percpu fixes for 3.4-rc6

Hello, Linus.

This pull request contains two patches. One is kmemleak annotation fix which isn't critical. The other is kinda serious. Depending on NUMA topology, percpu allocator may end up assigning overlapping regions for the static percpu areas for different CPUs. While critical, the bug has been there for a very long time and only few configurations seem to be affected (NUMA configurations w/ no memory nodes for example) - so, while it's critical, it isn't exactly urgent.

If there isn't gonna be another rcX, I think it would be better to pull the fix as part of the next merge window and backport through -stable.

So, depending on release schedule, please consider pulling from the following branch.

git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git for-3.4-fixes

Catalin Marinas (1):
kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP

Tejun Heo (1):
percpu: pcpu_embed_first_chunk() should free unused parts after all allocs are complete

 mm/percpu.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

Thanks.

--
tejun