[PATCH v1 13/23] erofs: implement fscache-based data read

JeffleXu jefflexu at linux.alibaba.com
Mon Jan 3 17:32:05 AEDT 2022



On 12/27/21 8:54 PM, Jeffle Xu wrote:
>  
> +static inline void do_copy_page(struct page *from, struct page *to,
> +				size_t offset, size_t len)
> +{
> +	char *vfrom, *vto;
> +
> +	vfrom = kmap_atomic(from);
> +	vto = kmap_atomic(to);
> +	memcpy(vto, vfrom + offset, len);
> +	kunmap_atomic(vto);
> +	kunmap_atomic(vfrom);
> +}
> +

It seems that this private function can be replaced by memcpy_page().
Will be done in the next version.


-- 
Thanks,
Jeffle


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