linux-kernel - Re: [patch 5/3] fastboot: sync the async execution before late

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Message-ID: <488F84ED.9010200@keyaccess.nl>
Date:	Tue, 29 Jul 2008 23:00:29 +0200
From:	Rene Herman <rene.herman@...access.nl>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	Simon Arlott <simon@...e.lp0.eu>,
	Alan Stern <stern@...land.harvard.edu>,
	Daniel Walker <dwalker@...sta.com>
Subject: Re: [patch 5/3] fastboot: sync the async execution before late_initcall
 and move level 6s (sync) first

On 20-07-08 18:00, Arjan van de Ven wrote:

> From: Arjan van de Ven <arjan@...ux.intel.com>
> Subject: [PATCH] fastboot: sync the async execution before late_initcall and move level 6s (sync) first

> Second, this patch makes sure that level 6s (sync) happens before the async code starts,
> and puts a user in driver/pci in this category that needs to happen before device init.

[ ... ]

> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index 44a46c9..d75295d 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -1889,7 +1889,7 @@ static int __devinit pci_setup(char *str)
>  }
>  early_param("pci", pci_setup);
>  
> -device_initcall(pci_init);
> +device_initcall_sync(pci_init);
>  
>  EXPORT_SYMBOL(pci_reenable_device);
>  EXPORT_SYMBOL(pci_enable_device_io);
> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
> index 39c1afc..514dbdf 100644
> --- a/include/asm-generic/vmlinux.lds.h
> +++ b/include/asm-generic/vmlinux.lds.h
> @@ -372,11 +372,12 @@
>    	*(.initcall5.init)						\
>    	*(.initcall5s.init)						\
>  	*(.initcallrootfs.init)						\
> +  	*(.initcall6s.init)						\
>  	__async_initcall_start = .;					\
>  	*(.initcall6a.init)						\
>  	__async_initcall_end = .;					\
>    	*(.initcall6.init)						\
> -  	*(.initcall6s.init)						\
> +	__device_initcall_end = .;					\
>    	*(.initcall7.init)						\
>    	*(.initcall7s.init)

Isn't this a bit confusing? All the other sync levels are directly after 
their respective levels. I can see why you want another level now, but 
shouldn't that mean late_initcall now wants to be 8, device_initcall 7 
and your new 6s just 6 (device_core_initcall or something...)?

Rene.
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