Subject: [PATCH RFC 2/3] mm/treewide: rename CONFIG_HAVE_FAST_GUP to CONFIG_HAVE_GUP_FAST

From: David Hildenbrand <[email-masked]>
Date: Wed, 27 Mar 2024 14:05:37 +0100

Nowadays, we call it "GUP-fast", the external interface includes
functions like "get_user_pages_fast()", and we renamed all internal
functions to reflect that as well.

Let's make the config option reflect that.

Signed-off-by: David Hildenbrand <[email-masked]>
---
 arch/arm/Kconfig       | 2 +-
 arch/arm64/Kconfig     | 2 +-
 arch/loongarch/Kconfig | 2 +-
 arch/mips/Kconfig      | 2 +-
 arch/powerpc/Kconfig   | 2 +-
 arch/s390/Kconfig      | 2 +-
 arch/sh/Kconfig        | 2 +-
 arch/x86/Kconfig       | 2 +-
 include/linux/rmap.h   | 8 ++++----
 kernel/events/core.c   | 4 ++--
 mm/Kconfig             | 2 +-
 mm/gup.c               | 6 +++---
 mm/internal.h          | 2 +-
 13 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b14aed3a17ab..817918f6635a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -99,7 +99,7 @@ config ARM
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
 	select HAVE_EXIT_THREAD
-	select HAVE_FAST_GUP if ARM_LPAE
+	select HAVE_GUP_FAST if ARM_LPAE
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_ERROR_INJECTION
 	select HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7b11c98b3e84..de076a191e9f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -205,7 +205,7 @@ config ARM64
 	select HAVE_SAMPLE_FTRACE_DIRECT
 	select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUNCTION_ERROR_INJECTION
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index a5f300ec6f28..cd642eefd9e5 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -119,7 +119,7 @@ config LOONGARCH
 	select HAVE_EBPF_JIT
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN
 	select HAVE_EXIT_THREAD
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_ARG_ACCESS_API
 	select HAVE_FUNCTION_ERROR_INJECTION
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 06ef440d16ce..10f7c6d88163 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -68,7 +68,7 @@ config MIPS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_EBPF_JIT if !CPU_MICROMIPS
 	select HAVE_EXIT_THREAD
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1c4be3373686..e42cc8cd415f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -236,7 +236,7 @@ config PPC
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS	if ARCH_USING_PATCHABLE_FUNCTION_ENTRY || MPROFILE_KERNEL || PPC32
 	select HAVE_EBPF_JIT
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_ARG_ACCESS_API
 	select HAVE_FUNCTION_DESCRIPTORS	if PPC64_ELF_ABI_V1
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 8f01ada6845e..d9aed4c93ee6 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -174,7 +174,7 @@ config S390
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EBPF_JIT if HAVE_MARCH_Z196_FEATURES
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FENTRY
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_ARG_ACCESS_API
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 2ad3e29f0ebe..7292542f75e8 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -38,7 +38,7 @@ config SUPERH
 	select HAVE_DEBUG_BUGVERBOSE
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DYNAMIC_FTRACE
-	select HAVE_FAST_GUP if MMU
+	select HAVE_GUP_FAST if MMU
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FTRACE_MCOUNT_RECORD
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 39886bab943a..f82171292cf3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -221,7 +221,7 @@ config X86
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
 	select HAVE_EISA
 	select HAVE_EXIT_THREAD
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FENTRY			if X86_64 || DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_RETVAL	if HAVE_FUNCTION_GRAPH_TRACER
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index b7944a833668..9bf9324214fc 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -284,7 +284,7 @@ static inline int hugetlb_try_share_anon_rmap(struct folio *folio)
 	VM_WARN_ON_FOLIO(!PageAnonExclusive(&folio->page), folio);
 
 	/* Paired with the memory barrier in try_grab_folio(). */
-	if (IS_ENABLED(CONFIG_HAVE_FAST_GUP))
+	if (IS_ENABLED(CONFIG_HAVE_GUP_FAST))
 		smp_mb();
 
 	if (unlikely(folio_maybe_dma_pinned(folio)))
@@ -295,7 +295,7 @@ static inline int hugetlb_try_share_anon_rmap(struct folio *folio)
 	 * This is conceptually a smp_wmb() paired with the smp_rmb() in
 	 * gup_must_unshare().
 	 */
-	if (IS_ENABLED(CONFIG_HAVE_FAST_GUP))
+	if (IS_ENABLED(CONFIG_HAVE_GUP_FAST))
 		smp_mb__after_atomic();
 	return 0;
 }
@@ -541,7 +541,7 @@ static __always_inline int __folio_try_share_anon_rmap(struct folio *folio,
 	 */
 
