Messages in this thread | | | Date | Fri, 7 Jan 2022 16:08:25 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] mm: remove offset check on page->compound_head and folio->lru |
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On Fri, 7 Jan 2022 22:11:20 +0000 Matthew Wilcox <willy@infradead.org> wrote:
> On Fri, Jan 07, 2022 at 01:40:59PM +0000, Wei Yang wrote: > > On Fri, Jan 07, 2022 at 03:59:01AM +0000, Matthew Wilcox wrote: > > >On Thu, Jan 06, 2022 at 11:52:54PM +0000, Wei Yang wrote: > > >> FOLIO_MATCH() is used to make sure struct page and folio has identical > > >> layout for the first several words. > > >> > > >> The comparison of offset between page->compound_head and folio->lru is > > >> more like an internal check in struct page. > > >> > > >> This patch just removes it. > > >> > > >> Signed-off-by: Wei Yang <richard.weiyang@gmail.com> > > > > > >No. > > > > Hi, Matthew > > > > Would you mind sharing some insight on this check? > > It's right there in the comments.
Well I can't figure out which comment you're referring to?
> If you can't be bothered to read, why should I write?
I don't think the punishment comes close to fitting the crime here :(
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