Re: [PATCH v5 0/6] Optimise 64-bit IOVA allocations

From: Joerg Roedel
Date: Wed Sep 27 2017 - 11:11:41 EST


On Thu, Sep 21, 2017 at 04:52:41PM +0100, Robin Murphy wrote:
> v4: https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1493704.html
>
> Right, this is hopefully the last version - I've put things back in a
> sensible order with the new additions at the end, so if they prove
> contentious the first 4 previously-tested patches can still get their
> time in -next. Patch #3 is updated to fix the bug brought to light by
> Tomasz, patch #6 includes the cleanup afterthought from v4, and I've
> nobbled one or two rogue whitespace changes I'd missed before.
>
> And the diffstat is still even more negative than before, hooray! For
> the whole series, the total code size reduction of alloc_iova() comes
> to just over 26% (AArch64 GCC 6.3.1).
>
> Robin.
>
>
> Robin Murphy (3):
> iommu/iova: Extend rbtree node caching
> iommu/iova: Add rbtree anchor node
> iommu/iova: Simplify cached node logic
>
> Zhen Lei (3):
> iommu/iova: Optimise rbtree searching
> iommu/iova: Optimise the padding calculation
> iommu/iova: Make dma_32bit_pfn implicit

Applied, thanks Robin.