[PATCH 00/73] Lustre y2038 time cleanups and unused code removal

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From: Oleg Drokin <green@xxxxxxxxxxxxxx>

This big set of patches started with Arnd Bergmann doing some
y2038 proofing on the Lustre code and then it was noticed that some
parts f the code are not really needed on the client so some of the
unused functionality (both time related and not) piled on.

I did some chopping of the biggest patches to make them smaller,
but some of them are still pretty big (doing huge net deletions
at that).

I am sending this now to get my local tree back under control so
that more stuff could be deleted as it's being found.
Overall this set removes about 10k lines from Lustre.

Please consider.

Arnd Bergmann (39):
  staging/lustre: use jiffies for lp_last_query times
  staging/lustre: use 64-bit inode timestamps internally
  staging/lustre: obd: remove unused data structures
  staging/lustre: tracefile: document seconds overflow
  staging/lustre: use 64-bit timestamps in debugfs output
  staging/lustre: use time64_t for l_last_activity
  staging/lustre: use ktime_t for calculating elapsed time
  staging/lustre: change rq_at_index type
  staging/lustre: avoid unnecessary timeval conversion
  staging/lustre: use 64-bit time LNetCtl()
  staging/lustre: use 'long' return type for cfs_duration_sec()
  staging/lustre: use jiffies_to_*() instead of cfs_duration_usec
  staging/lustre: use 64-bit ibn_incarnation computation
  staging/lustre: use 64-bit times for cfs_srand seed
  staging/lustre: use 64-bit computation in s2dhms()
  staging/lustre: use 64-bit timestamps for selftest
  staging/lustre: use 64-bit time for pl_recalc
  staging/lustre: use 64-bit time for debugfs output
  staging/lustre: use 64-bit time for adaptive timeout
  staging/lustre: use 64-bit llite debugfs timestamps
  staging/lustre: use 64-bit times for ksnd_connd
  staging/lustre: use 64-bit time for ni_last_alive
  staging/lustre: use 64-bit time for selftest
  staging/lustre: use 64-bit times in ptlrpc_enc_page_pool
  staging/lustre: use 64-bit times in debug print
  staging/lustre: use 64-bit times in another debug print
  staging/lustre: use 64-bit timestamps for mdc
  staging/lustre: use 64-bit times for ptlrpc sec expiry
  staging/lustre: use 64-bit times for ptlrpc_sec
  staging/lustre: use 64-bit times for request times
  staging/lustre: remove the ping evictor
  staging/lustre/lov: remove a bit of dead code
  staging/lustre: remove wrappers for timer functions
  staging/lustre: remove unused time handling functions
  staging/lustre: remove class_disconnect_export_list
  staging/lustre: remove CFS_TIME_T definition
  staging/lustre/llog: remove unused server code
  staging/lustre: remove dt_object implementation
  staging/lustre: partially use time64_t for capa expiry

Oleg Drokin (34):
  staging/lustre/ptlrpc: Remove ptlrpc_update_export_timer()
  staging/lustre/obdclass: Remove unused lprocfs_wr_evict_client
  staging/lustre: Remove obd_export_evict_by_nid/uuid
  staging/lustre/obdclass: Remove unused lprocfs_alloc/free_obd_stats
  staging/lustre: Remove unused lprocfs_alloc/free_md_stats
  staging/lustre: Remove unused lprocfs_init_ldlm_stats
  staging/lustre: Remove unused debugfs/procfs helpers
  staging/lustre: Remove mds/ost capabilities support
  staging/lustre: Remove unused target_print_req()
  staging/lustre: Remove unused lustre_acl_xattr_merge2posix()
  staging/lustre/ptlrpc: Remove server-specific health checks
  staging/lustre: Remove unused req_capsule_server_grow
  staging/lustre: Remove unused reply state batches code
  staging/lustre: Remove high-priority request callbacks
  staging/lustre: Remove unused statfs_pack()
  staging/lustre: Remove unused ptlrpcd_add_rqset()
  staging/lustre: Remove unused functions and definitions from cl_object
  staging/lustre: Remove unused lu_object functions.
  staging/lustre/ldlm: Remove unused round_timeout function
  staging/lustre/obdclass: Remove unused functions from genops.c
  staging/lustre: Remove unused function class_handle_hash_back()
  staging/lustre: Remove unused function server_name2svname()
  staging/lustre/obdclass: Drop unused code from obdo.c
  staging/lustre/ptlrpc: Drop unused client code
  staging/lustre/ptlrpc: secure wrapping code cleanup
  staging/lustre: Drop unused obdo_from_la() and la_from_obdo()
  staging/lustre: remove lots of dead code
  staging/lustre/fid: Remove server fid function declarations
  staging/lustre/fid: seq_client_init/fini don't need to be exported
  staging/lustre/fid: Remove unused seq_client_get_seq function
  staging/lustre/fid: Get rid of lcs_srv in lu_client_seq
  staging/lustre/fid: Remove unused struct lu_server_seq
  staging/lustre/obdclass: Remove unused nid_hash
  staging/lustre: Remove server-only recovery-related bits

