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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2024-07-02 15:51:20 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-13 00:52:15 +0200 |
| commit | e6c0c03245b14d6c205814aee67128257d0bea84 (patch) | |
| tree | 7d814f43ae1356b12e3762f8b9d572b91adf8e9a /arch/arm | |
| parent | mm: define __pte_leaf_size() to also take a PMD entry (diff) | |
| download | linux-e6c0c03245b14d6c205814aee67128257d0bea84.tar.xz linux-e6c0c03245b14d6c205814aee67128257d0bea84.zip | |
mm: provide mm_struct and address to huge_ptep_get()
On powerpc 8xx huge_ptep_get() will need to know whether the given ptep is
a PTE entry or a PMD entry. This cannot be known with the PMD entry
itself because there is no easy way to know it from the content of the
entry.
So huge_ptep_get() will need to know either the size of the page or get
the pmd.
In order to be consistent with huge_ptep_get_and_clear(), give mm and
address to huge_ptep_get().
Link: https://lkml.kernel.org/r/cc00c70dd384298796a4e1b25d6c4eb306d3af85.1719928057.git.christophe.leroy@csgroup.eu
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/hugetlb-3level.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h index a30be5505793..87d48e2d90ad 100644 --- a/arch/arm/include/asm/hugetlb-3level.h +++ b/arch/arm/include/asm/hugetlb-3level.h @@ -13,12 +13,12 @@ /* * If our huge pte is non-zero then mark the valid bit. - * This allows pte_present(huge_ptep_get(ptep)) to return true for non-zero + * This allows pte_present(huge_ptep_get(mm,addr,ptep)) to return true for non-zero * ptes. * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes). */ #define __HAVE_ARCH_HUGE_PTEP_GET -static inline pte_t huge_ptep_get(pte_t *ptep) +static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t retval = *ptep; if (pte_val(retval)) |