[RFC][PATCH 0/5] arch: atomic rework

[Ramana Radhakrishnan]

On 02/06/14 18:25, David Howells wrote:
>
> Is it worth considering a move towards using C11 atomics and barriers and
> compiler intrinsics inside the kernel?  The compiler _ought_ to be able to do
> these.


It sounds interesting to me, if we can make it work properly and 
reliably. + gcc@gcc.gnu.org for others in the GCC community to chip in.

>
> One thing I'm not sure of, though, is how well gcc's atomics will cope with
> interrupt handlers touching atomics on CPUs without suitable atomic
> instructions - that said, userspace does have to deal with signals getting
> underfoot. but then userspace can't normally disable interrupts.
>
> David
>

Ramana