On Thu, 2008-02-21 at 17:40 -0300, Glauber Costa wrote:
quoted text
> This patch makes the work field in create_idle have
> a static address. Otherwise, being a stack variable, it can
> boild down the lockdep system.

Looks way overkill. Doesn't something like:

quoted text
> Signed-off-by: Glauber Costa <gcosta@redhat.com>
> ---
>  arch/x86/kernel/smpboot_64.c |   13 +++++++------
>  1 files changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
> index f15b774..d79b7a8 100644
> --- a/arch/x86/kernel/smpboot_64.c
> +++ b/arch/x86/kernel/smpboot_64.c

quoted text
> @@ -553,12 +554,12 @@ static int __cpuinit do_boot_cpu(int cpu
>  	unsigned long boot_error;
>  	int timeout;
>  	unsigned long start_rip;
> 	struct create_idle create_idle = {
> -		.work = __WORK_INITIALIZER(create_idle.work, do_fork_idle),
> 		.cpu = cpu,
> 		.done = COMPLETION_INITIALIZER_ONSTACK(create_idle.done),
> 	};
> +	INIT_WORK(&create_idle.work, do_fork_idle);

work?

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