 .../staging/lustre/include/linux/libcfs/libcfs.h   |    3 -
 .../lustre/include/linux/libcfs/libcfs_debug.h     |    1 +
 .../lustre/include/linux/libcfs/libcfs_prim.h      |   12 -
 .../lustre/include/linux/libcfs/libcfs_time.h      |   49 -
 .../lustre/include/linux/libcfs/linux/linux-time.h |   35 +-
 .../staging/lustre/include/linux/lnet/lib-lnet.h   |    2 +-
 .../staging/lustre/include/linux/lnet/lib-types.h  |    2 +-
 .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c    |    7 +-
 .../staging/lustre/lnet/klnds/socklnd/socklnd.c    |    2 +-
 .../staging/lustre/lnet/klnds/socklnd/socklnd.h    |    6 +-
 .../staging/lustre/lnet/klnds/socklnd/socklnd_cb.c |    8 +-
 drivers/staging/lustre/lnet/lnet/api-ni.c          |    6 +-
 drivers/staging/lustre/lnet/lnet/config.c          |    2 +-
 drivers/staging/lustre/lnet/lnet/lib-eq.c          |    9 +-
 drivers/staging/lustre/lnet/lnet/lib-move.c        |    4 +-
 drivers/staging/lustre/lnet/lnet/router.c          |   10 +-
 drivers/staging/lustre/lnet/lnet/router_proc.c     |    2 +-
 drivers/staging/lustre/lnet/selftest/brw_test.c    |    6 +-
 drivers/staging/lustre/lnet/selftest/conctl.c      |    2 +-
 drivers/staging/lustre/lnet/selftest/conrpc.c      |   17 +-
 drivers/staging/lustre/lnet/selftest/console.c     |    2 +-
 drivers/staging/lustre/lnet/selftest/console.h     |    2 +-
 drivers/staging/lustre/lnet/selftest/framework.c   |    9 +-
 drivers/staging/lustre/lnet/selftest/ping_test.c   |   16 +-
 drivers/staging/lustre/lnet/selftest/rpc.c         |    9 +-
 drivers/staging/lustre/lnet/selftest/selftest.h    |    2 +-
 drivers/staging/lustre/lnet/selftest/timer.c       |   14 +-
 drivers/staging/lustre/lnet/selftest/timer.h       |    2 +-
 drivers/staging/lustre/lustre/fid/fid_request.c    |  132 +-
 drivers/staging/lustre/lustre/fid/lproc_fid.c      |    3 -
 drivers/staging/lustre/lustre/fld/fld_cache.c      |    1 -
 drivers/staging/lustre/lustre/fld/fld_internal.h   |    3 -
 drivers/staging/lustre/lustre/fld/fld_request.c    |    1 -
 drivers/staging/lustre/lustre/fld/lproc_fld.c      |    1 -
 drivers/staging/lustre/lustre/include/cl_object.h  |   36 +-
 drivers/staging/lustre/lustre/include/dt_object.h  | 1496 --------------------
 drivers/staging/lustre/lustre/include/lclient.h    |    3 +-
 .../staging/lustre/lustre/include/lprocfs_status.h |   37 +-
 drivers/staging/lustre/lustre/include/lu_object.h  |   27 -
 .../lustre/lustre/include/lustre/lustre_idl.h      |   33 +-
 .../lustre/lustre/include/lustre/lustre_user.h     |    2 -
 .../staging/lustre/lustre/include/lustre_capa.h    |  305 ----
 .../staging/lustre/lustre/include/lustre_debug.h   |    1 -
 .../staging/lustre/lustre/include/lustre_disk.h    |    2 -
 drivers/staging/lustre/lustre/include/lustre_dlm.h |    6 +-
 .../staging/lustre/lustre/include/lustre_eacl.h    |    4 -
 .../staging/lustre/lustre/include/lustre_export.h  |   37 +-
 drivers/staging/lustre/lustre/include/lustre_fid.h |   94 --
 drivers/staging/lustre/lustre/include/lustre_fld.h |    4 -
