linux-kernel - [PATCH 4.0 206/220] NFS: Add a stub for GETDEVICELIST

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Message-Id: <20150502185903.175211222@linuxfoundation.org>
Date:	Sat,  2 May 2015 21:02:01 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Anna Schumaker <Anna.Schumaker@...app.com>,
	Trond Myklebust <trond.myklebust@...marydata.com>
Subject: [PATCH 4.0 206/220] NFS: Add a stub for GETDEVICELIST

4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anna Schumaker <Anna.Schumaker@...app.com>

commit 7c61f0d3897eeeff6f3294adb9f910ddefa8035a upstream.

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@...app.com>
Fixes: d4b18c3e (pnfs: remove GETDEVICELIST implementation)
Signed-off-by: Trond Myklebust <trond.myklebust@...marydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/nfs/nfs4xdr.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -7365,6 +7365,11 @@ 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),
@@ -7417,6 +7422,7 @@ 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),


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