Messages in this thread | | | Date | Tue, 10 Sep 2013 10:11:56 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] [RFC] seqcount: Add lockdep functionality to seqcount/seqlock structures |
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On Mon, Sep 09, 2013 at 09:42:46PM -0700, John Stultz wrote: > +++ b/include/linux/lockdep.h > @@ -510,6 +510,21 @@ static inline void print_irqtrace_events(struct task_struct *curr) > > #ifdef CONFIG_DEBUG_LOCK_ALLOC > # ifdef CONFIG_PROVE_LOCKING > +# define seqcount_acquire(l, s, t, i) lock_acquire(l, s, t, 0, 2, NULL, i) > +# define seqcount_acquire_read(l, s, t, i) lock_acquire(l, s, t, 2, 2, NULL, i) > +# else > +# define seqcount_acquire(l, s, t, i) lock_acquire(l, s, t, 0, 1, NULL, i) > +# define seqcount_acquire_read(l, s, t, i) lock_acquire(l, s, t, 2, 1, NULL, i) > +# endif > +# define seqcount_release(l, n, i) lock_release(l, n, i) > +#else > +# define seqcount_acquire(l, s, t, i) do { } while (0) > +# define seqcount_acquire_read(l, s, t, i) do { } while (0) > +# define seqcount_release(l, n, i) do { } while (0) > +#endif
Please look at a recent lockdep.h, this pattern changed a little.
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