kernel_optimize_test/Documentation/vm
Wu Fengguang 31d3d3484f HWPOISON: limit hwpoison injector to known page types
__memory_failure()'s workflow is

	set PG_hwpoison
	//...
	unset PG_hwpoison if didn't pass hwpoison filter

That could kill unrelated process if it happens to page fault on the
page with the (temporary) PG_hwpoison. The race should be big enough to
appear in stress tests.

Fix it by grabbing the page and checking filter at inject time.  This
also avoids the very noisy "Injecting memory failure..." messages.

- we don't touch madvise() based injection, because the filters are
  generally not necessary for it.
- if we want to apply the filters to h/w aided injection, we'd better to
  rearrange the logic in __memory_failure() instead of this patch.

AK: fix documentation, use drain all, cleanups

CC: Haicheng Li <haicheng.li@intel.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2009-12-16 12:19:59 +01:00
..
.gitignore Documentation/vm/.gitignore: add page-types 2009-09-24 07:20:57 -07:00
00-INDEX hugetlb: add MAP_HUGETLB example 2009-09-22 07:17:42 -07:00
active_mm.txt mm: add documentation describing what tsk->active_mm means vs tsk->mm 2009-04-13 15:04:32 -07:00
balance page allocator: use allocation flags as an index to the zone watermark 2009-06-16 19:47:35 -07:00
hugetlbpage.txt hugetlb: handle memory hot-plug events 2009-12-15 08:53:13 -08:00
hwpoison.txt HWPOISON: limit hwpoison injector to known page types 2009-12-16 12:19:59 +01:00
ksm.txt ksm: remove unswappable max_kernel_pages 2009-12-15 08:53:20 -08:00
locking truncate: new helpers 2009-09-24 08:41:47 -04:00
Makefile Documentation/vm/Makefile: don't try to build slqbinfo 2009-06-17 09:45:46 -07:00
map_hugetlb.c hugetlb: add MAP_HUGETLB example 2009-09-22 07:17:42 -07:00
numa Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
numa_memory_policy.txt trivial: fix where cgroup documentation is not correctly referred to 2009-03-30 15:22:02 +02:00
overcommit-accounting Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
page_migration trivial: fix where cgroup documentation is not correctly referred to 2009-03-30 15:22:02 +02:00
page-types.c page-types: add standard GPL license header 2009-12-16 12:19:57 +01:00
pagemap.txt pagemap: document KPF_KSM and show it in page-types 2009-10-08 07:36:39 -07:00
slabinfo.c Documentation/: fix warnings from -Wmissing-prototypes in HOSTCFLAGS 2009-09-23 07:39:28 -07:00
slub.txt doc: Fix a typo in slub.txt. 2009-12-04 15:39:59 +01:00
unevictable-lru.txt mm: reformat the Unevictable-LRU documentation 2009-04-13 15:04:31 -07:00