Re: [PATCH 7/8] initramfs: proide a generic free_initrd_mem implementation

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> Subject: initramfs: proide a generic free_initrd_mem implementation

Nit:                ^ provide

On Wed, Feb 13, 2019 at 06:46:20PM +0100, Christoph Hellwig wrote:
> For most architectures free_initrd_mem just expands to the same
> free_reserved_area call.  Provide that as a generic implementation
> marked __weak.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  arch/alpha/mm/init.c      | 8 --------
>  arch/arc/mm/init.c        | 7 -------
>  arch/c6x/mm/init.c        | 7 -------
>  arch/h8300/mm/init.c      | 8 --------
>  arch/m68k/mm/init.c       | 7 -------
>  arch/microblaze/mm/init.c | 7 -------
>  arch/nds32/mm/init.c      | 7 -------
>  arch/nios2/mm/init.c      | 7 -------
>  arch/openrisc/mm/init.c   | 7 -------
>  arch/parisc/mm/init.c     | 7 -------
>  arch/powerpc/mm/mem.c     | 7 -------
>  arch/sh/mm/init.c         | 7 -------
>  arch/um/kernel/mem.c      | 7 -------
>  arch/unicore32/mm/init.c  | 7 -------
>  init/initramfs.c          | 5 +++++
>  15 files changed, 5 insertions(+), 100 deletions(-)
> 
> diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
> index a42fc5c4db89..97f4940f11e3 100644
> --- a/arch/alpha/mm/init.c
> +++ b/arch/alpha/mm/init.c
> @@ -291,11 +291,3 @@ free_initmem(void)
>  {
>  	free_initmem_default(-1);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void
> -free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
> index e1ab2d7f1d64..c357a3bd1532 100644
> --- a/arch/arc/mm/init.c
> +++ b/arch/arc/mm/init.c
> @@ -214,10 +214,3 @@ void __ref free_initmem(void)
>  {
>  	free_initmem_default(-1);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
> index af5ada0520be..5504b71254f6 100644
> --- a/arch/c6x/mm/init.c
> +++ b/arch/c6x/mm/init.c
> @@ -67,13 +67,6 @@ void __init mem_init(void)
>  	mem_init_print_info(NULL);
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void __init free_initmem(void)
>  {
>  	free_initmem_default(-1);
> diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
> index 6519252ac4db..2eff00de2b78 100644
> --- a/arch/h8300/mm/init.c
> +++ b/arch/h8300/mm/init.c
> @@ -101,14 +101,6 @@ void __init mem_init(void)
>  	mem_init_print_info(NULL);
>  }
> 
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void
>  free_initmem(void)
>  {
> diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
> index 933c33e76a48..c62e41563bb9 100644
> --- a/arch/m68k/mm/init.c
> +++ b/arch/m68k/mm/init.c
> @@ -144,10 +144,3 @@ void __init mem_init(void)
>  	init_pointer_tables();
>  	mem_init_print_info(NULL);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
> index b17fd8aafd64..3bd32de46abb 100644
> --- a/arch/microblaze/mm/init.c
> +++ b/arch/microblaze/mm/init.c
> @@ -186,13 +186,6 @@ void __init setup_memory(void)
>  	paging_init();
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void free_initmem(void)
>  {
>  	free_initmem_default(-1);
> diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
> index 253f79fc7196..c02e10ac5e76 100644
> --- a/arch/nds32/mm/init.c
> +++ b/arch/nds32/mm/init.c
> @@ -249,13 +249,6 @@ void free_initmem(void)
>  	free_initmem_default(-1);
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void __set_fixmap(enum fixed_addresses idx,
>  			       phys_addr_t phys, pgprot_t flags)
>  {
> diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
> index 16cea5776b87..60736a725883 100644
> --- a/arch/nios2/mm/init.c
> +++ b/arch/nios2/mm/init.c
> @@ -82,13 +82,6 @@ void __init mmu_init(void)
>  	flush_tlb_all();
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void __ref free_initmem(void)
>  {
>  	free_initmem_default(-1);
> diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
> index d157310eb377..d0d94a4391d4 100644
> --- a/arch/openrisc/mm/init.c
> +++ b/arch/openrisc/mm/init.c
> @@ -221,13 +221,6 @@ void __init mem_init(void)
>  	return;
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  void free_initmem(void)
>  {
>  	free_initmem_default(-1);
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 059187a3ded7..1b445e206ca8 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -935,10 +935,3 @@ void flush_tlb_all(void)
>  	spin_unlock(&sid_lock);
>  }
>  #endif
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
> index 33cc6f676fa6..976c706a64e2 100644
> --- a/arch/powerpc/mm/mem.c
> +++ b/arch/powerpc/mm/mem.c
> @@ -388,13 +388,6 @@ void free_initmem(void)
>  	free_initmem_default(POISON_FREE_INITMEM);
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  /*
>   * This is called when a page has been modified by the kernel.
>   * It just marks the page as not i-cache clean.  We do the i-cache
> diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
> index a8e5c0e00fca..2fa824336ec2 100644
> --- a/arch/sh/mm/init.c
> +++ b/arch/sh/mm/init.c
> @@ -410,13 +410,6 @@ void free_initmem(void)
>  	free_initmem_default(-1);
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  #ifdef CONFIG_MEMORY_HOTPLUG
>  int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
>  		bool want_memblock)
> diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
> index 799b571a8f88..48b24b63b10d 100644
> --- a/arch/um/kernel/mem.c
> +++ b/arch/um/kernel/mem.c
> @@ -172,13 +172,6 @@ void free_initmem(void)
>  {
>  }
> 
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> -
>  /* Allocate and free page tables. */
> 
>  pgd_t *pgd_alloc(struct mm_struct *mm)
> diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
> index e3f4f791e10a..01271ce52ef9 100644
> --- a/arch/unicore32/mm/init.c
> +++ b/arch/unicore32/mm/init.c
> @@ -316,10 +316,3 @@ void free_initmem(void)
>  {
>  	free_initmem_default(-1);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/init/initramfs.c b/init/initramfs.c
> index cf8bf014873f..f3aaa58ac63d 100644
> --- a/init/initramfs.c
> +++ b/init/initramfs.c
> @@ -527,6 +527,11 @@ extern unsigned long __initramfs_size;
>  #include <linux/initrd.h>
>  #include <linux/kexec.h>
> 
> +void __weak free_initrd_mem(unsigned long start, unsigned long end)
> +{
> +	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> +}
> +
>  #ifdef CONFIG_KEXEC_CORE
>  static bool kexec_free_initrd(void)
>  {
> -- 
> 2.20.1
> 

-- 
Sincerely yours,
Mike.




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