* [RFC PATCH] powerpc/numa: Return the first online node instead of 0
@ 2022-05-23 10:53 Aneesh Kumar K.V
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From: Aneesh Kumar K.V @ 2022-05-23 10:53 UTC (permalink / raw)
To: linuxppc-dev, mpe; +Cc: Aneesh Kumar K.V
If early cpu to node mapping finds an invalid node id, return
the first online node instead of node 0. On ppc, we can find node 0
not present.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@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 36fcafb1fd6d..3f07231d33b3 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
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