nfsd: add more info to WARN_ON_ONCE on failed callbacks

Currently, you get the warning and stack trace, but nothing is printed
about the relevant error codes. Add that in.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Jeff Layton 2024-08-26 08:50:11 -04:00 • committed by Chuck Lever
commit e8581a9124