Linux 2.4.20-pre10

[Marcelo Tosatti]

Here goes pre10.

This version fixes the NFS hang which was introduced in early 2.4.20-pre's
plus some smaller fixes.

Summary of changes from v2.4.20-pre9 to v2.4.20-pre10
============================================

<[e-mail]>:
  o net/8021q/vlan_dev.c: Fix lockup when setting egress priority

<[e-mail]>:
  o net/sched/sch_htb.c: Check that node is really leaf before modifying cl->un.leaf

<[e-mail]>:
  o remove a dead extern
  o fix some O_DIRECT read cornercases

<[e-mail]>:
  o Changed EXTRAVERSION to pre10

<[e-mail]>:
  o Several S390 3270 fixes

<[e-mail]>:
  o [IPV4/IPV6]: General cleanups

Adrian Bunk <[e-mail]>:
  o Configure.help entries for BeFS
  o trivial Configure.help bits from -ac

Alan Cox <[e-mail]>:
  o Fusion driver fixes

Ben Collins <[e-mail]>:
  o IEEE1394 updates

Benjamin Herrenschmidt <[e-mail]>:
  o PPC32: Tweak the way various PPC cpus (750FX, 750CX, 745x) are set up
  o PPC32: Better support for the 750FX and 7455 PPC cpus
  o PPC32: support for new powermacs including the Xserve and eMac
  o PPC32: idle loop improvements for PPC 6xx/7xx/7xxx processors
  o PPC32: PCI fix for PCI-PCI bridges with the I/O window closed
  o PPC32: Fix race in i2c-keywest
  o PPC32: ide-pmac update
  o PPC32: ADB core locking fix
  o PPC32: Update net driver config description

Dave Kleikamp <[e-mail]>:
  o JFS: Releasing LOGGC_LOCK too early

David S. Miller <[e-mail]>:
  o [VLAN]: Accept zero vlan at unregister
  o net/core/dev.c: Print lethal dev/protocol errors with KERN_CRIT
  o net/8021q/vlan.c: Unsigned value may never be < 0

David Woodhouse <[e-mail]>:
  o JFFS2 updates

Ingo Molnar <[e-mail]>:
  o Fix speed braindamage of mass exit of thread groups

Lennert Buytenhek <[e-mail]>:
  o [NET]: Remove net_call_rx_atomic
  o [BRIDGE]: Skip the LISTENING_STP state if STP is disabled
  o [BRIDGE]: take BR_NETPROTO_LOCK for unlinking bridge device slaves

Paul Mackerras <[e-mail]>:
  o PPC32: Make the heartbeat count and reset variables be per-cpu
  o PPC32: update the default configs in arch/ppc/configs
  o PPC32: define register numbers for extra BATs; patch from Cort Dougan
  o PPC32: define TIOCM_MODEM_BITS, irda wants it
  o PPC32: Add support for the Total Impact BRIQ platform

Robert Love <[e-mail]>:
  o get_pid() typo fix

Trond Myklebust <[e-mail]>:
  o Workaround NFS hangs introduced in 2.4.20-pre