diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-03-30 10:41:04 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-04-17 11:23:40 +1000 |
| commit | 7d6e7f7ffaba4e013c7a0589140431799bc17985 (patch) | |
| tree | e562ffe3cd9799537221f9277e36787412ef2f40 /arch/powerpc/include | |
| parent | 691e95fd7396905a38d98919e9c150dbc3ea21a3 (diff) | |
powerpc/mm/thp: Return pte address if we find trans_splitting.
For THP that is marked trans splitting, we return the pte.
This require the callers to handle the pmd_trans_splitting scenario,
if they care. All the current callers are either looking at pfn or
write_ok, hence we don't need to update them.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s_64.h | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h index 23b724c746e9..ce5610aa124c 100644 --- a/arch/powerpc/include/asm/kvm_book3s_64.h +++ b/arch/powerpc/include/asm/kvm_book3s_64.h @@ -281,11 +281,9 @@ static inline int hpte_cache_flags_ok(unsigned long ptel, unsigned long io_type) /* * If it's present and writable, atomically set dirty and referenced bits and - * return the PTE, otherwise return 0. If we find a transparent hugepage - * and if it is marked splitting we return 0; + * return the PTE, otherwise return 0. */ -static inline pte_t kvmppc_read_update_linux_pte(pte_t *ptep, int writing, - unsigned int hugepage) +static inline pte_t kvmppc_read_update_linux_pte(pte_t *ptep, int writing) { pte_t old_pte, new_pte = __pte(0); @@ -301,12 +299,6 @@ static inline pte_t kvmppc_read_update_linux_pte(pte_t *ptep, int writing, cpu_relax(); continue; } -#ifdef CONFIG_TRANSPARENT_HUGEPAGE - /* If hugepage and is trans splitting return None */ - if (unlikely(hugepage && - pmd_trans_splitting(pte_pmd(old_pte)))) - return __pte(0); -#endif /* If pte is not present return None */ if (unlikely(!(pte_val(old_pte) & _PAGE_PRESENT))) return __pte(0); |