linux-kernel - Re: + oom-move-prototypes-to-appropriate-header-file.patch added to -mm tree

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Message-ID: <20070921170548.GA1857@martell.zuzino.mipt.ru>
Date:	Fri, 21 Sep 2007 21:05:48 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	rientjes@...gle.com, andrea@...e.de, clameter@....com
Subject: Re: + oom-move-prototypes-to-appropriate-header-file.patch added to -mm tree

On Fri, Sep 21, 2007 at 02:10:55AM -0700, akpm@...ux-foundation.org wrote:
> Move the OOM killer's extern function prototypes to include/linux/oom.h and
> include it where necessary.
> 
> Cc: Andrea Arcangeli <andrea@...e.de>
> Acked-by: Christoph Lameter <clameter@....com>

NAK. Target in corresponding Kbuild is wrong. sched.h is overkill.
Could we please also drop extern's while in protos?

> --- a/drivers/char/sysrq.c~oom-move-prototypes-to-appropriate-header-file
> +++ a/drivers/char/sysrq.c
> @@ -36,6 +36,7 @@
>  #include <linux/kexec.h>
>  #include <linux/irq.h>
>  #include <linux/hrtimer.h>
> +#include <linux/oom.h>
>  
>  #include <asm/ptrace.h>
>  #include <asm/irq_regs.h>
> diff -puN include/linux/oom.h~oom-move-prototypes-to-appropriate-header-file include/linux/oom.h
> --- a/include/linux/oom.h~oom-move-prototypes-to-appropriate-header-file
> +++ a/include/linux/oom.h
> @@ -1,10 +1,19 @@
>  #ifndef __INCLUDE_LINUX_OOM_H
>  #define __INCLUDE_LINUX_OOM_H
>  
> +#include <linux/sched.h>
> +
>  /* /proc/<pid>/oom_adj set to -17 protects from the oom-killer */
>  #define OOM_DISABLE (-17)
>  /* inclusive */
>  #define OOM_ADJUST_MIN (-16)
>  #define OOM_ADJUST_MAX 15
>  
> -#endif
> +#ifdef __KERNEL__
> +
> +extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order);
> +extern int register_oom_notifier(struct notifier_block *nb);
> +extern int unregister_oom_notifier(struct notifier_block *nb);
-
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