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authorThomas Gleixner <tglx@linutronix.de>2008-01-30 13:34:07 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:34:07 +0100
commita72a08a4b61cb8868606a69b744848552e92062b (patch)
treea82c77096eece34c0536de656959aa879cb02687
parent3c1df68b848b39270752ff8d4b956cc4a4dce0f6 (diff)
x86: cpa: fix split thinko
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/mm/pageattr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 23f0aa3d01c..a2ee317548f 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -216,8 +216,12 @@ repeat:
prot = static_protections(prot, address);
if (level == PG_LEVEL_4K) {
+ WARN_ON_ONCE(pgprot_val(prot) & _PAGE_PSE);
set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));
} else {
+ /* Clear the PSE bit for the 4k level pages ! */
+ pgprot_val(prot) = pgprot_val(prot) & ~_PAGE_PSE;
+
err = split_large_page(kpte, address);
if (!err)
goto repeat;