Messages in this thread | | | Date | Wed, 17 Jun 2020 11:57:08 +0100 | From | Will Deacon <> | Subject | Re: [PATCH 0/3] Fix build failure with v5.8-rc1 |
| |
[+Arnd in case he's interested in this series]
On Mon, Jun 15, 2020 at 12:57:55PM +0000, Christophe Leroy wrote: > Commit 2ab3a0a02905 ("READ_ONCE: Enforce atomicity for > {READ,WRITE}_ONCE() memory accesses") leads to following build > failure on powerpc 8xx. > > To fix it, this small series introduces a new helper named ptep_get() > to replace the direct access with READ_ONCE(). This new helper > can be overriden by architectures.
Thanks for doing this, and sorry for the breakage. For the series:
Acked-by: Will Deacon <will@kernel.org>
Hopefully we can introduce accessors for the other page-table levels too, but that can obviously happen incrementally.
Will
> Christophe Leroy (3): > mm/gup: Use huge_ptep_get() in gup_hugepte() > mm: Allow arches to provide ptep_get() > powerpc/8xx: Provide ptep_get() with 16k pages > > arch/powerpc/include/asm/nohash/32/pgtable.h | 10 ++++++++++ > include/asm-generic/hugetlb.h | 2 +- > include/linux/pgtable.h | 7 +++++++ > mm/gup.c | 4 ++-- > 4 files changed, 20 insertions(+), 3 deletions(-) > > -- > 2.25.0 >
| |