[RFC PATCH 0/7] preempt: A few headers cleanups and preempt_schedule*() optimizations

[Frederic Weisbecker <fweisbec@gmail.com>]

Hi,

Optimizing the preempt_count operations (PREEMPT_ACTIVE + preempt_disable())
in a single operation from __schedule() callers was an idea of Linus a
few month ago. Here is a re-iteration, with a few header cleanups along
the way.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	sched/preempt

HEAD: c8bda0e6afc163e7e2804d30b9e4301652dc679c

Thanks,
	Frederic
---

Frederic Weisbecker (7):
      preempt: Merge preempt_mask.h into preempt.h
      preempt: Rearrange a few symbols after headers merge
      preempt: Rename PREEMPT_CHECK_OFFSET to PREEMPT_DISABLE_OFFSET
      preempt: Disable preemption from preempt_schedule*() callers
      sched: Pull preemption disablement duty up to __schedule() callers
      preempt: Fix out of date comment
      preempt: Remove PREEMPT_ACTIVE unmasking off in_atomic()


 arch/m68k/include/asm/irqflags.h |   3 -
 include/linux/bottom_half.h      |   1 -
 include/linux/hardirq.h          |   2 +-
 include/linux/preempt.h          | 123 ++++++++++++++++++++++++++++++++++++++-
 include/linux/preempt_mask.h     | 117 -------------------------------------
 include/linux/sched.h            |   2 +-
 kernel/sched/core.c              |  29 +++------
 lib/radix-tree.c                 |   2 +-
 8 files changed, 133 insertions(+), 146 deletions(-)