On Sat, Nov 04, 2017 at 02:47:48AM +0800, Yang Shi wrote: > in_atomic() has been moved to include/linux/preempt.h, and the filemap.c > doesn't use in_atomic() directly at all, so it sounds unnecessary to > include hardirq.h. > With removing hardirq.h, around 32 bytes can be saved for x86_64 bzImage > with allnoconfig.
Wait, what? How would including an unused header file increase the size of the final image?
