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authorWu Fengguang <fengguang.wu@intel.com>2009-10-07 16:32:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-08 07:36:39 -0700
commit253fb02d62571e5455eedc9e39b9d660e86a40f0 (patch)
treef52fc8f0d792148d43e4e38ed48dc3666ef50b75 /Documentation/vm/pagemap.txt
parent7823da36ce8e42d66941887eb922768d259763f2 (diff)
downloadop-kernel-dev-253fb02d62571e5455eedc9e39b9d660e86a40f0.zip
op-kernel-dev-253fb02d62571e5455eedc9e39b9d660e86a40f0.tar.gz
pagemap: export KPF_HWPOISON
This flag indicates a hardware detected memory corruption on the page. Any future access of the page data may bring down the machine. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/pagemap.txt')
-rw-r--r--Documentation/vm/pagemap.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt
index 600a304..2fdd84a 100644
--- a/Documentation/vm/pagemap.txt
+++ b/Documentation/vm/pagemap.txt
@@ -57,6 +57,7 @@ There are three components to pagemap:
16. COMPOUND_TAIL
16. HUGE
18. UNEVICTABLE
+ 19. HWPOISON
20. NOPAGE
Short descriptions to the page flags:
@@ -86,6 +87,9 @@ Short descriptions to the page flags:
17. HUGE
this is an integral part of a HugeTLB page
+19. HWPOISON
+ hardware detected memory corruption on this page: don't touch the data!
+
20. NOPAGE
no page frame exists at the requested address
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