[PATCH v4 00/33] Possible NFSD patches for v5.8

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Hi Bruce-

To address merge conflicts with Anna's tree, I've rebased this
series on v5.7-rc6 plus ("SUNRPC: Split the xdr_buf event class").
Only two commits were changed by this rebase:

      SUNRPC: Move xpt_mutex into socket xpo_sendto methods
      SUNRPC: Add more svcsock tracepoints

Feel free to make use of this version, or ignore it. :-)


Available to view:
 https://git.linux-nfs.org/?p=cel/cel-2.6.git;a=shortlog;h=refs/heads/nfsd-5.8

Pull from this topic branch:
 git://git.linux-nfs.org/projects/cel/cel-2.6.git nfsd-5.8

Highlights of this series:
* Remove serialization of sending RPC/RDMA Replies
* Convert the TCP socket send path to use xdr_buf::bvecs (pre-requisite for RPC-on-TLS)
* Fix svcrdma backchannel sendto return code
* Convert a number of dprintk call sites to use tracepoints
* Fix the "suggest braces around empty body in an 'else' statement" warning


Changes since v3:
* Rebased on v5.7-rc6 + ("SUNRPC: Split the xdr_buf event class")

Changes since v2:
* Rebased on v5.7-rc6
* Fixed a logic error that left XPT_DATA unset on return from svc_tcp_recvfrom()
* Broke down "SUNRPC: Refactor svc_recvfrom()" to separate clean ups from logic changes
* Some superfluous clean-ups have been redacted
* Add separate tracepoints for error cases (eg, tcp_recv and tcp_recv_err)

Changes since v1:
* Rebased on v5.7-rc5+
* Re-organized the series so changes interesting to linux-rdma appear together
* Addressed sparse warnings found by the kbuild test robot
* Included an additional minor clean-up: removal of the unused SVCRDMA_DEBUG macro
* Clarified several patch descriptions

---

Chuck Lever (33):
      SUNRPC: Split the xdr_buf event class
      SUNRPC: Move xpt_mutex into socket xpo_sendto methods
      svcrdma: Clean up the tracing for rw_ctx_init errors
      svcrdma: Clean up handling of get_rw_ctx errors
      svcrdma: Trace page overruns when constructing RDMA Reads
      svcrdma: trace undersized Write chunks
      svcrdma: Fix backchannel return code
      svcrdma: Remove backchannel dprintk call sites
      svcrdma: Rename tracepoints that record header decoding errors
      svcrdma: Remove the SVCRDMA_DEBUG macro
      svcrdma: Displayed remote IP address should match stored address
      svcrdma: Add tracepoints to report ->xpo_accept failures
      SUNRPC: Remove kernel memory address from svc_xprt tracepoints
      SUNRPC: Tracepoint to record errors in svc_xpo_create()
      SUNRPC: Trace a few more generic svc_xprt events
      SUNRPC: Remove "#include <trace/events/skb.h>"
      SUNRPC: Add more svcsock tracepoints
      SUNRPC: Replace dprintk call sites in TCP state change callouts
      SUNRPC: Trace server-side rpcbind registration events
      SUNRPC: Rename svc_sock::sk_reclen
      SUNRPC: Restructure svc_tcp_recv_record()
      SUNRPC: Replace dprintk() call sites in TCP receive path
      SUNRPC: Refactor recvfrom path dealing with incomplete TCP receives
      SUNRPC: Clean up svc_release_skb() functions
      SUNRPC: Refactor svc_recvfrom()
      SUNRPC: Restructure svc_udp_recvfrom()
      SUNRPC: svc_show_status() macro should have enum definitions
      NFSD: Add tracepoints to NFSD's duplicate reply cache
      NFSD: Add tracepoints to the NFSD state management code
      NFSD: Add tracepoints for monitoring NFSD callbacks
      SUNRPC: Clean up request deferral tracepoints
      NFSD: Squash an annoying compiler warning
      NFSD: Fix improperly-formatted Doxygen comments


 fs/nfsd/nfs4callback.c                     |  37 +-
 fs/nfsd/nfs4proc.c                         |   7 +-
 fs/nfsd/nfs4state.c                        |  63 ++--
 fs/nfsd/nfscache.c                         |  57 +--
 fs/nfsd/nfsctl.c                           |  26 +-
 fs/nfsd/state.h                            |   7 -
 fs/nfsd/trace.h                            | 345 +++++++++++++++++
 include/linux/sunrpc/svc.h                 |   1 +
 include/linux/sunrpc/svc_rdma.h            |   6 +-
 include/linux/sunrpc/svc_xprt.h            |   6 +
 include/linux/sunrpc/svcsock.h             |   6 +-
 include/trace/events/rpcrdma.h             | 142 +++++--
 include/trace/events/sunrpc.h              | 419 +++++++++++++++++++--
 net/sunrpc/svc.c                           |  19 +-
 net/sunrpc/svc_xprt.c                      |  52 +--
 net/sunrpc/svcsock.c                       | 407 ++++++++++----------
 net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 121 ++----
 net/sunrpc/xprtrdma/svc_rdma_recvfrom.c    |  21 +-
 net/sunrpc/xprtrdma/svc_rdma_rw.c          |  92 ++---
 net/sunrpc/xprtrdma/svc_rdma_sendto.c      |  10 +-
 net/sunrpc/xprtrdma/svc_rdma_transport.c   |  55 ++-
 net/sunrpc/xprtsock.c                      |  12 +-
 22 files changed, 1321 insertions(+), 590 deletions(-)

--
Chuck Lever



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