On Wed, 16 Apr 2014, Peter Zijlstra wrote: > You really want to disable preemption around there. The proper old way > would've been get_cpu_var()/put_cpu_var().
get_cpu_var and put_cpu_var is still the correct way of doing things if you need to access multiple per cpu variables. The problem that I want to solve is the varied use of __get_cpu_var for address calculations, per cpu variable assignment, structure copying and per cpu variable access. The this_cpu ops can avoid address calculations using segment prefixes. Plus the changes clarify what is actuallly going on. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
