On Tue, Dec 11, 2012 at 03:20:32PM -0800, Greg KH wrote: > On Wed, Dec 12, 2012 at 12:12:02AM +0100, Benedikt Spranger wrote: > > The inode parameter is unused by in kernel users of UIO. > > Ok. > > > Also the inode parameter makes it hard to resolve the existing open(), > > mmap() and close() difficulty. > > I don't understand, what do you mean by this? What is this parameter > causing problems with?
The problem is that according to POSIX, it is guaranteed that in userspace you can do fd = open("/dev/uio0", ...) ptr = mmap(...fd...) close(fd) with ptr still being valid and useable after that. Thanks, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/