On 12/04/2014 01:27 AM, Paul E. McKenney wrote: > For the moment, I applied this to -rcu against v3.18-rc6 to get some 0day > testing on it. > > There are conflicts against the tip of my tree, but will worry about > that later. I don't have a ready answer on whether or not this needs > to be split up -- in the worst case, we would add the SRCU Kconfig > parameter, add all the selects, then once they all hit mainline add the > Makefile change. > > We will need stats on how much memory was saved, and a "size > kernel/rcu/srcu.o" > after a UP/tiny build should do it. Could you please add this to the > commit log? >
So if we do not select CONFIG_SRCU, srcu.o will not be compiled at all. So we should save about text data bss dec hex filename 2007 0 0 2007 7d7 kernel/rcu/srcu.o as in size of arch/powerpc/boot/zImage changes from text data bss dec hex filename 831552 64180 23944 919676 e087c arch/powerpc/boot/zImage : before 829504 64180 23952 917636 e0084 arch/powerpc/boot/zImage : after so about ~2000 bytes I guess. -- Pranith -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
