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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)
107 dump_stack(); 107 dump_stack();
108 } 108 }
109#endif 109#endif
110 /* FIXME: Bandaid to save us from old primitives which go to NR_CPUS. */
111 if (*mask) {
112 unsigned int tail;
113 tail = BITS_TO_LONGS(NR_CPUS - nr_cpumask_bits) * sizeof(long);
114 memset(cpumask_bits(*mask) + cpumask_size() - tail,
115 0, tail);
116 }
117
110 return *mask != NULL; 118 return *mask != NULL;
111} 119}
112EXPORT_SYMBOL(alloc_cpumask_var_node); 120EXPORT_SYMBOL(alloc_cpumask_var_node);