 	/* Paired with the memory barrier in try_grab_folio(). */
-	if (IS_ENABLED(CONFIG_HAVE_FAST_GUP))
+	if (IS_ENABLED(CONFIG_HAVE_GUP_FAST))
 		smp_mb();
 
 	if (unlikely(folio_maybe_dma_pinned(folio)))
@@ -552,7 +552,7 @@ static __always_inline int __folio_try_share_anon_rmap(struct folio *folio,
 	 * This is conceptually a smp_wmb() paired with the smp_rmb() in
 	 * gup_must_unshare().
 	 */
-	if (IS_ENABLED(CONFIG_HAVE_FAST_GUP))
+	if (IS_ENABLED(CONFIG_HAVE_GUP_FAST))
 		smp_mb__after_atomic();
 	return 0;
 }
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 724e6d7e128f..c5a0dc1f135f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7539,7 +7539,7 @@ static u64 perf_get_pgtable_size(struct mm_struct *mm, unsigned long addr)
 {
 	u64 size = 0;
 
-#ifdef CONFIG_HAVE_FAST_GUP
+#ifdef CONFIG_HAVE_GUP_FAST
 	pgd_t *pgdp, pgd;
 	p4d_t *p4dp, p4d;
 	pud_t *pudp, pud;
@@ -7587,7 +7587,7 @@ static u64 perf_get_pgtable_size(struct mm_struct *mm, unsigned long addr)
 	if (pte_present(pte))
 		size = pte_leaf_size(pte);
 	pte_unmap(ptep);
-#endif /* CONFIG_HAVE_FAST_GUP */
+#endif /* CONFIG_HAVE_GUP_FAST */
 
 	return size;
 }
diff --git a/mm/Kconfig b/mm/Kconfig
index b1448aa81e15..5fd14a536bcc 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -473,7 +473,7 @@ config ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
 config HAVE_MEMBLOCK_PHYS_MAP
 	bool
 
-config HAVE_FAST_GUP
+config HAVE_GUP_FAST
 	depends on MMU
 	bool
 
diff --git a/mm/gup.c b/mm/gup.c
index c293aff30c5d..e35c6a6a0301 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -2463,7 +2463,7 @@ EXPORT_SYMBOL(get_user_pages_unlocked);
  *
  * This code is based heavily on the PowerPC implementation by Nick Piggin.
  */
-#ifdef CONFIG_HAVE_FAST_GUP
+#ifdef CONFIG_HAVE_GUP_FAST
 
 /*
  * Used in the GUP-fast path to determine whether GUP is permitted to work on
@@ -3137,7 +3137,7 @@ static inline void gup_fast_pgd_range(unsigned long addr, unsigned long end,
 		unsigned int flags, struct page **pages, int *nr)
 {
 }
-#endif /* CONFIG_HAVE_FAST_GUP */
+#endif /* CONFIG_HAVE_GUP_FAST */
 
 #ifndef gup_fast_permitted
 /*
@@ -3157,7 +3157,7 @@ static unsigned long gup_fast(unsigned long start, unsigned long end,
 	int nr_pinned = 0;
 	unsigned seq;
 
-	if (!IS_ENABLED(CONFIG_HAVE_FAST_GUP) ||
+	if (!IS_ENABLED(CONFIG_HAVE_GUP_FAST) ||
 	    !gup_fast_permitted(start, end))
 		return 0;
 
diff --git a/mm/internal.h b/mm/internal.h
index 8e11f7b2da21..c4587c20c881 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1199,7 +1199,7 @@ static inline bool gup_must_unshare(struct vm_area_struct *vma,
 	}
 
 	/* Paired with a memory barrier in folio_try_share_anon_rmap_*(). */
-	if (IS_ENABLED(CONFIG_HAVE_FAST_GUP))
+	if (IS_ENABLED(CONFIG_HAVE_GUP_FAST))
 		smp_rmb();
 
 	/*
-- 
2.43.2