Re: [PATCH] arm: flush: check if the folio is reserved for IMO addresses

[Yongqiang Liu]

在 2024/2/22 22:05, Matthew Wilcox 写道:
> On Thu, Feb 22, 2024 at 10:01:47PM +0800, Yongqiang Liu wrote:
> > @@ -296,6 +297,9 @@ void __sync_icache_dcache(pte_t pteval)
> >   		return;
> >   
> >   	folio = page_folio(pfn_to_page(pfn));
> > +	if (test_bit(PG_reserved, &folio->flags))
> > +		return;
> Why are you using PG_foo directly instead of the helpers?
>
> 	if (folio_test_reserved(folio))
> .
Sorry, I will send v2.