Re: [rfc] [patch] consolidate/clean up spinlock.h files

[Ingo Molnar <mingo@elte.hu>]

* Ingo Oeser <ioe-lkml@axxeo.de> wrote:

> Hi Ingo,
> you wrote:
> 
> > --- linux/lib/spinlock_debug.c.orig
> > +++ linux/lib/spinlock_debug.c
> > +#define SPIN_BUG_ON(cond, lock, msg) \
> > +		if (unlikely(cond)) spin_bug(lock, __FILE__, __LINE__, msg)
> > +#define RWLOCK_BUG_ON(cond, lock, msg) \
> > +		if (unlikely(cond)) rwlock_bug(lock, __FILE__, __LINE__, msg)
> 
> I would suggest propagating the __FILE__ and __LINE__ from the CALLERS 
> of those functions in lib/spinlock_debug.c into these macros, to make 
> this info more useful. At the moment you just know, that the bug 
> happend on some spinlock/rwlock, but not who caused this.

the real call site info comes from dump_stack(). Maybe i should remove 
the __FILE__,__LINE__ info altogether. (albeit a bit redundancy wont 
hurt) I dont think we want to pass in __FILE__,__LINE__ all the way from 
the main APIs.

	Ingo