Add LTTng build infrastructure

Signed-off-by: Jim Lieb <lieb@sea-troll.net>
Add LTTng tracing as logging option

Derived from original work by Amit Margalit amitm@il.ibm.com

Signed-off-by: Jim Lieb <lieb@sea-troll.net>
Add LTTng tracing of nfs rpc

Initial trace points are the start and end of rpc_execute()

Signed-off-by: Jim Lieb <lieb@sea-troll.net>
Add tracing for individual nfs ops

Expand nfs_rcp by defiuing and adding some new tracepoints

Signed-off-by: Jim Lieb <lieb@sea-troll.net>
Add README and documentation for LTTng usage

Signed-off-by: Jim Lieb <lieb@sea-troll.net>
Make Ganesha version searchable in binary with strings

Also adjust the output of ganesha.nfsd -@

And add -v as an option that may be more expected

The following command will dump the version string:

strings /usr/bin/ganesha.nfsd | grep 'Ganesha Version'

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Merge remote-tracking branch 'lieb/for_dev-5' into next

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Merge remote-tracking branch 'ganltc/for-V2.2-dev-5' into next

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
V2.2-dev-5

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>