Re: [PATCH] mm: fremap use linux header

[Rik van Riel]

On 10/02/2014 11:34 AM, Paul McQuade wrote:
> Use #include <linux/mmu_context.h> instead of <asm/mmu_context.h>

linux/mmu_context.h does not include asm/mmu_context.h

This leads me to believe that either fremap.c does not use
any definitions from either mmu_context.h file, or after
your change the code that fremap.c needs is no longer directly
included (but only imported indirectly due to sheer luck).

Could you verify which of these is the case?

If fremap.c is not using any code from mmu_context.h, we are
better off simply removing that line, instead of replacing it
with an unnecessary include...

> diff --git a/mm/fremap.c b/mm/fremap.c
> index 72b8fa3..d614f1c 100644
> --- a/mm/fremap.c
> +++ b/mm/fremap.c
> @@ -1,6 +1,6 @@
>  /*
>   *   linux/mm/fremap.c
> - * 
> + *
>   * Explicit pagetable population and nonlinear (random) mappings support.
>   *
>   * started by Ingo Molnar, Copyright (C) 2002, 2003
> @@ -16,8 +16,8 @@
>  #include <linux/rmap.h>
>  #include <linux/syscalls.h>
>  #include <linux/mmu_notifier.h>
> +#include <linux/mmu_context.h>
>  
> -#include <asm/mmu_context.h>
>  #include <asm/cacheflush.h>
>  #include <asm/tlbflush.h>
>  
> 

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