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Date: Wed, 6 Mar 2019 15:50:19 +0000 From: Steven Price <steven.price@....com> To: linux-mm@...ck.org Cc: Steven Price <steven.price@....com>, Andy Lutomirski <luto@...nel.org>, Ard Biesheuvel <ard.biesheuvel@...aro.org>, Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>, Catalin Marinas <catalin.marinas@....com>, Dave Hansen <dave.hansen@...ux.intel.com>, Ingo Molnar <mingo@...hat.com>, James Morse <james.morse@....com>, Jérôme Glisse <jglisse@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will.deacon@....com>, x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Mark Rutland <Mark.Rutland@....com>, "Liang, Kan" <kan.liang@...ux.intel.com>, "David S. Miller" <davem@...emloft.net>, sparclinux@...r.kernel.org Subject: [PATCH v4 07/19] sparc: mm: Add p?d_large() definitions walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_large() functions/macros. For sparc 64 bit, pmd_large() and pud_large() are already provided, so add #defines to prevent the generic versions (added in a later patch) from being used. CC: "David S. Miller" <davem@...emloft.net> CC: sparclinux@...r.kernel.org Signed-off-by: Steven Price <steven.price@....com> --- arch/sparc/include/asm/pgtable_64.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 1393a8ac596b..f502e937c8fe 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -713,6 +713,7 @@ static inline unsigned long pte_special(pte_t pte) return pte_val(pte) & _PAGE_SPECIAL; } +#define pmd_large pmd_large static inline unsigned long pmd_large(pmd_t pmd) { pte_t pte = __pte(pmd_val(pmd)); @@ -894,6 +895,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud) #define pgd_present(pgd) (pgd_val(pgd) != 0U) #define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0UL) +#define pud_large pud_large static inline unsigned long pud_large(pud_t pud) { pte_t pte = __pte(pud_val(pud)); -- 2.20.1
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