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List:       linux-parisc
Subject:    [GIT PULL] Metag architecture and related fixes for v3.15
From:       James Hogan <james.hogan () imgtec ! com>
Date:       2014-05-16 14:41:46
Message-ID: 537623AA.5040906 () imgtec ! com
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Hi Linus,

Please pull the following metag / parisc fixes, mostly relating to upgrow=
ing
stacks. These changes only affect metag and parisc, and although the
asm-generic one isn't strictly a fix it's simple and follows naturally fr=
om
the other _STK_LIM_MAX override removals (here for metag and in rc4 for
parisc).

Thanks
James

The following changes since commit d6d211db37e75de2ddc3a4f979038c40df7cc7=
9c:

  Linux 3.15-rc5 (2014-05-09 13:10:52 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag.git tags/met=
ag-for-v3.15-2

for you to fetch changes up to ffe6902b66aaa4ca6694bc19639259c16d84ddb1:

  asm-generic: remove _STK_LIM_MAX (2014-05-15 00:32:09 +0100)

----------------------------------------------------------------
Metag architecture and related fixes for v3.15

Mostly fixes for metag and parisc relating to upgrowing stacks.

* Fix missing compiler barriers in metag memory barriers.
* Fix BUG_ON on metag when RLIMIT_STACK hard limit is increased beyond
  safe value.
* Make maximum stack size configurable. This reduces the default user
  stack size back to 80MB (especially on parisc after their removal of
  _STK_LIM_MAX override). This only affects metag and parisc.
* Remove metag _STK_LIM_MAX override to match other arches and follow
  parisc, now that it is safe to do so (due to the BUG_ON fix mentioned
  above).
* Finally now that both metag and parisc _STK_LIM_MAX overrides have
  been removed, it makes sense to remove _STK_LIM_MAX altogether.

----------------------------------------------------------------
Helge Deller (1):
      parisc,metag: Do not hardcode maximum userspace stack size

James Hogan (3):
      metag: Reduce maximum stack size to 256MB
      metag: Remove _STK_LIM_MAX override
      asm-generic: remove _STK_LIM_MAX

Mikulas Patocka (1):
      metag: fix memory barriers

 arch/metag/include/asm/barrier.h       |  3 +++
 arch/metag/include/asm/processor.h     |  2 ++
 arch/metag/include/uapi/asm/Kbuild     |  2 +-
 arch/metag/include/uapi/asm/resource.h |  7 -------
 arch/parisc/include/asm/processor.h    |  5 +++++
 arch/parisc/kernel/sys_parisc.c        |  6 +++---
 fs/exec.c                              |  6 +++---
 include/asm-generic/resource.h         |  2 +-
 include/uapi/asm-generic/resource.h    |  7 -------
 mm/Kconfig                             | 15 +++++++++++++++
 10 files changed, 33 insertions(+), 22 deletions(-)
 delete mode 100644 arch/metag/include/uapi/asm/resource.h


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