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    Subject[PATCH 3.18 35/69] NFSv4.1 respect servers max size in CREATE_SESSION
    Date
    3.18-stable review patch.  If anyone has any objections, please let me know.

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

    From: Olga Kornievskaia <kolga@netapp.com>


    [ Upstream commit 033853325fe3bdc70819a8b97915bd3bca41d3af ]

    Currently client doesn't respect max sizes server returns in CREATE_SESSION.
    nfs4_session_set_rwsize() gets called and server->rsize, server->wsize are 0
    so they never get set to the sizes returned by the server.

    Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
    Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
    Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    fs/nfs/nfs4client.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/fs/nfs/nfs4client.c
    +++ b/fs/nfs/nfs4client.c
    @@ -894,9 +894,9 @@ static void nfs4_session_set_rwsize(stru
    server_resp_sz = sess->fc_attrs.max_resp_sz - nfs41_maxread_overhead;
    server_rqst_sz = sess->fc_attrs.max_rqst_sz - nfs41_maxwrite_overhead;

    - if (server->rsize > server_resp_sz)
    + if (!server->rsize || server->rsize > server_resp_sz)
    server->rsize = server_resp_sz;
    - if (server->wsize > server_rqst_sz)
    + if (!server->wsize || server->wsize > server_rqst_sz)
    server->wsize = server_rqst_sz;
    #endif /* CONFIG_NFS_V4_1 */
    }

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