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tunneling: Avoid extra copying if expanding headroom.
[openvswitch]
/
lib
/
bitmap.h
diff --git
a/lib/bitmap.h
b/lib/bitmap.h
index fd05d3da135457356e2e347f377059b67638831d..f6feff0859d99392f218740c2aba8f1588234103 100644
(file)
--- a/
lib/bitmap.h
+++ b/
lib/bitmap.h
@@
-1,5
+1,5
@@
/*
/*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010
, 2011
Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@
-53,6
+53,12
@@
bitmap_allocate(size_t n_bits)
return xzalloc(bitmap_n_bytes(n_bits));
}
return xzalloc(bitmap_n_bytes(n_bits));
}
+static inline unsigned long *
+bitmap_clone(const unsigned long *bitmap, size_t n_bits)
+{
+ return xmemdup(bitmap, bitmap_n_bytes(n_bits));
+}
+
static inline void
bitmap_free(unsigned long *bitmap)
{
static inline void
bitmap_free(unsigned long *bitmap)
{