On Sat, 1 Sep 2007, Andi Kleen wrote:

quoted

    And if we're really lucky, this might enable some additional
    optimizations on the part of the compiler.

Only if the kernel was compiled C++. C compilers generally ignore constness
for optimization purposes because it can be so easily casted away.

???

I can't speak for the exact const-ification that Jeff did in this
particular patch, but if you intended your comment up there to be a
blanket statement, then you're totally and horribly wrong. There's a
whole plethora of optimizations that gcc does when dealing with const-
marked data. If you've seen / experienced otherwise, please post some
testcases.