[PATCH v4 0/2] add rpc_status handler in nfsd debug filesystem

[Lorenzo Bianconi <lorenzo@kernel.org>]

Introduce rpc_status entry in nfsd debug filesystem in order to dump
pending RPC requests debugging information.

Changes since v3:
- introduce rq_status_counter in order to detect if the RPC request is
  pending and RPC info are stable
- rely on __svc_print_addr to dump IP info

Changes since v2:
- minor changes in nfsd_rpc_status_show output

Changes since v1:
- rework nfsd_rpc_status_show output

Changes since RFCv1:
- riduce time holding nfsd_mutex bumping svc_serv refcoung in
  nfsd_rpc_status_open()
- dump rqstp->rq_stime
- add missing kdoc for nfsd_rpc_status_open()

Link: https://bugzilla.linux-nfs.org/show_bug.cgi?id=366

Lorenzo Bianconi (2):
  SUNRPC: add verbose parameter to __svc_print_addr()
  NFSD: add rpc_status entry in nfsd debug filesystem

 fs/nfsd/nfs4proc.c              |   4 +-
 fs/nfsd/nfsctl.c                |  10 +++
 fs/nfsd/nfsd.h                  |   2 +
 fs/nfsd/nfssvc.c                | 122 ++++++++++++++++++++++++++++++++
 include/linux/sunrpc/svc.h      |   1 +
 include/linux/sunrpc/svc_xprt.h |  12 ++--
 net/sunrpc/svc.c                |   2 +-
 net/sunrpc/svc_xprt.c           |   2 +-
 8 files changed, 144 insertions(+), 11 deletions(-)

-- 
2.41.0