Re: [PATCH v2 1/3] locking: Document the semantics of spin_is_locked()

[David Howells]

Andrea Parri <andrea.parri@xxxxxxxxxxxxxxxxxxxx> wrote:

> > It's more complicated than that.  This function is dangerous and should be
> > used with extreme care.  In the case where CONFIG_SMP=n the value is locked
> > one way or the other and it might be the wrong way.
> 
> You mean "unlocked"? (aka, return 0)

No, I mean "fixed", sorry.  We've had problems stemming from this before on UP
systems.

David