Re: [(RT RFC) PATCH v2 5/9] adaptive real-time lock support
From: Pavel Machek <hidden>
Date: 2008-02-26 18:06:26
Also in:
lkml
From: Pavel Machek <hidden>
Date: 2008-02-26 18:06:26
Also in:
lkml
On Tue 2008-02-26 08:03:43, Gregory Haskins wrote:
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On Mon, Feb 25, 2008 at 5:03 PM, in message[ref], Pavel Machek [off-list ref] wrote:quoted
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+static inline void +prepare_adaptive_wait(struct rt_mutex *lock, struct adaptive_waiter*adaptive) ...quoted
+#define prepare_adaptive_wait(lock, busy) {}This is evil. Use empty inline function instead (same for the other function, there you can maybe get away with it).I went to implement your suggested change and I remembered why I did it this way: I wanted a macro so that the "struct adaptive_waiter" local variable will fall away without an #ifdef in the main body of code. So I have left this logic alone for now.
Hmm, but inline function will allow dead code elimination, too, no?
Anyway non-evil way to do it with macro is
#define prepare_adaptive_wait(lock, busy) do {} while (0)
...that behaves properly in complex statements.
Pavel
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