Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 07 Dec 2018 10:45:13 -0800 (PST) | Subject | Re: [PATCH RFC 4/7] riscv/vdso: don't clear PG_reserved | From | Palmer Dabbelt <> |
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On Wed, 05 Dec 2018 04:28:48 PST (-0800), david@redhat.com wrote: > The VDSO is part of the kernel image and therefore the struct pages are > marked as reserved during boot. > > As we install a special mapping, the actual struct pages will never be > exposed to MM via the page tables. We can therefore leave the pages > marked as reserved. > > Cc: Palmer Dabbelt <palmer@sifive.com> > Cc: Albert Ou <aou@eecs.berkeley.edu> > Cc: Tobias Klauser <tklauser@distanz.ch> > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Michal Hocko <mhocko@kernel.org> > Cc: Matthew Wilcox <willy@infradead.org> > Signed-off-by: David Hildenbrand <david@redhat.com> > --- > arch/riscv/kernel/vdso.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c > index 582cb153eb24..0cd044122234 100644 > --- a/arch/riscv/kernel/vdso.c > +++ b/arch/riscv/kernel/vdso.c > @@ -54,7 +54,6 @@ static int __init vdso_init(void) > struct page *pg; > > pg = virt_to_page(vdso_start + (i << PAGE_SHIFT)); > - ClearPageReserved(pg); > vdso_pagelist[i] = pg; > } > vdso_pagelist[i] = virt_to_page(vdso_data);
I'm going to assume this will go in through another tree along with the rest of the set assuming everyone else is happy with it.
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Thanks!
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