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Message-ID: <adefc8e2f4608ddfb64a27213d87c17e6d8f069d.1694443576.git.christophe.leroy@csgroup.eu>
Date: Mon, 11 Sep 2023 21:03:14 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Michael Ellerman <mpe@...erman.id.au>,
Nicholas Piggin <npiggin@...il.com>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>,
linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v1 08/19] powerpc/nohash: Remove {pte/pmd}_protnone()
Only book3s/64 selects ARCH_SUPPORTS_NUMA_BALANCING so
CONFIG_NUMA_BALANCING can't be selected on nohash targets.
Remove pte_protnone() and pmd_protnone().
Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
arch/powerpc/include/asm/nohash/pgtable.h | 17 -----------------
1 file changed, 17 deletions(-)
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
index a9056f4fad48..ab26af2b421a 100644
--- a/arch/powerpc/include/asm/nohash/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -35,23 +35,6 @@ static inline bool pte_hashpte(pte_t pte) { return false; }
static inline bool pte_ci(pte_t pte) { return pte_val(pte) & _PAGE_NO_CACHE; }
static inline bool pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_EXEC; }
-#ifdef CONFIG_NUMA_BALANCING
-/*
- * These work without NUMA balancing but the kernel does not care. See the
- * comment in include/linux/pgtable.h . On powerpc, this will only
- * work for user pages and always return true for kernel pages.
- */
-static inline int pte_protnone(pte_t pte)
-{
- return pte_present(pte) && !pte_user(pte);
-}
-
-static inline int pmd_protnone(pmd_t pmd)
-{
- return pte_protnone(pmd_pte(pmd));
-}
-#endif /* CONFIG_NUMA_BALANCING */
-
static inline int pte_present(pte_t pte)
{
return pte_val(pte) & _PAGE_PRESENT;
--
2.41.0
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