 .../staging/lustre/lustre/include/lustre_handles.h |    1 -
 .../staging/lustre/lustre/include/lustre_import.h  |   15 +-
 drivers/staging/lustre/lustre/include/lustre_lib.h |    1 -
 drivers/staging/lustre/lustre/include/lustre_log.h |   74 +-
 drivers/staging/lustre/lustre/include/lustre_mds.h |    5 -
 drivers/staging/lustre/lustre/include/lustre_net.h |   68 +-
 .../staging/lustre/lustre/include/lustre_param.h   |    6 -
 .../lustre/lustre/include/lustre_req_layout.h      |    7 -
 drivers/staging/lustre/lustre/include/lustre_sec.h |   22 +-
 drivers/staging/lustre/lustre/include/obd.h        |  170 +--
 drivers/staging/lustre/lustre/include/obd_class.h  |   92 +-
 drivers/staging/lustre/lustre/lclient/lcommon_cl.c |   11 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lib.c      |    1 -
 drivers/staging/lustre/lustre/ldlm/ldlm_lock.c     |    2 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c    |    5 -
 drivers/staging/lustre/lustre/ldlm/ldlm_pool.c     |   30 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_request.c  |   33 +-
 drivers/staging/lustre/lustre/libcfs/debug.c       |    4 +-
 .../lustre/lustre/libcfs/linux/linux-prim.c        |   64 -
 .../lustre/lustre/libcfs/linux/linux-tracefile.c   |   10 +-
 drivers/staging/lustre/lustre/libcfs/module.c      |    3 -
 drivers/staging/lustre/lustre/llite/Makefile       |    2 +-
 drivers/staging/lustre/lustre/llite/file.c         |   42 +-
 drivers/staging/lustre/lustre/llite/llite_capa.c   |  661 ---------
 .../staging/lustre/lustre/llite/llite_internal.h   |   29 +-
 drivers/staging/lustre/lustre/llite/llite_lib.c    |   79 +-
 drivers/staging/lustre/lustre/llite/lproc_llite.c  |   24 +-
 drivers/staging/lustre/lustre/llite/namei.c        |   10 +-
 drivers/staging/lustre/lustre/llite/remote_perm.c  |    5 +-
 drivers/staging/lustre/lustre/llite/rw.c           |    8 -
 drivers/staging/lustre/lustre/llite/statahead.c    |   32 +-
 drivers/staging/lustre/lustre/llite/super25.c      |   20 +-
 drivers/staging/lustre/lustre/llite/vvp_io.c       |    4 +-
 drivers/staging/lustre/lustre/llite/vvp_object.c   |   12 +-
 drivers/staging/lustre/lustre/llite/xattr.c        |   10 +-
 drivers/staging/lustre/lustre/lmv/lmv_obd.c        |   53 +-
 drivers/staging/lustre/lustre/lov/lov_io.c         |    2 -
 drivers/staging/lustre/lustre/lov/lov_obd.c        |   24 +-
 drivers/staging/lustre/lustre/lov/lov_request.c    |    2 -
 drivers/staging/lustre/lustre/mdc/mdc_internal.h   |   18 +-
 drivers/staging/lustre/lustre/mdc/mdc_lib.c        |   48 +-
 drivers/staging/lustre/lustre/mdc/mdc_locks.c      |   39 +-
 drivers/staging/lustre/lustre/mdc/mdc_reint.c      |   24 +-
 drivers/staging/lustre/lustre/mdc/mdc_request.c    |  235 +--
 drivers/staging/lustre/lustre/obdclass/Makefile    |    2 +-
 drivers/staging/lustre/lustre/obdclass/acl.c       |  119 --
 drivers/staging/lustre/lustre/obdclass/capa.c      |  421 ------
 drivers/staging/lustre/lustre/obdclass/cl_io.c     |   65 -
 drivers/staging/lustre/lustre/obdclass/cl_lock.c   |   26 -
