linux-kernel - Re: [v3 2/4] memblock: pass memblock_type to memblock_setclr

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Date:   Mon, 28 Aug 2023 10:37:39 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Usama Arif <usama.arif@...edance.com>
Cc:     linux-mm@...ck.org, muchun.song@...ux.dev, mike.kravetz@...cle.com,
        linux-kernel@...r.kernel.org, songmuchun@...edance.com,
        fam.zheng@...edance.com, liangma@...ngbit.com,
        punit.agrawal@...edance.com
Subject: Re: [v3 2/4] memblock: pass memblock_type to memblock_setclr_flag

On Fri, Aug 25, 2023 at 12:18:34PM +0100, Usama Arif wrote:
> This allows setting flags to both memblock types and is in preparation for
> setting flags (for e.g. to not initialize struct pages) on reserved
> memory region.
> 
> Signed-off-by: Usama Arif <usama.arif@...edance.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>

> ---
>  mm/memblock.c | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/mm/memblock.c b/mm/memblock.c
> index f9e61e565a53..43cb4404d94c 100644
> --- a/mm/memblock.c
> +++ b/mm/memblock.c
> @@ -896,10 +896,9 @@ int __init_memblock memblock_physmem_add(phys_addr_t base, phys_addr_t size)
>   *
>   * Return: 0 on success, -errno on failure.
>   */
> -static int __init_memblock memblock_setclr_flag(phys_addr_t base,
> -				phys_addr_t size, int set, int flag)
> +static int __init_memblock memblock_setclr_flag(struct memblock_type *type,
> +				phys_addr_t base, phys_addr_t size, int set, int flag)
>  {
> -	struct memblock_type *type = &memblock.memory;
>  	int i, ret, start_rgn, end_rgn;
>  
>  	ret = memblock_isolate_range(type, base, size, &start_rgn, &end_rgn);
> @@ -928,7 +927,7 @@ static int __init_memblock memblock_setclr_flag(phys_addr_t base,
>   */
>  int __init_memblock memblock_mark_hotplug(phys_addr_t base, phys_addr_t size)
>  {
> -	return memblock_setclr_flag(base, size, 1, MEMBLOCK_HOTPLUG);
> +	return memblock_setclr_flag(&memblock.memory, base, size, 1, MEMBLOCK_HOTPLUG);
>  }
>  
>  /**
> @@ -940,7 +939,7 @@ int __init_memblock memblock_mark_hotplug(phys_addr_t base, phys_addr_t size)
>   */
>  int __init_memblock memblock_clear_hotplug(phys_addr_t base, phys_addr_t size)
>  {
> -	return memblock_setclr_flag(base, size, 0, MEMBLOCK_HOTPLUG);
> +	return memblock_setclr_flag(&memblock.memory, base, size, 0, MEMBLOCK_HOTPLUG);
>  }
>  
>  /**
> @@ -957,7 +956,7 @@ int __init_memblock memblock_mark_mirror(phys_addr_t base, phys_addr_t size)
>  
>  	system_has_some_mirror = true;
>  
> -	return memblock_setclr_flag(base, size, 1, MEMBLOCK_MIRROR);
> +	return memblock_setclr_flag(&memblock.memory, base, size, 1, MEMBLOCK_MIRROR);
>  }
>  
>  /**
> @@ -977,7 +976,7 @@ int __init_memblock memblock_mark_mirror(phys_addr_t base, phys_addr_t size)
>   */
>  int __init_memblock memblock_mark_nomap(phys_addr_t base, phys_addr_t size)
>  {
> -	return memblock_setclr_flag(base, size, 1, MEMBLOCK_NOMAP);
> +	return memblock_setclr_flag(&memblock.memory, base, size, 1, MEMBLOCK_NOMAP);
>  }
>  
>  /**
> @@ -989,7 +988,7 @@ int __init_memblock memblock_mark_nomap(phys_addr_t base, phys_addr_t size)
>   */
>  int __init_memblock memblock_clear_nomap(phys_addr_t base, phys_addr_t size)
>  {
> -	return memblock_setclr_flag(base, size, 0, MEMBLOCK_NOMAP);
> +	return memblock_setclr_flag(&memblock.memory, base, size, 0, MEMBLOCK_NOMAP);
>  }
>  
>  static bool should_skip_region(struct memblock_type *type,
> -- 
> 2.25.1
> 

-- 
Sincerely yours,
Mike.