On 10/12/14 at 08:17pm, Al Viro wrote: > On Fri, Oct 10, 2014 at 11:21:16AM +0800, WANG Chao wrote: > > > I think __user annotation is for no dereferencing in kernel space. In > > this case, I think it's fine to override this error by __force. Because > > they're pointers with identical target types. > > Umm... The real question seems to be whether iovec is the right type in > the first place. Does ->tx_iov ever contain a vector with _userland_ > pointers? If not, it ought to be struct kvec * instead. I'm afraid I'm not familiar with lustre. [CCing lustre maintainers] Oleg and Andreas: Could you answer the Al's question? For your information, my original post was here: https://lkml.org/lkml/2014/10/9/135 Thanks WANG Chao _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
