06:26AM -0700, Darrick J. Wong wrote:
> In commit fd26a88093ba we added a worst case estimate for rmapbt blocks
> needed to satisfy the block mapping request.  Since then, we added the
> ability to reserve enough space in each AG such that we should never run
> out of blocks to grow the rmapbt, which makes this calculation
> unnecessary.  Revert the commit because it makes the extra delalloc
> indlen accounting unnecessary and incorrect.

Do you remember any details of why we added it and what is supposed
to fix it?  I have memories of various issues in this area, but I
can't remember the details.
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