Messages in this thread |  | | Date | Thu, 06 Feb 2014 18:55:01 +0000 | From | Ramana Radhakrishnan <> | Subject | Re: [RFC][PATCH 0/5] arch: atomic rework |
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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
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