On Thu, 6 Jul 2006, Chris Friesen wrote: > > The C standard requires the use of volatile for signal handlers and setjmp. Actually, the C standard requires "sigatomic_t". > For userspace at least the whole discussion of "barriers" is sort of > moot--there are no memory barriers defined in the C language, which makes it > kind of hard to write portable code that uses them. Any locking primitive BY DEFINITION has a barrier in it. If it doesn't, it's not a locking primitive, it's a random sequence of code that does something pointless. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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