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From: Christoph Lameter on 25 Jun 2010 12:10 On Fri, 25 Jun 2010, Rusty Russell wrote: > Even better would be to point to the fixed "one cpu" and "all cpus" > masks where possible, and make a copy when setting it to something > else. But you'd have to track down those naughty places which frob it > directly... Put it into a read only segment? What is the estimated performance impact of adding a level of indirection (and a potential cache miss) to a number of critical code paths? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |