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Subject[GIT PULL] Please pull hwpoison updates for 2.6.33

Hi Linus

Please pull the hwpoison updates for 2.6.33 from

git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison

This touches some code outside hwpoison, like the page flags
reporting code and some fixes for memcg to implement the memcg hwpoison
filter. All these changes are straight-forward, and have been reviewed.

Major new features:
- "soft offline" Offline a page without killing a process.
This allows to implement predictive failure analysis for memory, by
watching error trends per page and offlining a page that has too many
corrected errors. The policy is all in user space; the kernel just
offlines the page and reports the errors.
The current git mcelog has support for using this interface.
- Be more aggressive at flushing caches to get access to a page
- Various fixes for the core memory_failure path
- Handle free memory better by detecting higher-order buddy pages
reliably too.
- Provide a new sysfs interface for both hard and soft offlining.
The existing debugfs interface is still there.
- unpoison support
Unpoison a page. This is mainly for testing to let the stress tester
run longer.
- hwpoison filter
Various filters to the hwpoison PFN error injection, including
memcg, page type, block device and others.
This is used by the mce-test stress suite to protect the test suite itself

Testing:
There are test cases for soft offlining in mce-test.

Andi Kleen (12):
HWPOISON: Add Andi Kleen as hwpoison maintainer to MAINTAINERS
HWPOISON: Be more aggressive at freeing non LRU caches
HWPOISON: Turn ref argument into flags argument
HWPOISON: add memory cgroup filter
HWPOISON: Use get_user_page_fast in hwpoison madvise
HWPOISON: mention HWPoison in Kconfig entry
HWPOISON: Use correct name for MADV_HWPOISON in documentation
HWPOISON: Use new shake_page in memory_failure
HWPOISON: Undefine short-hand macros after use to avoid namespace conflict
HWPOISON: Add soft page offline support
HWPOISON: Add a madvise() injector for soft page offlining
HWPOISON: Don't do early filtering if filter is disabled

Haicheng Li (1):
HWPOISON: add an interface to switch off/on all the page filters

Wu Fengguang (19):
page-types: add standard GPL license header
HWPOISON: remove the anonymous entry
HWPOISON: return ENXIO on invalid page number
HWPOISON: avoid grabbing the page count multiple times during madvise injection
HWPOISON: abort on failed unmap
HWPOISON: comment the possible set_page_dirty() race
HWPOISON: comment dirty swapcache pages
HWPOISON: introduce delete_from_lru_cache()
HWPOISON: remove the free buddy page handler
HWPOISON: detect free buddy pages explicitly
HWPOISON: Add unpoisoning support
HWPOISON: make semantics of IGNORED/DELAYED clear
HWPOISON: return 0 to indicate success reliably
HWPOISON: add fs/device filters
HWPOISON: limit hwpoison injector to known page types
mm: export stable page flags
HWPOISON: add page flags filter
memcg: rename and export try_get_mem_cgroup_from_page()
memcg: add accessor to mem_cgroup.css

.../ABI/testing/sysfs-memory-page-offline | 44 ++
Documentation/vm/hwpoison.txt | 52 ++-
Documentation/vm/page-types.c | 15 +-
MAINTAINERS | 9 +
drivers/base/memory.c | 61 +++
fs/proc/page.c | 45 +--
include/asm-generic/mman-common.h | 1 +
include/linux/kernel-page-flags.h | 46 ++
include/linux/memcontrol.h | 13 +
include/linux/mm.h | 8 +-
include/linux/page-flags.h | 4 +-
mm/Kconfig | 3 +-
mm/hwpoison-inject.c | 113 ++++-
mm/internal.h | 12 +
mm/madvise.c | 21 +-
mm/memcontrol.c | 16 +-
mm/memory-failure.c | 558 ++++++++++++++++++--
mm/memory.c | 4 +
mm/page_alloc.c | 21 +
19 files changed, 921 insertions(+), 125 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-memory-page-offline
create mode 100644 include/linux/kernel-page-flags.h
--
ak@linux.intel.com -- Speaking for myself only.

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