> -----Original Message----- > From: Olaf Hering [mailto:o...@aepfle.de] > Sent: Tuesday, January 14, 2014 2:13 PM > To: KY Srinivasan > Cc: gre...@linuxfoundation.org; linux-kernel@vger.kernel.org; > de...@linuxdriverproject.org; a...@canonical.com; jasow...@redhat.com > Subject: Re: [PATCH V2 1/1] Drivers: hv: Implement the file copy service > > On Tue, Jan 14, K. Y. Srinivasan wrote: > > > > +static ssize_t fcopy_write(struct file *file, const char __user *buf, > > + size_t count, loff_t *ppos) > > +{ > > + int error = 0; > > + > > + if (count != sizeof(int)) > > + return 0; > > + > > + if (copy_from_user(&error, buf, sizeof(int))) > > + return -EFAULT; > > + > > + if (in_hand_shake) { > > + fcopy_handle_handshake(); > > + return 0; > > + } > > > > + /* > > + * Register with the kernel. > > + */ > > + write(fcopy_fd, &version, sizeof(int)); > > > Shouldnt there be some version check already even in this initial > implementation? What if there will be a newer daemon running on an older > kernel?
Currently, the daemon registers with the kernel passing its version number. I will make the version check "real". Thanks, K. Y > > Olaf
