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-rw-r--r--lib/cpumask.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 8e1496cb63f7..3389e2440da0 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -107,6 +107,14 @@ bool alloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, int node)
dump_stack();
}
#endif
+ /* FIXME: Bandaid to save us from old primitives which go to NR_CPUS. */
+ if (*mask) {
+ unsigned int tail;
+ tail = BITS_TO_LONGS(NR_CPUS - nr_cpumask_bits) * sizeof(long);
+ memset(cpumask_bits(*mask) + cpumask_size() - tail,
+ 0, tail);
+ }
+
return *mask != NULL;
}
EXPORT_SYMBOL(alloc_cpumask_var_node);

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