• Christoph Hellwig's avatar
    nfsd: take struct file setup fully into nfs4_preprocess_stateid_op · af90f707
    Christoph Hellwig authored
    This patch changes nfs4_preprocess_stateid_op so it always returns
    a valid struct file if it has been asked for that.  For that we
    now allocate a temporary struct file for special stateids, and check
    permissions if we got the file structure from the stateid.  This
    ensures that all callers will get their handling of special stateids
    right, and avoids code duplication.
    
    There is a little wart in here because the read code needs to know
    if we allocated a file structure so that it can copy around the
    read-ahead parameters.  In the long run we should probably aim to
    cache full file structures used with special stateids instead.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
    af90f707
xdr4.h 21.1 KB