ChangeSet@1.1787, 2004-06-17 21:16:48-07:00, rth@twiddle.net
  [PATCH] alpha: fix discontigmem+initrd build
  
  From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
  
  Compilation fails due to incorrect usage of NODE_DATA().
  
  Reported by hpa.

ChangeSet@1.1786, 2004-06-17 21:04:44-07:00, paulus@samba.org
  [PATCH] ppc64: Optimize exception/syscall entry/exit
  
  This rewrites the PPC64 exception entry/exit routines to make them
  smaller and faster.
  
  In particular we no longer save all of the registers for the common
  exceptions - system calls, hardware interrupts and decrementer (timer)
  interrupts - only the volatile registers.  The other registers are saved
  and restored (if used) by the C functions we call.  This involved
  changing the registers we use in early exception processing from r20-r23
  to r9-r12, which ended up changing quite a lot of code in head.S. 
  Overall this gives us about a 20% reduction in null syscall time. 
  
  Some system calls need all the registers (e.g.  fork/clone/vfork and
  [rt_]sigsuspend).  For these the syscall dispatch code calls a stub that
  saves the nonvolatile registers before calling the real handler.
  
  This also implements the force_successful_syscall_return() thing for
  ppc64.
  
  Signed-off-by: Paul Mackerras <paulus@samba.org>
  Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ChangeSet@1.1785, 2004-06-17 21:04:32-07:00, paulus@samba.org
  [PATCH] ppc64: Implement CONFIG_PREEMPT
  
  This implements CONFIG_PREEMPT for ppc64.  Aside from the entry.S
  changes to check the _TIF_NEED_RESCHED bit when returning from an
  exception, there are various changes to make the ppc64-specific code
  preempt-safe, mostly adding preempt_enable/disable or get_cpu/put_cpu
  calls where needed.  I have been using this on my desktop G5 for the
  last week without problems.
  
  Signed-off-by: Paul Mackerras <paulus@samba.org>
  Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ChangeSet@1.1784, 2004-06-15 22:17:47-07:00, torvalds@ppc970.osdl.org
  Linux 2.6.7
  TAG: v2.6.7