Re: [PATCH net-next v5 10/13] mm: page_frag: introduce prepare/probe/commit API

[Yunsheng Lin]

On 2024/5/28 20:56, Yunsheng Lin wrote:

> +#define page_frag_alloc_probe(nc, offset, fragsz, va)			\
> +({									\
> +	struct page *__page = NULL;					\
> +									\
> +	VM_BUG_ON(!*(fragsz));						\

The above above marco seems to need to include mmdebug.h explicitly
to avoid compile error for x86 system.


> +	if (likely((nc)->remaining >= *(fragsz)))			\
> +		__page = virt_to_page(__page_frag_alloc_probe(nc,	\
> +							      offset,	\
> +							      fragsz,	\
> +							      va));	\
> +									\
> +	__page;								\
> +})