[ANNOUNCE] 2.6.31.12-rt21

[Thomas Gleixner]

We are pleased to announce the next update to our new preempt-rt
series.

     - fixes and cherry-picks all over the place

     - tracer fixes from Carsten 

Short log of the changes since v2.6.31.12-rt20

      bfbf2bf: v2.6.31.12-rt21
      16e4137: tracing: Include zero offset in timer histogram
      75df1a4: tracing: Do not assume shared prio in latency histogram
      5f18c0d: sched: Run task on same cpu if idle and allowed
      e4ab2c9: tracing: Abort wakeup hist if task already running
      49cf381: tracing: Abort wakeup tracer if task already running
      91b077f: tracing: Fix taskstates in sched_switch trace
      27d8f71: mutex: Move in_interrupt() debug code
      2309ca6: lockdep: Fix LOCKDEP=N compile of no_validate class
      68fd52c: lockdep: Add novalidate class for dev->mutex
      e99b72b: sched: Don't use possibly stale sched_class
      449c496: tracing: fix transposed numbers of lock_depth and preempt_count
      3862a7e: futex: Handle futex value corruption gracefully
      b9be6de: futex: Handle user space corruption gracefully
      eb9a3d2: futex_lock_pi() key refcnt fix
      54afa95: futexes: Remove rw parameter from get_futex_key()
      365db4e: bkl: Fix fatfingered irq_enable logic
      86f64b7: rework-hrtimer_offset-hist.patch
      005ab8c: [WATCHDOG] davinci: use clock framework for timer frequency
      05a3118: net: Fix IXP 2000 network driver building.
      3e786b2: ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST

This is (hopefully) the last release in the 31-rt series.

Download locations:
   
   http://rt.et.redhat.com/download/ (temporary out of sync)
   http://www.kernel.org/pub/linux/kernel/projects/rt/

Git release branch:
   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git rt/2.6.31
  
Gitweb:
   http://git.kernel.org/?p=linux/kernel/git/tip/linux-2.6-tip.git;a=shortlog;h=rt/2.6.31
  
Information on the RT patch can be found at:

   http://rt.wiki.kernel.org/index.php/Main_Page
 
to build the 2.6.31.12-rt21 tree, the following patches should be
applied:

   http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.31.12.tar.bz2
   http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.31.12-rt20.bz2

Enjoy !

      tglx
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