[patch 00/10] mutex subsystem, -V5

[Ingo Molnar <mingo@elte.hu>]

this is verion -V5 of the generic mutex subsystem. It consists of the 
following patches:

  add-atomic-xchg.patch
  add-atomic-call-func-i386.patch
  add-atomic-call-func-x86_64.patch
  add-atomic-call-wrappers-rest.patch
  mutex-core.patch
  mutex-docs.patch
  mutex-switch-arm-to-xchg.patch
  mutex-debug.patch
  mutex-debug-more.patch
  xfs-mutex-namespace-collision-fix.patch

the patches are against Linus' latest GIT tree, and they should work 
fine on every Linux architecture.

Changes since -V4:

 26 files changed, 255 insertions(+), 104 deletions(-)

- added Documentation/mutex-design.txt, suggested by Andrew Morton.

- removed __ARCH_WANT_XCHG_BASED_ATOMICS and implemented
  CONFIG_MUTEX_XCHG_ALGORITHM instead, based on comments from
  Christoph Hellwig.

- updated ARM to use CONFIG_MUTEX_XCHG_ALGORITHM.

- added mutex_destroy(), suggested by Christoph Hellwig.

- added queue-secondary-waiters-as-LIFO, suggested by Nick Piggin.

- mutex.h: include file ordering fix (Christoph Hellwig).

- mutex.h: comment fix (Christoph Hellwig).

- mutex.c: smaller cleanups

	Ingo
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