Subject: Kernel change summary 1.1.20 -> 1.1.21
Newsgroups: comp.os.linux.development

Keep track of the number of hard drives correctly.
If we're timing out a character, reflect that on a select() for input.
If the line discipline for a pty has no method for getting the
	characters in a buffer, pretend there are none (rather than
	crashing).
If they're starting up a serial port as root, and it looks like
	there's no uart, just set an error bit rather than returning
	an error.
Same thing for setting the IRQ, probably to fix something with ``setserial''.
List of floppy tape support drives added.
Kernel calls to request and free dma added.
Don't unload a module if it's busy!

Networking notes:

o	Small bug fix in the apricot xen-ii driver code (Mark Evans)
o	DE600 changes + DE620 driver (Bj0rn Eckwall)
o	WWW error return bug fixed (Everyone!)
o	SLIP default address is now better
o	Small changes to PLIP (Niibe)
o	Added PF_UNSPEC	(Dominic Kubla)
o	TCP fastpath for receive.
o	Turbo charged tcp checksum routine (Arnt Gulbrandsen)
o	PPP locking bug fixes (Florian La Roche)