lockd: address-family independent printable addresses

Knowing which source address is used for communicating with remote NLM
services can be helpful for debugging configuration problems on hosts
with multiple addresses.

Keep the dprintk debugging here, but adapt it so it displays AF_INET6
addresses properly.  There are also a couple of dprintk clean-ups as
well.

At some point we will aggregate the helpers that display presentation
format addresses into a single set of shared helpers.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index dbb87ab282e8..0691efbd0b34 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -61,6 +61,9 @@ struct nlm_host {
         struct list_head        h_granted;      /* Locks in GRANTED state */
         struct list_head        h_reclaim;      /* Locks in RECLAIM state */
         struct nsm_handle *     h_nsmhandle;    /* NSM status handle */
+
+        char                    h_addrbuf[48],  /* address eyecatchers */
+                                h_saddrbuf[48];
 };
 
 struct nsm_handle {
@@ -70,6 +73,7 @@ struct nsm_handle {
         struct sockaddr_in      sm_addr;
         unsigned int            sm_monitored : 1,
                                 sm_sticky : 1;  /* don't unmonitor */
+        char                    sm_addrbuf[48]; /* address eyecatcher */
 };
 
 /*