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From a69169698c4c086b7a74602938b329fb055fdf60 Mon Sep 17 00:00:00 2001
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From: Petr Holasek <pholasek@redhat.com>
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Date: Mon, 7 Dec 2015 15:32:29 +0100
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Subject: [PATCH] libnuma: supress warnings for non-existing node
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When calling numa_node_to_cpus on non-existing node number (e.g. for
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non-contiguous node numbers), a bit confusing warning is supressed. Since
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warnings are implemented as weak functions they cannot be overriden when
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using dlsym interface.
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Signed-off-by: Petr Holasek <pholasek@redhat.com>
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---
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libnuma.c | 24 ++++++++++++++----------
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1 file changed, 14 insertions(+), 10 deletions(-)
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diff --git a/libnuma.c b/libnuma.c
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index 3717d5b..549525c 100644
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--- a/libnuma.c
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+++ b/libnuma.c
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@@ -1276,11 +1276,13 @@ numa_node_to_cpus_v1(int node, unsigned long *buffer, int bufferlen)
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sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node);
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f = fopen(fn, "r");
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if (!f || getdelim(&line, &len, '\n', f) < 1) {
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- numa_warn(W_nosysfs2,
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- "/sys not mounted or invalid. Assuming one node: %s",
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- strerror(errno));
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- numa_warn(W_nosysfs2,
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- "(cannot open or correctly parse %s)", fn);
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+ if (numa_bitmask_isbitset(numa_nodes_ptr, node)) {
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+ numa_warn(W_nosysfs2,
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+ "/sys not mounted or invalid. Assuming one node: %s",
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+ strerror(errno));
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+ numa_warn(W_nosysfs2,
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+ "(cannot open or correctly parse %s)", fn);
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+ }
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bitmask.maskp = (unsigned long *)mask;
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bitmask.size = buflen_needed * 8;
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numa_bitmask_setall(&bitmask);
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@@ -1355,11 +1357,13 @@ numa_node_to_cpus_v2(int node, struct bitmask *buffer)
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sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node);
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f = fopen(fn, "r");
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if (!f || getdelim(&line, &len, '\n', f) < 1) {
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- numa_warn(W_nosysfs2,
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- "/sys not mounted or invalid. Assuming one node: %s",
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- strerror(errno));
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- numa_warn(W_nosysfs2,
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- "(cannot open or correctly parse %s)", fn);
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+ if (numa_bitmask_isbitset(numa_nodes_ptr, node)) {
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+ numa_warn(W_nosysfs2,
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+ "/sys not mounted or invalid. Assuming one node: %s",
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+ strerror(errno));
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+ numa_warn(W_nosysfs2,
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+ "(cannot open or correctly parse %s)", fn);
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+ }
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numa_bitmask_setall(mask);
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err = -1;
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}
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--
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2.4.3
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