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NFS: tidy up nfs_show_mountd_netid 

This function is a bit clumsy, incorrectly producing
",mountproto=" if mountd_protocol is 0 and !showdefaults,
and duplicating the code for reporting "auto".

Tidy it up so that it only makes a single seq_printf() call,
and more obviously does the right thing.

Fixes: ee671b016f ("NFS: convert proto= option to use netids rather than a protoname")
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
NeilBrown 2017-01-13 11:04:27 +11:00 committed by Anna Schumaker
parent 4c3ffd058c
commit 6f6e3c09c0
1 changed files with 7 additions and 14 deletions
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21
fs/nfs/super.c
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@ -531,39 +531,32 @@ static void nfs_show_mountd_netid(struct seq_file *m, struct nfs_server *nfss,
int showdefaults)
{
struct sockaddr *sap = (struct sockaddr *) &nfss->mountd_address;
char *proto = NULL;
seq_printf(m, ",mountproto=");
switch (sap->sa_family) {
case AF_INET:
switch (nfss->mountd_protocol) {
case IPPROTO_UDP:
seq_printf(m, RPCBIND_NETID_UDP);
proto = RPCBIND_NETID_UDP;
break;
case IPPROTO_TCP:
seq_printf(m, RPCBIND_NETID_TCP);
proto = RPCBIND_NETID_TCP;
break;
default:
if (showdefaults)
seq_printf(m, "auto");
}
break;
case AF_INET6:
switch (nfss->mountd_protocol) {
case IPPROTO_UDP:
seq_printf(m, RPCBIND_NETID_UDP6);
proto = RPCBIND_NETID_UDP6;
break;
case IPPROTO_TCP:
seq_printf(m, RPCBIND_NETID_TCP6);
proto = RPCBIND_NETID_TCP6;
break;
default:
if (showdefaults)
seq_printf(m, "auto");
}
break;
default:
if (showdefaults)
seq_printf(m, "auto");
}
if (proto || showdefaults)
seq_printf(m, ",mountproto=%s", proto ?: "auto");
}
static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,