On Mon, Aug 06, 2018 at 09:10:40AM -0700, Christoph Hellwig wrote:

On Mon, Aug 06, 2018 at 07:06:05PM +0300, Michael S. Tsirkin wrote:

quoted

quoted

I've done something very similar in the thread I posted a few years
ago.

Right so that was before spectre where a virtual call was cheaper :(

Sorry, I meant days, not years.  The whole point of the thread was the
slowdowns due to retpolines, which are the software spectre mitigation.

Oh that makes sense then. Could you post a pointer pls so
this patchset is rebased on top (there are things to
change about 4/4 but 1-3 could go in if they don't add
overhead)?

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MST