> This breaks how userspace wants to use poll, ie if you return anything > less than what I asked for then that means there is no more work to > do. Apps make this assumption, and is a reasonable thing to > do. Otherwise apps need a dummy call to ibv_poll to avoid races.
OIC. forgot about that. hmm... > So if you are worried about how many times ib_poll_cq is called then > bound the kzalloc size and wrap the whole thing in a loop, but > realistically I have to think the performance trade off of > kzalloc/free vs calling ib_poll more often is not entirely obvious. That's true... maybe doing things one at a time but avoiding the allocs is the right tradeoff. > Who uses this path anyhow? AFAICT, cxgb3, cxgb4, nes, ipath and qib. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