 drivers/staging/lustre/lustre/obdclass/cl_object.c |   41 -
 drivers/staging/lustre/lustre/obdclass/class_obd.c |    3 -
 drivers/staging/lustre/lustre/obdclass/debug.c     |   10 -
 drivers/staging/lustre/lustre/obdclass/dt_object.c | 1053 --------------
 drivers/staging/lustre/lustre/obdclass/genops.c    |  466 +-----
 .../lustre/lustre/obdclass/linux/linux-obdo.c      |  137 --
 .../lustre/lustre/obdclass/linux/linux-sysctl.c    |    4 -
 drivers/staging/lustre/lustre/obdclass/llog.c      |  546 +------
 drivers/staging/lustre/lustre/obdclass/llog_cat.c  |  574 --------
 .../staging/lustre/lustre/obdclass/llog_internal.h |   10 -
 drivers/staging/lustre/lustre/obdclass/llog_obd.c  |   30 -
 .../lustre/lustre/obdclass/lprocfs_status.c        |  366 +----
 drivers/staging/lustre/lustre/obdclass/lu_object.c |  241 ----
 .../lustre/lustre/obdclass/lustre_handles.c        |   19 +-
 .../staging/lustre/lustre/obdclass/obd_config.c    |  385 +----
 drivers/staging/lustre/lustre/obdclass/obd_mount.c |   27 -
 drivers/staging/lustre/lustre/obdclass/obdo.c      |  170 ---
 .../staging/lustre/lustre/obdclass/statfs_pack.c   |   14 -
 .../staging/lustre/lustre/obdecho/echo_client.c    |   16 +-
 drivers/staging/lustre/lustre/osc/lproc_osc.c      |   16 +-
 drivers/staging/lustre/lustre/osc/osc_io.c         |    8 +-
 drivers/staging/lustre/lustre/osc/osc_request.c    |   65 +-
 drivers/staging/lustre/lustre/ptlrpc/client.c      |  143 +-
 drivers/staging/lustre/lustre/ptlrpc/events.c      |    8 +-
 drivers/staging/lustre/lustre/ptlrpc/import.c      |   25 +-
 drivers/staging/lustre/lustre/ptlrpc/layout.c      |  126 --
 drivers/staging/lustre/lustre/ptlrpc/llog_client.c |   36 -
 .../staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c    |   95 +-
 drivers/staging/lustre/lustre/ptlrpc/niobuf.c      |   13 +-
 drivers/staging/lustre/lustre/ptlrpc/nrs.c         |  123 --
 .../staging/lustre/lustre/ptlrpc/pack_generic.c    |  203 +--
 drivers/staging/lustre/lustre/ptlrpc/pinger.c      |  158 +--
 .../staging/lustre/lustre/ptlrpc/ptlrpc_internal.h |    9 -
 drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c     |   42 -
 drivers/staging/lustre/lustre/ptlrpc/sec.c         |  144 +-
 drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c    |  352 +----
 drivers/staging/lustre/lustre/ptlrpc/sec_config.c  |   50 +-
 drivers/staging/lustre/lustre/ptlrpc/sec_gc.c      |   21 +-
 drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c   |    4 +-
 drivers/staging/lustre/lustre/ptlrpc/service.c     |  502 ++-----
 138 files changed, 533 insertions(+), 10831 deletions(-)
 delete mode 100644 drivers/staging/lustre/lustre/include/dt_object.h
 delete mode 100644 drivers/staging/lustre/lustre/include/lustre_capa.h
 delete mode 100644 drivers/staging/lustre/lustre/llite/llite_capa.c
 delete mode 100644 drivers/staging/lustre/lustre/obdclass/capa.c
 delete mode 100644 drivers/staging/lustre/lustre/obdclass/dt_object.c

-- 
2.1.0

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