On Fri, Jan 21, 2022 at 03:55:14PM +0800, Muchun Song wrote:
> Reuse some infrastructure of page_mkclean_one() to let DAX can handle
> similar case to fix this issue.
Can you split out some of the infrastructure changes into proper
well-documented preparation patches?
> + pgoff_t pgoff_end =
On Fri, Jan 21, 2022 at 03:55:13PM +0800, Muchun Song wrote:
> + if (pvmw->pte && ((pvmw->flags & PVMW_PFN_WALK) ||
> !PageHuge(pvmw->page)))
Please avoid the overly long line here and in a few other places.
> +/*
> + * Then at what user virtual address will none of the page be found in vma?
On Fri, Jan 21, 2022 at 03:55:12PM +0800, Muchun Song wrote:
> The flush_cache_page() only remove a PAGE_SIZE sized range from the cache.
> However, it does not cover the full pages in a THP except a head page.
> Replace it with flush_cache_range() to fix this issue.
>
> Fixes: f729c8c9b24f ("dax:
On Fri, Jan 21, 2022 at 03:55:11PM +0800, Muchun Song wrote:
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/rmap.c b/mm/rmap.c
> index b0fd9dc19eba..65670cb805d6 100644
> --- a/mm/rmap.c
> +++ b/mm/rmap.c
> @@ -974,7 +974,7 @@ static bool page_mkclean_one(struct page *page, s
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