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    Subject[ 24/82] NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO
    3.2-stable review patch.  If anyone has any objections, please let me know.

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

    From: Trond Myklebust <Trond.Myklebust@netapp.com>

    commit fb13bfa7e1bcfdcfdece47c24b62f1a1cad957e9 upstream.

    If a file OPEN is denied due to a share lock, the resulting
    NFS4ERR_SHARE_DENIED is currently mapped to the default EIO.
    This patch adds a more appropriate mapping, and brings Linux
    into line with what Solaris 10 does.

    See https://bugzilla.kernel.org/show_bug.cgi?id=43286

    Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    fs/nfs/nfs4proc.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
    index af2db2c..42d9e9c 100644
    --- a/fs/nfs/nfs4proc.c
    +++ b/fs/nfs/nfs4proc.c
    @@ -103,6 +103,8 @@ static int nfs4_map_errors(int err)
    case -NFS4ERR_BADOWNER:
    case -NFS4ERR_BADNAME:
    return -EINVAL;
    + case -NFS4ERR_SHARE_DENIED:
    + return -EACCES;
    default:
    dprintk("%s could not handle NFSv4 error %d\n",
    __func__, -err);



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