linux-kernel - Re: [PATCH] mm/sparse: Rename function related to section memmap allocation/free

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Date:   Wed, 20 Mar 2019 15:55:14 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     akpm@...ux-foundation.org, osalvador@...e.de, mhocko@...e.com,
        rppt@...ux.vnet.ibm.com, richard.weiyang@...il.com,
        linux-mm@...ck.org
Subject: Re: [PATCH] mm/sparse: Rename function related to section memmap
 allocation/free

On 03/20/19 at 03:53pm, Baoquan He wrote:
> These functions are used allocate/free section memmap, have nothing
                          ^ 'to' missed here, will update later.
> to do with kmalloc/free during the handling. Rename them to remove
> the confusion.
> 
> Signed-off-by: Baoquan He <bhe@...hat.com>
> ---
>  mm/sparse.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/mm/sparse.c b/mm/sparse.c
> index 054b99f74181..374206212d01 100644
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -579,13 +579,13 @@ void offline_mem_sections(unsigned long start_pfn, unsigned long end_pfn)
>  #endif
>  
>  #ifdef CONFIG_SPARSEMEM_VMEMMAP
> -static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
> +static inline struct page *alloc_section_memmap(unsigned long pnum, int nid,
>  		struct vmem_altmap *altmap)
>  {
>  	/* This will make the necessary allocations eventually. */
>  	return sparse_mem_map_populate(pnum, nid, altmap);
>  }
> -static void __kfree_section_memmap(struct page *memmap,
> +static void __free_section_memmap(struct page *memmap,
>  		struct vmem_altmap *altmap)
>  {
>  	unsigned long start = (unsigned long)memmap;
> @@ -603,7 +603,7 @@ static void free_map_bootmem(struct page *memmap)
>  }
>  #endif /* CONFIG_MEMORY_HOTREMOVE */
>  #else
> -static struct page *__kmalloc_section_memmap(void)
> +static struct page *__alloc_section_memmap(void)
>  {
>  	struct page *page, *ret;
>  	unsigned long memmap_size = sizeof(struct page) * PAGES_PER_SECTION;
> @@ -624,13 +624,13 @@ static struct page *__kmalloc_section_memmap(void)
>  	return ret;
>  }
>  
> -static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
> +static inline struct page *alloc_section_memmap(unsigned long pnum, int nid,
>  		struct vmem_altmap *altmap)
>  {
> -	return __kmalloc_section_memmap();
> +	return __alloc_section_memmap();
>  }
>  
> -static void __kfree_section_memmap(struct page *memmap,
> +static void __free_section_memmap(struct page *memmap,
>  		struct vmem_altmap *altmap)
>  {
>  	if (is_vmalloc_addr(memmap))
> @@ -701,7 +701,7 @@ int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
>  	usemap = __kmalloc_section_usemap();
>  	if (!usemap)
>  		return -ENOMEM;
> -	memmap = kmalloc_section_memmap(section_nr, nid, altmap);
> +	memmap = alloc_section_memmap(section_nr, nid, altmap);
>  	if (!memmap) {
>  		kfree(usemap);
>  		return -ENOMEM;
> @@ -726,7 +726,7 @@ int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
>  out:
>  	if (ret < 0) {
>  		kfree(usemap);
> -		__kfree_section_memmap(memmap, altmap);
> +		__free_section_memmap(memmap, altmap);
>  	}
>  	return ret;
>  }
> @@ -777,7 +777,7 @@ static void free_section_usemap(struct page *memmap, unsigned long *usemap,
>  	if (PageSlab(usemap_page) || PageCompound(usemap_page)) {
>  		kfree(usemap);
>  		if (memmap)
> -			__kfree_section_memmap(memmap, altmap);
> +			__free_section_memmap(memmap, altmap);
>  		return;
>  	}
>  
> -- 
> 2.17.2
>