If early cpu to node mapping finds an invalid node id, return
the first online node instead of node 0.
With commit e75130f20b1f ("powerpc/numa: Offline memoryless cpuless node 0")
the kernel marks node 0 offline in certain scenarios.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
---
arch/powerpc/include/asm/topology.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/topology.h
b/arch/powerpc/include/asm/topology.h
index 8a4d4f4d9749..704088b1d53c 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -60,7 +60,7 @@ static inline int early_cpu_to_node(int cpu)
* Fall back to node 0 if nid is unset (it should be, except bugs).
* This allows callers to safely do NODE_DATA(early_cpu_to_node(cpu)).
*/
- return (nid < 0) ? 0 : nid;
+ return (nid < 0) ? first_online_node : nid;
}
int of_drconf_to_nid_single(struct drmem_lmb *lmb);
--
2.36.1
