On Mon, Sep 22, 2014 at 4:08 PM, Peter Zijlstra <pet...@infradead.org> wrote: > On Mon, Sep 22, 2014 at 03:39:21PM -0400, Pranith Kumar wrote: >> All the atomic operations have volatile semantics to prevent compiler >> reordering. Enforce the same semantics for atomic_set() too. > > To what point? atomic_set() is typically not what you expect it to > anyhow.
This is the only atomic operation which allows compiler reordering. I am not sure why this exception was made. Any ideas as to why we do this? As I mentioned, this patch removes this inconsistency by disallowing compiler reordering. -- Pranith -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
