From 00dd4c32240694ae8619ed5445e4ffbc463f8eb0 Mon Sep 17 00:00:00 2001
From: Chunsheng Luo <luochunsheng@ustc.edu>
Date: Fri, 26 Jan 2024 00:30:13 +0800
Subject: [PATCH] libnuma: Fix incorrect print and exit of numa_preferred/_many
 APIs
 
Only when policy is preferred, numa_bitmask_weight will be judged,
because mbind and preferred_many support multiple nodes.
 
fixes: 87c6834("libnuma: Convert preferred node into a mask")
 
Signed-off-by: Chunsheng Luo <luochunsheng@ustc.edu>
 
Conflict: NA
Reference: https://github.com/numactl/numactl/commit/00dd4c32240694ae8619ed5445e4ffbc463f8eb0
---
 libnuma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/libnuma.c b/libnuma.c
index e898297..ef93558 100644
--- a/libnuma.c
+++ b/libnuma.c
@@ -1882,7 +1882,7 @@ static struct bitmask *__numa_preferred(void)
 			policy != MPOL_BIND)
 		return bmp;
 
-	if (numa_bitmask_weight(bmp) > 1) {
+	if (policy == MPOL_PREFERRED && numa_bitmask_weight(bmp) > 1) {
 		errno = EINVAL;
 		numa_error(__FILE__);
 	}
-- 
2.27.0