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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 /fs/proc/page.c
parent7823da36ce8e42d66941887eb922768d259763f2 (diff)
downloadlinux-253fb02d62571e5455eedc9e39b9d660e86a40f0.tar.bz2
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 'fs/proc/page.c')
-rw-r--r--fs/proc/page.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 2281c2cbfe2b..5033ce0d254b 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -94,6 +94,7 @@ static const struct file_operations proc_kpagecount_operations = {
#define KPF_COMPOUND_TAIL 16
#define KPF_HUGE 17
#define KPF_UNEVICTABLE 18
+#define KPF_HWPOISON 19
#define KPF_NOPAGE 20
#define KPF_KSM 21
@@ -180,6 +181,10 @@ static u64 get_uflags(struct page *page)
u |= kpf_copy_bit(k, KPF_UNEVICTABLE, PG_unevictable);
u |= kpf_copy_bit(k, KPF_MLOCKED, PG_mlocked);
+#ifdef CONFIG_MEMORY_FAILURE
+ u |= kpf_copy_bit(k, KPF_HWPOISON, PG_hwpoison);
+#endif
+
#ifdef CONFIG_IA64_UNCACHED_ALLOCATOR
u |= kpf_copy_bit(k, KPF_UNCACHED, PG_uncached);
#endif