On Tue, Apr 28, 2020 at 08:02:07PM +0800, Jeremy Kerr wrote: > Currently, we may perform a copy_to_user (through > simple_read_from_buffer()) while holding a context's register_lock, > while accessing the context save area. > > This change uses a temporary buffers for the context save area data, > which we then pass to simple_read_from_buffer. > > Signed-off-by: Jeremy Kerr <jk@xxxxxxxxxx> > --- > > Christoph - this fixes the copy_to_user while atomic, hopefully with > only minimal distruption to your series. I recognize plenty of sniplets from that :) Your patch looks good to me: Reviewed-by: Christoph Hellwig <hch@xxxxxx>
