[patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.18

[Ingo Molnar]

i have released the -V0.7.18 Real-Time Preemption patch, which can be
downloaded from:

   http://redhat.com/~mingo/realtime-preempt/

this release includes fixes and cleanups.

Changes between -V0.7.12 and -V0.7.18:

 - merged to 2.6.10-rc1-mm3

 - fixed the e1000 xmit warnings reported by Amit Shah. Same fix for tg3
   too.

 - added irq-latency fix from Thomas Gleixner: re-enable interrupts
   before adding timings to the entropy pool.

 - fixed excessive ksoftirqd overhead during outgoing TCP traffic. 
   ksoftirqd kept getting re-woken while it had no way to progress.

 - added upstream fix from Andi Kleen for the vmalloc bug causing module
   load problems/crashes. Added ipc/shm fix too.

Changes between -V0.7.1 and -V0.7.12:

 - big source level cleanups: completely rearranged the mutex type
   definitions and source files, to make it reflect the code. Made
   all locking objects based on a new, central lock type: struct
   rt_mutex. This type is never exposed externally, it is internal to
   the RT code. Unified all the RT locking code in kernel/rt.c, this 
   also simplified and sped things up. Undid collateral damage to the
   generic rwsem code - it is now untouched and independent of the RT
   code.

 - rearranged the way spinlocks interact with the RT code and cleaned 
   up the RT spinlock definitions. Found and fixed a bug in the process:
   rwlocks were dropping the BKL upon contention.

 - small x86 speedup: call __schedule not preempt_schedule_irq from
   work_resched.

 - ported PREEMPT_RT to x64. This resulted in the generalization of some
   of the x86 changes.

 - hopefully fixed fbcon kernel logging

 - hacked reiser4 to make it work on PREEMPT_REALTIME.

 - dropped the swap-layout-improvements patch. While it was working fine 
   it's not necessary for latencies anymore under the PREEMPT_REALTIME
   approach, and the swap-patch was getting intrusive.

 - fixed preemption-bug in drain_cpu_caches() on SMP [bug introduced by
   PREEMPT_REALTIME]

 - new attempt at getting rid of the networking related deadlocks

 - selinux deadlock fix and RCU-code conversion to RT semantics

to create a -V0.7.18 tree from scratch, the patching order is:

   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.9.tar.bz2
   http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.10-rc1.bz2
   http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/2.6.10-rc1-mm3.bz2
   http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.10-rc1-mm3-V0.7.18

	Ingo
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