v2.4.9.2 -> v2.4.9.3

v2.4.9.2 -> v2.4.9.3

  - Johannes Erdfelt, Oliver Neukum: USB printer driver race fix
  - John Byrne: fix stupid i386-SMP irq stack layout bug
  - Andreas Bombe, me: yenta IO window fix
  - Neil Brown: raid1 buffer state fix
  - David Miller, Paul Mackerras: fix up sparc and ppc respectively for kmap/kbd_rate
  - Matija Nalis: umsdos fixes, and make it possible to boot up with umsdos
  - Francois Romieu: fix bugs in dscc4 driver
  - Andy Grover: new PCI config space access functions (eventually for ACPI)
  - Albert Cranford: fix incorrect e2fsprog data from ver_linux script
  - Dave Jones: re-sync x86 setup code, fix macsonic kmalloc use
  - Johannes Erdfelt: remove obsolete plusb USB driver
  - Andries Brouwer: fix USB compact flash version info, add blksize ioctls