Recent fix from Chen Yucong (commit 0bc1f8b0682c "hwpoison: fix the handling
path of the victimized page frame that belong to non-LRU") rejects going
into unmapping operation for hugetlbfs/thp pages, which results in failing
error containing on such pages. This patch fixes it.
With this patch, hwpoison functional tests in mce-test testsuite pass.
Signed-off-by: Naoya Horiguchi <n-horigu...@ah.jp.nec.com>
---
mm/memory-failure.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git mmotm-2014-07-22-15-58.orig/mm/memory-failure.c
mmotm-2014-07-22-15-58/mm/memory-failure.c
index e3e2f007946e..f465b98d0209 100644
--- mmotm-2014-07-22-15-58.orig/mm/memory-failure.c
+++ mmotm-2014-07-22-15-58/mm/memory-failure.c
@@ -895,7 +895,13 @@ static int hwpoison_user_mappings(struct page *p, unsigned
long pfn,
struct page *hpage = *hpagep;
struct page *ppage;
- if (PageReserved(p) || PageSlab(p) || !PageLRU(p))
+ /*
+ * Here we are interested only in user-mapped pages, so skip any
+ * other types of pages.
+ */
+ if (PageReserved(p) || PageSlab(p))
+ return SWAP_SUCCESS;
+ if (!(PageLRU(hpage) || PageHuge(p)))
return SWAP_SUCCESS;
/*
--
1.9.3
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