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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2010-05-28 09:29:22 +0900 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2010-08-11 09:23:11 +0200 |
| commit | 43131e141abdb44c487cf79af3ef1fe5164dcef9 (patch) | |
| tree | 374312457143abd52f1c4b0dbada363f5a69ba55 /mm/hugetlb.c | |
| parent | fd6a03edd271cf2d69a61aa8df98dd05fa6b9afd (diff) | |
| download | op-kernel-dev-43131e141abdb44c487cf79af3ef1fe5164dcef9.zip op-kernel-dev-43131e141abdb44c487cf79af3ef1fe5164dcef9.tar.gz | |
HWPOISON, hugetlb: support hwpoison injection for hugepage
This patch enables hwpoison injection through debug/hwpoison interfaces,
with which we can test memory error handling for free or reserved
hugepages (which cannot be tested by madvise() injector).
[AK: Export PageHuge too for the injection module]
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 4c2efc0f..3c275ff 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -615,6 +615,8 @@ int PageHuge(struct page *page) return dtor == free_huge_page; } +EXPORT_SYMBOL_GPL(PageHuge); + static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid) { struct page *page; |
