LU-18959 misc: Mark symbols static to prevent namespace pollution

LU-18959 misc: Mark symbols static to prevent namespace pollution

Sparse highlighted a number of symbols as not used outside
the file they are defined in. And a couple where they were used,
but the proper header was not included, fix these issues:

libcfs/libcfs/tracefile.c:37 sparse warning: symbol 'cfs_trace_data' was not declared. Should it be static?
libcfs/libcfs/tracefile.c:49 sparse warning: symbol 'tctl_task' was not declared. Should it be static?
lnet/lnet/lnet_rdma.c:24 sparse warning: symbol 'nvfs_shutdown' was not declared. Should it be static?
lnet/lnet/lnet_rdma.c:25 sparse warning: symbol 'nvfs_ops' was not declared. Should it be static?
lnet/lnet/lnet_rdma.c:26 sparse warning: symbol 'nvfs_n_ops' was not declared. Should it be static?
lustre/ldlm/ldlm_lockd.c:44 sparse warning: symbol 'ldlm_kobj' was not declared. Should it be static?
lustre/lfsck/lfsck_namespace.c:6916 sparse warning: symbol 'lfsck_namespace_assistant_ops' was not declared. Should it be static?
lustre/lmv/lproc_lmv.c:409 sparse warning: symbol 'lprocfs_lmv_obd_vars' was not declared. Should it be static?
lustre/lod/lod_dev.c:160 sparse warning: symbol 'lod_txn_callback_kmem' was not declared. Should it be static?
lustre/mdc/lproc_mdc.c:572 sparse warning: symbol 'ldebugfs_mdc_obd_vars' was not declared. Should it be static?
lustre/mdc/mdc_batch.c:189 sparse warning: symbol 'mdc_update_interpreters' was not declared. Should it be static?
lustre/mdc/mdc_dev.c:1672 sparse warning: symbol 'mdc_lu_ops' was not declared. Should it be static?
lustre/mdt/mdt_mds.c:63 sparse warning: symbol 'mds_max_io_threads' was not declared. Should it be static?
lustre/mgc/lproc_mgc.c:39 sparse warning: symbol 'ldebugfs_mgc_obd_vars' was not declared. Should it be static?
lustre/obdclass/hash.c:98 sparse warning: symbol 'cfs_rehash_wq' was not declared. Should it be static?
lustre/obdclass/jobid.c:33 sparse warning: symbol 'jobid_hash_lock' was not declared. Should it be static?
lustre/obdclass/kernelcomm.c:273 sparse warning: symbol 'stats_params' was not declared. Should it be static?
lustre/obdclass/lprocfs_status.c:2610 sparse warning: symbol 'cksum_name' was not declared. Should it be static?
lustre/obdclass/lprocfs_status_server.c:540 sparse warning: symbol 'ldebugfs_obd_exports_vars' was not declared. Should it be static?
lustre/obdclass/lu_object.c:1883 sparse warning: symbol 'lu_env_rhash' was not declared. Should it be static?
lustre/obdclass/scrub.c:464 sparse warning: symbol 'scrub_status_names' was not declared. Should it be static?
lustre/obdclass/scrub.c:475 sparse warning: symbol 'scrub_flags_names' was not declared. Should it be static?
lustre/obdclass/scrub.c:483 sparse warning: symbol 'scrub_param_names' was not declared. Should it be static?
lustre/ofd/ofd_oss.c:28 sparse warning: symbol 'oss_max_threads' was not declared. Should it be static?
lustre/osc/lproc_osc.c:664 sparse warning: symbol 'ldebugfs_osc_obd_vars' was not declared. Should it be static?
lustre/osd-ldiskfs/osd_handler.c:81 sparse warning: symbol 'ldiskfs_flush_descriptors_seconds' was not declared. Should it be static?
lustre/osd-ldiskfs/osd_handler.c:84 sparse warning: symbol 'ldiskfs_delayed_unlink_blocks' was not declared. Should it be static?
lustre/osd-ldiskfs/osd_handler.c:90 sparse warning: symbol 'osd_itea_cachep' was not declared. Should it be static?
lustre/osd-ldiskfs/osd_lproc.c:810 sparse warning: symbol 'ldebugfs_osd_obd_vars' was not declared. Should it be static?
lustre/osd-zfs/osd_lproc.c:384 sparse warning: symbol 'ldebugfs_osd_obd_vars' was not declared. Should it be static?
lustre/ptlrpc/nodemap_lproc.c:23 sparse warning: symbol 'nodemap_root' was not declared. Should it be static?
lustre/ptlrpc/nrs_tbf.c:2284 sparse warning: symbol 'nrs_tbf_opcode_ops' was not declared. Should it be static?
lustre/ptlrpc/nrs_tbf.c:2598 sparse warning: symbol 'nrs_tbf_uid_ops' was not declared. Should it be static?
lustre/ptlrpc/nrs_tbf.c:2611 sparse warning: symbol 'nrs_tbf_gid_ops' was not declared. Should it be static?
lustre/quota/lquota_lib.c:23 sparse warning: symbol 'lquota_caches' was not declared. Should it be static?
lustre/quota/qsd_lib.c:39 sparse warning: symbol 'qsd_caches' was not declared. Should it be static?
lustre/target/tgt_grant.c:61 sparse warning: symbol 'lbug_on_grant_miscount' was not declared. Should it be static?
lustre/target/tgt_handler.c:1576 sparse warning: symbol 'tgt_lfsck_in_notify' was not declared. Should it be static?
lustre/target/tgt_main.c:39 sparse warning: symbol 'sync_lock_cancel_show' was not declared. Should it be static?
lustre/target/tgt_main.c:72 sparse warning: symbol 'sync_lock_cancel_store' was not declared. Should it be static?

Change-Id: Ibdf617161fe481ddd6a2905e60890cb23ed59733
Test-Parameters: trivial
Signed-off-by: Oleg Drokin <green@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/59081
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Timothy Day <timday@amazon.com>