From 185be15143aa308184310df9fde3d409ca9f83bb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 26 Aug 2019 09:55:56 +0200 Subject: [PATCH] x86/mm: Remove set_pages_x() and set_pages_nx() These wrappers don't provide a real benefit over just using set_memory_x() and set_memory_nx(). Signed-off-by: Christoph Hellwig Signed-off-by: Peter Zijlstra (Intel) Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190826075558.8125-4-hch@lst.de Signed-off-by: Ingo Molnar --- arch/x86/include/asm/set_memory.h | 2 -- arch/x86/kernel/machine_kexec_32.c | 4 ++-- arch/x86/mm/init_32.c | 2 +- arch/x86/mm/pageattr.c | 16 ---------------- 4 files changed, 3 insertions(+), 21 deletions(-) diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h index 899ec9ae7cff..fd549c3ebb17 100644 --- a/arch/x86/include/asm/set_memory.h +++ b/arch/x86/include/asm/set_memory.h @@ -75,8 +75,6 @@ int set_pages_array_wb(struct page **pages, int addrinarray); int set_pages_uc(struct page *page, int numpages); int set_pages_wb(struct page *page, int numpages); -int set_pages_x(struct page *page, int numpages); -int set_pages_nx(struct page *page, int numpages); int set_pages_ro(struct page *page, int numpages); int set_pages_rw(struct page *page, int numpages); diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 77854b192fef..7b45e8daad22 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -148,7 +148,7 @@ int machine_kexec_prepare(struct kimage *image) { int error; - set_pages_x(image->control_code_page, 1); + set_memory_x((unsigned long)page_address(image->control_code_page), 1); error = machine_kexec_alloc_page_tables(image); if (error) return error; @@ -162,7 +162,7 @@ int machine_kexec_prepare(struct kimage *image) */ void machine_kexec_cleanup(struct kimage *image) { - set_pages_nx(image->control_code_page, 1); + set_memory_nx((unsigned long)page_address(image->control_code_page), 1); machine_kexec_free_page_tables(image); } diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 4068abb9427f..930edeb41ec3 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -916,7 +916,7 @@ static void mark_nxdata_nx(void) if (__supported_pte_mask & _PAGE_NX) printk(KERN_INFO "NX-protecting the kernel data: %luk\n", size >> 10); - set_pages_nx(virt_to_page(start), size >> PAGE_SHIFT); + set_memory_nx(start, size >> PAGE_SHIFT); } void mark_rodata_ro(void) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 1f97a726d09a..d5586a012745 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -2113,22 +2113,6 @@ int set_pages_array_wb(struct page **pages, int numpages) } EXPORT_SYMBOL(set_pages_array_wb); -int set_pages_x(struct page *page, int numpages) -{ - unsigned long addr = (unsigned long)page_address(page); - - return set_memory_x(addr, numpages); -} -EXPORT_SYMBOL(set_pages_x); - -int set_pages_nx(struct page *page, int numpages) -{ - unsigned long addr = (unsigned long)page_address(page); - - return set_memory_nx(addr, numpages); -} -EXPORT_SYMBOL(set_pages_nx); - int set_pages_ro(struct page *page, int numpages) { unsigned long addr = (unsigned long)page_address(page);