On Tue, Jan 31, 2017 at 01:52:42PM -0500, Chuck Lever wrote: > These are largely clean-ups, except for the last patch. Switching > completion polling from soft IRQ to a worker thread has a few > benefits: > > - svcrdma's completion handlers invoke svc_xprt_put(). We discovered > recently svc_xprt_put() is supposed to be called only in a process > context. This will become more important when NFS/RDMA supports > multi-path. > > - eventually we'd like to allocate pages for RDMA Read in the > completion handler, and not defer RDMA Read to svc_rdma_recvfrom. > Using GFP_KERNEL can sleep, which is not allowed in soft IRQ > context. > > - several places where BH's are disabled can be converted to simple > spin_locks. > > Bruce, would you consider these for v4.11? Sure, looks fine to me. Looks like you had a minor edit or two from Christoph's review, so I'm assuming you'll resend. --b. > > > Available in the "nfsd-rdma-for-4.11" topic branch of this git repo: > > git://git.linux-nfs.org/projects/cel/cel-2.6.git > > > Or for browsing: > > http://git.linux-nfs.org/?p=cel/cel-2.6.git;a=log;h=refs/heads/nfsd-rdma-for-4.11 > > > Changes since v1: > - Rebased on v4.10-rc6 > > --- > > Chuck Lever (7): > svcrdma: Another sendto chunk list parsing update > svcrdma: Clean up RPC-over-RDMA Reply header encoder > svcrdma: Clean up RPC-over-RDMA Call header decoder > svcrdma: Clean up backchannel send header encoding > svcrdma: Remove unused sc_dto_q field > svcrdma: Combine list fields in struct svc_rdma_op_ctxt > svcrdma: Poll CQs in "workqueue" mode > > > include/linux/sunrpc/rpc_rdma.h | 9 + > include/linux/sunrpc/svc_rdma.h | 17 + > net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 17 + > net/sunrpc/xprtrdma/svc_rdma_marshal.c | 320 +++++++++++----------------- > net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 20 +- > net/sunrpc/xprtrdma/svc_rdma_sendto.c | 13 - > net/sunrpc/xprtrdma/svc_rdma_transport.c | 61 +++-- > 7 files changed, 199 insertions(+), 258 deletions(-) > > -- > Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
