[PATCH v6 10/26] arm64: Avoid unnecessary clear_user_page() indirection
flat view
STALE2280d
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2020-07-03 15:37:50
Also in:
linux-arch, linux-mm
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Revision v6 of 9 in this series.
Revisions (9)
Since clear_user_page() calls clear_page() directly, avoid the
unnecessary indirection.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
---
Notes:
New in v5.
arch/arm64/include/asm/page.h | 3 +--
arch/arm64/mm/copypage.c | 6 ------
2 files changed, 1 insertion(+), 8 deletions(-)
diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
index 11734ce29702..d918cb1d83a6 100644
--- a/arch/arm64/include/asm/page.h
+++ b/arch/arm64/include/asm/page.h@@ -18,7 +18,6 @@ struct page; struct vm_area_struct; -extern void __cpu_clear_user_page(void *p, unsigned long user); extern void copy_page(void *to, const void *from); extern void clear_page(void *to);
@@ -33,7 +32,7 @@ void copy_highpage(struct page *to, struct page *from); alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE -#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) +#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) typedef struct page *pgtable_t;
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c
index 4a2233fa674e..70a71f38b6a9 100644
--- a/arch/arm64/mm/copypage.c
+++ b/arch/arm64/mm/copypage.c@@ -35,9 +35,3 @@ void copy_user_highpage(struct page *to, struct page *from, flush_dcache_page(to); } EXPORT_SYMBOL_GPL(copy_user_highpage); - -void __cpu_clear_user_page(void *kaddr, unsigned long vaddr) -{ - clear_page(kaddr); -} -EXPORT_SYMBOL_GPL(__cpu_clear_user_page);
_______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel