Linux 2.6.21-rc1

Linus Torvalds
2007-02-21T04:53:48Z

Ok, the merge window for 2.6.21 has closed, and -rc1 is out there.

There's a lot of changes, as is usual for an -rc1 thing, but at least so
far it would seem that 2.6.20 has been a good base, and I don't think we
have anything *really* scary here.

The most interesting core change may be the dyntick/nohz one, where timer
ticks will only happen when needed. It's been brewing for a _loong_ time,
but it's in the standard kernel now as an option.

But there's a ton of architecture updates (arm, mips, powerpc, x86, you
name it), ACPI updates, and lots of driver work. And just a lot of
cleanups.

Have fun,

Linus