atomic: add atomic_interrupt_fence()
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Authored by kib on Feb 24 2021, 10:50 AM.

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rGe2494f7561c8: atomic: add atomic_interrupt_fence()

Summary

with the semantic following C11 signal_fence, that is, it establishes ordering between its place and any interrupt handler executing on the same CPU.

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rG FreeBSD src repository

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kib requested review of this revision.Feb 24 2021, 10:50 AM

kib created this revision.

This revision is now accepted and ready to land.Feb 24 2021, 10:56 AM

Thanks.

rlibby added inline comments.

share/man/man9/atomic.9
34	Comma?
298–305	Apologies in advance for nitpicking grammar, but since this is the man page (which by the way is excellent overall): Interrupt Fence Operation I think should be plural, like `Thread Fence Operations` is. It is modelled after similar C11 function .Fn atomic_signal_fence() , adapted for the kernel environment. Suggestions: It is modelled after the similar C11 function .Fn atomic_signal_fence() , and adapted for the kernel environment. Additionally my spell check wants "modelled" to have one L, but I think this is a regional thing and I'm not sure if we're consistent about that.