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Re: [PATCH 1/2] mm, oom: introduce oom reaper

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[Re: [PATCH 1/2] mm, oom: introduce oom reaper] On 06/01/2016 (Wed 10:10) Michal Hocko wrote:

> On Mon 21-12-15 15:38:21, Paul Gortmaker wrote:
> [...]
> > ...use one of the non-modular initcalls here?   I'm trying to clean up most of
> > the non-modular uses of modular macros etc. since:
> > 
> >  (1) it is easy to accidentally code up an unused module_exit function
> >  (2) it can be misleading when reading the source, thinking it can be
> >       modular when the Makefile and/or Kconfig prohibit it
> >  (3) it requires the include of the module.h header file which in turn
> >      includes nearly everything else, thus increasing CPP overhead.
> > 
> > I figured no point in sending a follow on patch since this came in via
> > the akpm tree into next and that gets rebased/updated regularly.
> 
> Sorry for the late reply. I was mostly offline throughout the last 2
> weeks last year. Is the following what you would like to see? If yes I
> will fold it into the original patch.

Yes, that looks fine.  Do note that susbsys_initcall is earlier than the
module_init that you were using previously though.

Thanks,
Paul.
--

> 
> Thanks!
> ---
> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index 7a9678c50edd..1ece40b94725 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c
> @@ -36,7 +36,7 @@
>  #include <linux/ftrace.h>
>  #include <linux/ratelimit.h>
>  #include <linux/kthread.h>
> -#include <linux/module.h>
> +#include <linux/init.h>
>  
>  #include <asm/tlb.h>
>  #include "internal.h"
> @@ -541,7 +541,7 @@ static int __init oom_init(void)
>  	}
>  	return 0;
>  }
> -module_init(oom_init)
> +subsys_initcall(oom_init)
>  #else
>  static void wake_oom_reaper(struct mm_struct *mm)
>  {
> -- 
> Michal Hocko
> SUSE Labs
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Re: [PATCH 1/2] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-01-06 10:20 +0100
  Re: [PATCH 1/2] mm, oom: introduce oom reaper Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-01-06 15:30 +0100
    Re: [PATCH 1/2] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-01-06 16:10 +0100

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