Messages in this thread | | | Date | Wed, 31 Jan 2018 14:05:51 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH] mm: Remove PG_highmem description |
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On Wed 31-01-18 17:33:32, miles.chen@mediatek.com wrote: > From: Miles Chen <miles.chen@mediatek.com> > > The commit cbe37d093707 ("[PATCH] mm: remove PG_highmem") has removed > PG_highmem to save a page flag. So the description of PG_highmem > is no longer needed, remove it. > > Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Acked-by: Michal Hocko <mhocko@suse.com>
> --- > include/linux/page-flags.h | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index 3ec44e27aa9d..50c2b8786831 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -46,11 +46,6 @@ > * guarantees that this bit is cleared for a page when it first is entered into > * the page cache. > * > - * PG_highmem pages are not permanently mapped into the kernel virtual address > - * space, they need to be kmapped separately for doing IO on the pages. The > - * struct page (these bits with information) are always mapped into kernel > - * address space... > - * > * PG_hwpoison indicates that a page got corrupted in hardware and contains > * data with incorrect ECC bits that triggered a machine check. Accessing is > * not safe since it may cause another machine check. Don't touch! > -- > 2.12.5 >
-- Michal Hocko SUSE Labs
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