NFSD: Add cb_lost tracepoint

Provide more clarity about when the callback channel is in trouble.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever 2021-05-14 15:56:43 -04:00 • committed by J. Bruce Fields
commit 806d65b617
2 changed files with 3 additions and 0 deletions