[RFC PATCH] powerpc/numa: Return the first online node instead of 0
From: Aneesh Kumar K.V <hidden>
Date: 2022-05-23 10:55:25
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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 <redacted> --- 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