linux-kernel - [PATCH 2/5] afs: Show all of a server's addresses in /proc/fs/afs/servers

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Message-ID: <152821483155.16494.6322560197888640951.stgit@warthog.procyon.org.uk>
Date:   Tue, 05 Jun 2018 17:07:11 +0100
From:   David Howells <dhowells@...hat.com>
To:     viro@...IV.linux.org.uk
Cc:     dhowells@...hat.com, linux-fsdevel@...r.kernel.org,
        linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] afs: Show all of a server's addresses in
 /proc/fs/afs/servers

Show all of a server's addresses in /proc/fs/afs/servers, placing the
second plus addresses on padded lines of their own.  The current address is
marked with a star.

Signed-off-by: David Howells <dhowells@...hat.com>
---

 fs/afs/proc.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 3512b9b66caf..0c3285c8db95 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -326,6 +326,7 @@ static int afs_proc_servers_show(struct seq_file *m, void *v)
 {
 	struct afs_server *server;
 	struct afs_addr_list *alist;
+	int i;
 
 	if (v == SEQ_START_TOKEN) {
 		seq_puts(m, "UUID                                 USE ADDR\n");
@@ -334,10 +335,15 @@ static int afs_proc_servers_show(struct seq_file *m, void *v)
 
 	server = list_entry(v, struct afs_server, proc_link);
 	alist = rcu_dereference(server->addresses);
-	seq_printf(m, "%pU %3d %pISp\n",
+	seq_printf(m, "%pU %3d %pISpc%s\n",
 		   &server->uuid,
 		   atomic_read(&server->usage),
-		   &alist->addrs[alist->index].transport);
+		   &alist->addrs[0].transport,
+		   alist->index == 0 ? "*" : "");
+	for (i = 1; i < alist->nr_addrs; i++)
+		seq_printf(m, "                                         %pISpc%s\n",
+			   &alist->addrs[i].transport,
+			   alist->index == i ? "*" : "");
 	return 0;
 }