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| author | Andrea Arcangeli <aarcange@redhat.com> | 2013-04-11 15:36:09 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-04-12 06:39:20 +0200 |
| commit | 18699739b60cb60230153ff5475b2ba92be185f9 (patch) | |
| tree | 6ea839de2b474022fb3f3710865c11ef135a83be | |
| parent | f76cfa3c2496c462b5bc01bd0c9340c2715b73ca (diff) | |
| download | linux-18699739b60cb60230153ff5475b2ba92be185f9.tar.gz linux-18699739b60cb60230153ff5475b2ba92be185f9.tar.bz2 linux-18699739b60cb60230153ff5475b2ba92be185f9.zip | |
x86/mm/cpa/selftest: Fix false positive in CPA self test
If the pmd is not present, _PAGE_PSE will not be set anymore.
Fix the false positive.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Stefan Bader <stefan.bader@canonical.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1365687369-30802-1-git-send-email-aarcange@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/mm/pageattr-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index b0086567271c..0e38951e65eb 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -68,7 +68,7 @@ static int print_split(struct split_state *s) 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)); |