On Tue, 27 May 2008, Linus Torvalds wrote: > > Here's a UNTESTED patch for x86 that may or may not compile and work, and > which serializes (on a compiler level) the IO accesses against regular > memory accesses. Ok, so it at least boots on x86-32. Thus probably on x86-64 too (since the code is now shared). I didn't look at whether it generates much bigger code due to the potential extra serialization, but some of the code generation I looked at looked fine. IOW, it doesn't at least create any _obviously_ worse code, and it should be arguably safer than assuming the compiler does volatile accesses the way we want it to. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
