Messages in this thread | | | Date | Mon, 21 Sep 2009 17:22:24 -0700 | From | Randy Dunlap <> | Subject | Re: fanotify as syscalls |
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On Mon, 21 Sep 2009 17:15:28 -0700 Eric W. Biederman wrote:
> Linus Torvalds <torvalds@linux-foundation.org> writes: > > > Quite frankly, I have _never_ever_ seen a good reason for talking to the > > kernel with some idiotic packet interface. It's just a fancy way to do > > ioctl's, and everybody knows that ioctl's are bad and evil. Why are fancy > > packet interfaces suddenly much better? > > For working with the networking stack there are a lot of advantages because > netlink is the interface to everything in the network stack. > > There are nice things like the packet to create a new interface is the same > packet the kernel sends everyone to report a new interface etc. > > netlink also seems to get the structured data thing right. You can > parse the packet even if you don't understand everything. Each tag is > well defined like a syscall, taking exactly one kind of argument. > Which avoids the worst failure of ioctl in that you can't even parse > everything, and the argument may be a linked list in the calling > process or something else atrocious. > > All of that said syscalls are good, and I would not recommend netlink > to anything not in the network stack.
like CONFIG_SCSI_NETLINK and CONFIG_QUOTA_NETLINK_INTERFACE :(
--- ~Randy
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