Patch "nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"" has been added to the 4.4-stable tree

Patch "nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     nfs-fix-don-t-increment-lock-sequence-id-after-nfs4err_moved.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Jun 15 15:01:15 CEST 2017
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 26 Jan 2017 15:14:52 -0500
Subject: nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"

From: Chuck Lever <chuck.lever@oracle.com>


[ Upstream commit 406dab8450ec76eca88a1af2fc15d18a2b36ca49 ]

Lock sequence IDs are bumped in decode_lock by calling
nfs_increment_seqid(). nfs_increment_sequid() does not use the
seqid_mutating_err() function fixed in commit 059aa7348241 ("Don't
increment lock sequence ID after NFS4ERR_MOVED").

Fixes: 059aa7348241 ("Don't increment lock sequence ID after ...")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Xuan Qi <xuan.qi@oracle.com>
Cc: stable@vger.kernel.org # v3.7+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/nfs4state.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1072,6 +1072,7 @@ static void nfs_increment_seqid(int stat
 		case -NFS4ERR_BADXDR:
 		case -NFS4ERR_RESOURCE:
 		case -NFS4ERR_NOFILEHANDLE:
+		case -NFS4ERR_MOVED:
 			/* Non-seqid mutating errors */
 			return;
 	};


Patches currently in stable-queue which might be from chuck.lever@oracle.com are

queue-4.4/nfs-fix-don-t-increment-lock-sequence-id-after-nfs4err_moved.patch