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-rw-r--r--include/linux/percpu_counter.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index b84fc8667de..438a170187e 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -105,4 +105,9 @@ static inline void percpu_counter_dec(struct percpu_counter *fbc)
percpu_counter_add(fbc, -1);
}
+static inline void percpu_counter_sub(struct percpu_counter *fbc, s64 amount)
+{
+ percpu_counter_add(fbc, -amount);
+}
+
#endif /* _LINUX_PERCPU_COUNTER_H */