Re: [patch] lockdep: fix seqlock_init()

From: Ingo Molnar
Date: Tue Dec 12 2006 - 15:53:03 EST



* Andrew Morton <akpm@xxxxxxxx> wrote:

> On Tue, 12 Dec 2006 12:10:28 +0100
> Ingo Molnar <mingo@xxxxxxx> wrote:
>
> > +#define seqlock_init(x) \
> > + do { \
> > + (x)->sequence = 0; \
> > + spin_lock_init(&(x)->lock); \
> > + } while (0)
>
> This does not have to be a macro, does it?

Maybe it could be an __always_inline inline function (it has to be
inlined to get the callsite based lock class key right) - but i'm not
sure about the include file dependencies. Will probably work out fine as
seqlock.h is supposed to be a late one in the order of inclusion - but i
didnt want to make a blind bet.

Ingo
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