[PATCH 2/3] libxlog: sync up with 2.6.38 kernel code

[Dave Chinner]

On Mon, Jan 24, 2011 at 03:47:32AM -0500, Christoph Hellwig wrote:
> > +typedef	int32_t	atomic_t;
> > +typedef	int64_t	atomic64_t;
> > +
> > +#define atomic_inc_return(x)	(++(*(x)))
> > +#define atomic_dec_return(x)	(--(*(x)))
> > +
> > +#define atomic64_read(x)	*(x)
> > +#define atomic64_set(x, v)	(*(x) = v)
> 
> These defintions are pretty dangerous if we ever happens to use
> them in multi-threaded code like repair.   Currently we're not,
> but they should grow a larger warning comment.

Ok, I'll add a warning to that effect.

> > --- /dev/null
> > +++ b/include/hlist.h
> 
> Why not add the hlist helpers to list.h, like in the kernel tree?

It was just a side effect of the process I followed to add the bits
of missing functionality that were needed. I can add it to list.h if
you want, but I don't think it really matters either way...

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com