From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 23 Feb 2013 17:55:39 +0000 (+0000)
Subject: ARM: cleanup gate_vma initialization
X-Git-Tag: v3.12-rc1~914^2^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f6604efe0bee759f4db34757f2872b611288ef0f;p=kernel%2Fkernel-generic.git

ARM: cleanup gate_vma initialization

Three's no need to have code initializing this by hand; it's more
efficient to initialize the constant structure members directly.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index c6dec5f..9397069 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -464,15 +464,16 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
  * atomic helpers and the signal restart code. Insert it into the
  * gate_vma so that it is visible through ptrace and /proc/<pid>/mem.
  */
-static struct vm_area_struct gate_vma;
+static struct vm_area_struct gate_vma = {
+	.vm_start	= 0xffff0000,
+	.vm_end		= 0xffff0000 + PAGE_SIZE,
+	.vm_flags	= VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC,
+	.vm_mm		= &init_mm,
+};
 
 static int __init gate_vma_init(void)
 {
-	gate_vma.vm_start	= 0xffff0000;
-	gate_vma.vm_end		= 0xffff0000 + PAGE_SIZE;
-	gate_vma.vm_page_prot	= PAGE_READONLY_EXEC;
-	gate_vma.vm_flags	= VM_READ | VM_EXEC |
-				  VM_MAYREAD | VM_MAYEXEC;
+	gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
 	return 0;
 }
 arch_initcall(gate_vma_init);