vserver 2.0 rc7

[linux-2.6.git] / arch / ppc64 / kernel / iSeries_htab.c

diff --git a/arch/ppc64/kernel/iSeries_htab.c b/arch/ppc64/kernel/iSeries_htab.c
index b1177b4..aa9e8fd 100644 (file)
--- a/arch/ppc64/kernel/iSeries_htab.c
+++ b/arch/ppc64/kernel/iSeries_htab.c
@@ -144,6 +144,10 @@ static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp,
 
        HvCallHpt_get(&hpte, slot);
        if ((hpte.dw0.dw0.avpn == avpn) && (hpte.dw0.dw0.v)) {
+               /*
+                * Hypervisor expects bits as NPPP, which is
+                * different from how they are mapped in our PP.
+                */
                HvCallHpt_setPp(slot, (newpp & 0x3) | ((newpp & 0x4) << 1));
                iSeries_hunlock(slot);
                return 0;