When calling numa_node_to_cpus on non-existing node number (e.g. for
non-contiguous node numbers), a bit confusing warning is supressed. Since
warnings are implemented as weak functions they cannot be overriden when
using dlsym interface.
Signed-off-by: Petr Holasek <pholasek@xxxxxxxxxx>
---
libnuma.c | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/libnuma.c b/libnuma.c
index 3717d5b..549525c 100644
--- a/libnuma.c
+++ b/libnuma.c
@@ -1276,11 +1276,13 @@ numa_node_to_cpus_v1(int node, unsigned long *buffer, int bufferlen)
sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node);
f = fopen(fn, "r");
if (!f || getdelim(&line, &len, '\n', f) < 1) {
- numa_warn(W_nosysfs2,
- "/sys not mounted or invalid. Assuming one node: %s",
- strerror(errno));
- numa_warn(W_nosysfs2,
- "(cannot open or correctly parse %s)", fn);
+ if (numa_bitmask_isbitset(numa_nodes_ptr, node)) {
+ numa_warn(W_nosysfs2,
+ "/sys not mounted or invalid. Assuming one node: %s",
+ strerror(errno));
+ numa_warn(W_nosysfs2,
+ "(cannot open or correctly parse %s)", fn);
+ }
bitmask.maskp = (unsigned long *)mask;
bitmask.size = buflen_needed * 8;
numa_bitmask_setall(&bitmask);
@@ -1355,11 +1357,13 @@ numa_node_to_cpus_v2(int node, struct bitmask *buffer)
sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node);
f = fopen(fn, "r");
if (!f || getdelim(&line, &len, '\n', f) < 1) {
- numa_warn(W_nosysfs2,
- "/sys not mounted or invalid. Assuming one node: %s",
- strerror(errno));
- numa_warn(W_nosysfs2,
- "(cannot open or correctly parse %s)", fn);
+ if (numa_bitmask_isbitset(numa_nodes_ptr, node)) {
+ numa_warn(W_nosysfs2,
+ "/sys not mounted or invalid. Assuming one node: %s",
+ strerror(errno));
+ numa_warn(W_nosysfs2,
+ "(cannot open or correctly parse %s)", fn);
+ }
numa_bitmask_setall(mask);
err = -1;
}
--
2.4.3
--
To unsubscribe from this list: send the line "unsubscribe linux-numa" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
