From: Willy Tarreau <w@1wt.eu>
Date: Mon, 6 Jan 2025 18:50:36 +0000 (+0100)
Subject: MINOR: cpu-topo: skip identification of non-existing CPUs
X-Git-Tag: v3.2-dev8~63
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=baeea08dbacf352cba38bdc4183b6bea51e89367;p=thirdparty%2Fhaproxy.git

MINOR: cpu-topo: skip identification of non-existing CPUs

There's no point trying to read all entries under /cpu/cpu%d when that
one does not exist, so let's just skip it in this case.
---

diff --git a/src/cpu_topo.c b/src/cpu_topo.c
index 44814409e..aebdcf884 100644
--- a/src/cpu_topo.c
+++ b/src/cpu_topo.c
@@ -272,6 +272,9 @@ int cpu_detect_topology(void)
 		if (ha_cpu_topo[cpu].st & HA_CPU_F_OFFLINE)
 			continue;
 
+		if (!is_dir_present(NUMA_DETECT_SYSTEM_SYSFS_PATH "/cpu/cpu%d", cpu))
+			continue;
+
 		/* First, let's check the cache hierarchy. On systems exposing
 		 * it, index0 generally is the L1D cache, index1 the L1I, index2
 		 * the L2 and index3 the L3. But sometimes L1I/D are reversed,