[PATCH RFC v22 7/7] NFSD: Show state of courtesy client in client info

[Dai Ngo <dai.ngo@oracle.com>]

Update client_info_show to show state of courtesy client
and time since last renew.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
---
 fs/nfsd/nfs4state.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9b1134d823bb..4f45caead507 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2471,7 +2471,8 @@ static int client_info_show(struct seq_file *m, void *v)
 {
 	struct inode *inode = m->private;
 	struct nfs4_client *clp;
-	u64 clid;
+	u64 clid, hrs;
+	u32 mins, secs;
 
 	clp = get_nfsdfs_clp(inode);
 	if (!clp)
@@ -2479,10 +2480,19 @@ static int client_info_show(struct seq_file *m, void *v)
 	memcpy(&clid, &clp->cl_clientid, sizeof(clid));
 	seq_printf(m, "clientid: 0x%llx\n", clid);
 	seq_printf(m, "address: \"%pISpc\"\n", (struct sockaddr *)&clp->cl_addr);
-	if (test_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags))
+
+	if (clp->cl_state == NFSD4_COURTESY)
+		seq_puts(m, "status: courtesy\n");
+	else if (clp->cl_state == NFSD4_EXPIRABLE)
+		seq_puts(m, "status: expirable\n");
+	else if (test_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags))
 		seq_puts(m, "status: confirmed\n");
 	else
 		seq_puts(m, "status: unconfirmed\n");
+	hrs = div_u64_rem(ktime_get_boottime_seconds() - clp->cl_time,
+				3600, &secs);
+	mins = div_u64_rem((u64)secs, 60, &secs);
+	seq_printf(m, "time since last renew: %llu:%02u:%02u\n", hrs, mins, secs);
 	seq_printf(m, "name: ");
 	seq_quote_mem(m, clp->cl_name.data, clp->cl_name.len);
 	seq_printf(m, "\nminor version: %d\n", clp->cl_minorversion);
-- 
2.9.5