linux-kernel - [PATCH 4/5] mm: debug_vm_pgtable: use VM_ACCESS

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Message-ID: <20221019034945.93081-5-wangkefeng.wang@huawei.com>
Date:   Wed, 19 Oct 2022 11:49:44 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     Dinh Nguyen <dinguyen@...nel.org>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        <linux-sgx@...r.kernel.org>, <amd-gfx@...ts.freedesktop.org>,
        <linux-mm@...ck.org>, Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH 4/5] mm: debug_vm_pgtable: use VM_ACCESS_FLAGS

Directly use VM_ACCESS_FLAGS instead VMFLAGS.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 mm/debug_vm_pgtable.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index dc7df1254f0a..2b61fde8c38c 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -38,11 +38,7 @@
  * Please refer Documentation/mm/arch_pgtable_helpers.rst for the semantics
  * expectations that are being validated here. All future changes in here
  * or the documentation need to be in sync.
- */
-
-#define VMFLAGS	(VM_READ|VM_WRITE|VM_EXEC)
-
-/*
+ *
  * On s390 platform, the lower 4 bits are used to identify given page table
  * entry type. But these bits might affect the ability to clear entries with
  * pxx_clear() because of how dynamic page table folding works on s390. So
@@ -1125,7 +1121,7 @@ static int __init init_args(struct pgtable_debug_args *args)
 	 */
 	memset(args, 0, sizeof(*args));
 	args->vaddr              = get_random_vaddr();
-	args->page_prot          = vm_get_page_prot(VMFLAGS);
+	args->page_prot          = vm_get_page_prot(VM_ACCESS_FLAGS);
 	args->page_prot_none     = vm_get_page_prot(VM_NONE);
 	args->is_contiguous_page = false;
 	args->pud_pfn            = ULONG_MAX;
-- 
2.35.3