From fa87b91c94a8fd2c8502b6761be2d08a8e9bcf55 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Tue, 3 Oct 2017 16:14:24 -0700 Subject: [PATCH] include/linux/mm.h: fix typo in VM_MPX definition There's a typo in recent change of VM_MPX definition. We want it to be VM_HIGH_ARCH_4, not VM_HIGH_ARCH_BIT_4. This bug does cause visible regressions. In arch_vma_name the vmflags are tested against VM_MPX. With the incorrect value of VM_MPX, a number of vmas (such as the stack) test positive and end up being marked as "[mpx]" in /proc/N/maps instead of their correct names. This confuses tools like rr which expect to be able to find familiar vmas. Fixes: df3735c5b40f ("x86,mpx: make mpx depend on x86-64 to free up VMA flag") Link: http://lkml.kernel.org/r/20170918140253.36856-1-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Reviewed-by: Rik van Riel Cc: Dave Hansen Cc: Kyle Huey Cc: [4.14+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index f8c10d336e42..065d99deb847 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -240,7 +240,7 @@ extern unsigned int kobjsize(const void *objp); #if defined(CONFIG_X86_INTEL_MPX) /* MPX specific bounds table or bounds directory */ -# define VM_MPX VM_HIGH_ARCH_BIT_4 +# define VM_MPX VM_HIGH_ARCH_4 #else # define VM_MPX VM_NONE #endif -- 2.39.5