* [PATCH] Adjunct partition test
@ 2013-04-04 14:53 Michael Wolf
0 siblings, 0 replies; only message in thread
From: Michael Wolf @ 2013-04-04 14:53 UTC (permalink / raw)
To: linuxppc-dev
Some versions pHyp will perform the adjunct partition test before the
ANDCOND test. The result of this is that H_RESOURCE can be returned and
cause the BUG_ON condition to occur. So add a check for H_RESOURCE as
well.
Signed-off-by: Michael Wolf <mjw@linux.vnet.ibm.com>
---
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index c9a29da..724fa0b 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -185,7 +185,13 @@ static long pSeries_lpar_hpte_remove(unsigned long hpte_group)
(0x1UL << 4), &dummy1, &dummy2);
if (lpar_rc == H_SUCCESS)
return i;
- BUG_ON(lpar_rc != H_NOT_FOUND);
+
+ /*
+ * The test for adjunct partition is performed before the
+ * ANDCOND test. H_RESOURCE may be returned, so we need to
+ * check for that as well.
+ */
+ BUG_ON(lpar_rc != H_NOT_FOUND && lpar_rc != H_RESOURCE);
slot_offset++;
slot_offset &= 0x7;
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