Messages in this thread | | | From | Dan Williams <> | Date | Wed, 9 Mar 2022 16:01:44 -0800 | Subject | Re: [PATCH v4 1/6] mm: rmap: fix cache flush on THP pages |
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On Wed, Mar 2, 2022 at 12:29 AM Muchun Song <songmuchun@bytedance.com> 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. At least, no > problems were found due to this. Maybe because the architectures that > have virtual indexed caches is less. > > Fixes: f27176cfc363 ("mm: convert page_mkclean_one() to use page_vma_mapped_walk()") > Signed-off-by: Muchun Song <songmuchun@bytedance.com> > Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
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