The patch titled
Subject: arch/x86/mm/pageattr-test.c: fix false positive in CPA self test
has been added to the -mm tree. Its filename is
arch-x86-mm-pageattr-testc-fix-false-positive-in-cpa-self-test.patch
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------------------------------------------------------
From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Subject: arch/x86/mm/pageattr-test.c: fix false positive in CPA self test
If the pmd is not present, _PAGE_PSE will not be set anymore. Fix the
false positive.
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/pageattr-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/mm/pageattr-test.c~arch-x86-mm-pageattr-testc-fix-false-positive-in-cpa-self-test arch/x86/mm/pageattr-test.c
--- a/arch/x86/mm/pageattr-test.c~arch-x86-mm-pageattr-testc-fix-false-positive-in-cpa-self-test
+++ a/arch/x86/mm/pageattr-test.c
@@ -68,7 +68,7 @@ static int print_split(struct split_stat
s->gpg++;
i += GPS/PAGE_SIZE;
} else if (level == PG_LEVEL_2M) {
- if (!(pte_val(*pte) & _PAGE_PSE)) {
+ if ((pte_val(*pte) & _PAGE_PRESENT) && !(pte_val(*pte) & _PAGE_PSE)) {
printk(KERN_ERR
"%lx level %d but not PSE %Lx\n",
addr, level, (u64)pte_val(*pte));
_
Patches currently in -mm which might be from aarcange@xxxxxxxxxx are
mm-pageattr-convert-noop-to-functional-fix.patch
arch-x86-mm-pageattr-testc-fix-false-positive-in-cpa-self-test.patch
thp-fix-comment-about-memory-barrier.patch
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