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| author | Thomas Gleixner <tglx@linutronix.de> | 2008-02-04 16:48:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-02-04 16:48:08 +0100 |
| commit | 64f351d197d9ae8ad9624998afa8ee18e696ca44 (patch) | |
| tree | 62673c9ecb52e390fb1c936cc1ad75a7da706b28 /arch/x86 | |
| parent | 07cf89c05f2bbafa002401ac4e09ac31678513e4 (diff) | |
| download | linux-64f351d197d9ae8ad9624998afa8ee18e696ca44.tar.gz linux-64f351d197d9ae8ad9624998afa8ee18e696ca44.tar.bz2 linux-64f351d197d9ae8ad9624998afa8ee18e696ca44.zip | |
x86: cpa selftest, skip non present entries
pud and pmd entries in the RAM area might be marked as non present.
Do not try to modify them in the selftest.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/mm/pageattr-test.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index 7573e786d2f2..398f3a578dde 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -137,7 +137,8 @@ static __init int exercise_pageattr(void) for (k = 0; k < len[i]; k++) { pte = lookup_address(addr[i] + k*PAGE_SIZE, &level); - if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) { + if (!pte || pgprot_val(pte_pgprot(*pte)) == 0 || + !(pte_val(*pte) & _PAGE_PRESENT)) { addr[i] = 0; break; } |