linux-kernel - [RFC PATCH v2 1/2] Rename CONFIG_ARCH_WANT_HUGE_PMD_SHARE to CONFIG_ARCH_HAS_HUGE_PMD

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Message-Id: <1559937063-8323-2-git-send-email-larry.bassel@oracle.com>
Date:   Fri,  7 Jun 2019 12:51:02 -0700
From:   Larry Bassel <larry.bassel@...cle.com>
To:     mike.kravetz@...cle.com, willy@...radead.org,
        dan.j.williams@...el.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, linux-nvdimm@...ts.01.org
Cc:     Larry Bassel <larry.bassel@...cle.com>
Subject: [RFC PATCH v2 1/2] Rename CONFIG_ARCH_WANT_HUGE_PMD_SHARE to CONFIG_ARCH_HAS_HUGE_PMD_SHARE

Signed-off-by: Larry Bassel <larry.bassel@...cle.com>
---
 arch/arm64/Kconfig          | 2 +-
 arch/arm64/mm/hugetlbpage.c | 2 +-
 arch/x86/Kconfig            | 2 +-
 mm/hugetlb.c                | 6 +++---
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 697ea05..36d6189 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -901,7 +901,7 @@ config HW_PERF_EVENTS
 config SYS_SUPPORTS_HUGETLBFS
 	def_bool y
 
-config ARCH_WANT_HUGE_PMD_SHARE
+config ARCH_HAS_HUGE_PMD_SHARE
 	def_bool y if ARM64_4K_PAGES || (ARM64_16K_PAGES && !ARM64_VA_BITS_36)
 
 config ARCH_HAS_CACHE_LINE_SIZE
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index f475e54..4f3cb3f 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -241,7 +241,7 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
 		 */
 		ptep = pte_alloc_map(mm, pmdp, addr);
 	} else if (sz == PMD_SIZE) {
-		if (IS_ENABLED(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) &&
+		if (IS_ENABLED(CONFIG_ARCH_HAS_HUGE_PMD_SHARE) &&
 		    pud_none(READ_ONCE(*pudp)))
 			ptep = huge_pmd_share(mm, addr, pudp);
 		else
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2bbbd4d..fdbddb9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -301,7 +301,7 @@ config ARCH_HIBERNATION_POSSIBLE
 config ARCH_SUSPEND_POSSIBLE
 	def_bool y
 
-config ARCH_WANT_HUGE_PMD_SHARE
+config ARCH_HAS_HUGE_PMD_SHARE
 	def_bool y
 
 config ARCH_WANT_GENERAL_HUGETLB
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ac843d3..3a54c9d 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4652,7 +4652,7 @@ long hugetlb_unreserve_pages(struct inode *inode, long start, long end,
 	return 0;
 }
 
-#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
+#ifdef CONFIG_ARCH_HAS_HUGE_PMD_SHARE
 static unsigned long page_table_shareable(struct vm_area_struct *svma,
 				struct vm_area_struct *vma,
 				unsigned long addr, pgoff_t idx)
@@ -4807,7 +4807,7 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
 	return 1;
 }
 #define want_pmd_share()	(1)
-#else /* !CONFIG_ARCH_WANT_HUGE_PMD_SHARE */
+#else /* !CONFIG_ARCH_HAS_HUGE_PMD_SHARE */
 pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 {
 	return NULL;
@@ -4823,7 +4823,7 @@ void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma,
 {
 }
 #define want_pmd_share()	(0)
-#endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */
+#endif /* CONFIG_ARCH_HAS_HUGE_PMD_SHARE */
 
 #ifdef CONFIG_ARCH_WANT_GENERAL_HUGETLB
 pte_t *huge_pte_alloc(struct mm_struct *mm,
-- 
1.8.3.1