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    Subject[PATCH 3.18 30/57] NFSv4.1: Fix an Oops in nfs41_walk_client_list
    Date
    3.18-stable review patch.  If anyone has any objections, please let me know.

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

    From: Trond Myklebust <trond.myklebust@primarydata.com>

    commit 3175e1dcec40fab1a444c010087f2068b6b04732 upstream.

    If we start state recovery on a client that failed to initialise correctly,
    then we are very likely to Oops.

    Reported-by: "Mkrtchyan, Tigran" <tigran.mkrtchyan@desy.de>
    Link: http://lkml.kernel.org/r/130621862.279655.1421851650684.JavaMail.zimbra@desy.de
    Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    fs/nfs/nfs4client.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/fs/nfs/nfs4client.c
    +++ b/fs/nfs/nfs4client.c
    @@ -640,7 +640,7 @@ int nfs41_walk_client_list(struct nfs_cl
    prev = pos;

    status = nfs_wait_client_init_complete(pos);
    - if (status == 0) {
    + if (pos->cl_cons_state == NFS_CS_SESSION_INITING) {
    nfs4_schedule_lease_recovery(pos);
    status = nfs4_wait_clnt_recover(pos);
    }



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