On Sat, 1 Sep 2007, Andi Kleen wrote: > > > 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.
