Hi Jason, Sagi- Here's an updated version of last week's patches to implement strong Send Queue accounting and Send completion batching in the Linux RPC-over-RDMA client implementation. I've addressed Jason's concern about patch description language and Sagi's concern about leaking data in Send buffers that are re-used after RPC completion, in addition to a number of smaller clean ups. Also available as the first several commits in this topic branch: http://git.linux-nfs.org/?p=cel/cel-2.6.git;a=shortlog;h=refs/heads/nfs-rdma-for-4.15 Changes since RFC: * Replace "completion heartbeat" language in patch descriptions and code comments * Ensure RPC completion waits for pages to be unmapped * Remove incorrect clean up in rpcrdma_sendctxs_destroy * Further clean up of rl_mapped_sges * Create separate patch (description) for change in rpcrdma_prepare_hdr_sges * Various micro-optimizations of branches and loops --- Chuck Lever (7): xprtrdma: Clean up SGE accounting in rpcrdma_prepare_msg_sges() xprtrdma: Change return value of rpcrdma_prepare_send_sges() xprtrdma: Add data structure to manage RDMA Send arguments xprtrdma: "Unoptimize" rpcrdma_prepare_hdr_sges() xprtrdma: Manage RDMA Send arguments via lock-free circular queue xprtrdma: RPC completion should wait for Send completion xprtrdma: Remove atomic send completion counting net/sunrpc/xprtrdma/backchannel.c | 6 + net/sunrpc/xprtrdma/frwr_ops.c | 8 - net/sunrpc/xprtrdma/rpc_rdma.c | 119 +++++++++++++++------- net/sunrpc/xprtrdma/transport.c | 7 + net/sunrpc/xprtrdma/verbs.c | 198 +++++++++++++++++++++++++++++++++++-- net/sunrpc/xprtrdma/xprt_rdma.h | 76 +++++++++----- 6 files changed, 320 insertions(+), 94 deletions(-) -- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
