Messages in this thread | | | Date | Wed, 6 Sep 2006 10:01:29 +0200 | From | Heiko Carstens <> | Subject | Re: lockdep oddity |
| |
On Wed, Sep 06, 2006 at 12:47:24AM -0700, Andrew Morton wrote: > On Wed, 6 Sep 2006 09:20:43 +0200 > Heiko Carstens <heiko.carstens@de.ibm.com> wrote: > > > I'm also wondering why the profile > > patch contains this: > > > > + if (ret) > > + likeliness->count[1]++; > > + else > > + likeliness->count[0]++; > > > > This isn't smp safe. Is that on purpose or a bug? > > Purposeful. This is called from all contexts, including NMI.
Why not use atomic_inc then? Or is there some architecture dependent limitation that it can't be done in every context? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |