Avoiding the dentry d_lock on final dput(), part deux: transactional memory

[Linus Torvalds]

On Mon, Sep 30, 2013 at 1:01 PM, Waiman Long <waiman.long at hp.com> wrote:
>
> I think this patch is worth a trial if relevant hardware is more widely
> available. The TSX code certainly need to be moved to an architecture
> specific area and should be runtime enabled using a static key. We also need
> more TSX support infrastructure in place first.

I think we can pick that up from Andi's patches, he should have that.
Although that did have very x86-specific naming (ie "xbegin"). And I
don't think he used "asm goto" to quite the same advantage as this -
and I think we do want to make sure that the overhead is minimal.

                  Linus