linux-kernel - Re: [PATCHv4 1/6] actual sys

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Date:	Tue, 20 Nov 2007 08:04:14 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Ulrich Drepper <drepper@...hat.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	tglx@...utronix.de, torvalds@...ux-foundation.org
Subject: Re: [PATCHv4 1/6] actual sys_indirect code


cool patchset. Small nit, the series is not bisectable:

> +#include <asm/indirect.h>

> --- kernel/Makefile
> +++ kernel/Makefile
> @@ -9,7 +9,7 @@ obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
>  	    rcupdate.o extable.o params.o posix-timers.o \
>  	    kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
>  	    hrtimer.o rwsem.o latency.o nsproxy.o srcu.o \
> -	    utsname.o notifier.o
> +	    utsname.o notifier.o indirect.o

indirect.o is built unconditionally, but it wont build at this stage 
because asm/indirect.h is only introduced in later patches. I suspect a 
CONFIG_ARCH_SUPPORTS_INDIRECT_SYSCALLS Kconfig flag, and its use in the 
Makefile ought to do the trick. (it also reduces object size on 
architectures that have no support for indirect syscalls (yet))

	Ingo
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