__volatile__ __asm__

volatile is a C keyword, and programmers know better than using asm as an identifier. Why do people insist on using double underscores around them, especially Linux kernel developers?

Also, why do people use things like __attribute__((aligned(n))) instead of defining a macro ALIGNED(n)?

>>6
I write kernel code so it appears a lot.
You are retarded. In fact this entire thread is retarded.

"Declaring your variables volatile will have no useful effect, and will simply cause your code to run a *lot* slower when you turn on optimisation in your compiler." - Bryan O' Sullivan

"...the use of volatile accomplishes nothing but to prevent the compiler from making useful and desirable optimizations, providing no help whatsoever in making code "thread safe". " - David Butenhof

http://software.intel.com/en-us/blogs/2007/11/30/volatile-almost-useless-for-multi-threaded-programming/