> On Dec 11, 2018, at 9:02 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > Can we also kill off rpcrdma_memreg_ops now? Indirect calls are > suprisingly expensive, especially in our post-spectre world, and > xprtrdma always seemed a little odd with this supper generic > abstraction. Yep, I'm considering replacing those indirect calls. However, note that the RPC layer is full of them too, as is the DMA operations that are used by xprtrdma. I'm not sure it will make much of a difference. -- Chuck Lever
