NFS: Add a stub for GETDEVICELIST

d4b18c3e (pnfs: remove GETDEVICELIST implementation) removed the
GETDEVICELIST operation from the NFS client, but left a "hole" in the
nfs4_procedures array.  This caused /proc/self/mountstats to report an
operation named "51" where GETDEVICELIST used to be.  This patch adds a
stub to fix mountstats.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Fixes: d4b18c3e (pnfs: remove GETDEVICELIST implementation)
Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6b28a605c697..a26880cb8ce8 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -7361,6 +7361,11 @@ nfs4_stat_to_errno(int stat)
         .p_name   = #proc,                                      \
 }
 
+#define STUB(proc)              \
+[NFSPROC4_CLNT_##proc] = {      \
+        .p_name = #proc,        \
+}
+
 struct rpc_procinfo     nfs4_procedures[] = {
         PROC(READ,              enc_read,               dec_read),
         PROC(WRITE,             enc_write,              dec_write),
@@ -7413,6 +7418,7 @@ struct rpc_procinfo	nfs4_procedures[] = {
         PROC(SECINFO_NO_NAME,   enc_secinfo_no_name,    dec_secinfo_no_name),
         PROC(TEST_STATEID,      enc_test_stateid,       dec_test_stateid),
         PROC(FREE_STATEID,      enc_free_stateid,       dec_free_stateid),
+        STUB(GETDEVICELIST),
         PROC(BIND_CONN_TO_SESSION,
                         enc_bind_conn_to_session, dec_bind_conn_to_session),
         PROC(DESTROY_CLIENTID,  enc_destroy_clientid,   dec_destroy_clientid),