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x86: clean up arch/x86/ia32/syscall32.c

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White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2008-01-30 13:30:08 +01:00 committed by Ingo Molnar
parent c202f298de
commit 6ec875666d
1 changed files with 24 additions and 21 deletions
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35
arch/x86/ia32/syscall32.c
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@ -1,8 +1,9 @@
/* Copyright 2002,2003 Andi Kleen, SuSE Labs */
/* vsyscall handling for 32bit processes. Map a stub page into it
on demand because 32bit cannot reach the kernel's fixmaps */
/*
* Copyright 2002,2003 Andi Kleen, SuSE Labs
*
* vsyscall handling for 32bit processes. Map a stub page into it on
* demand because 32bit cannot reach the kernel's fixmaps
*/
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/kernel.h>
@ -52,29 +53,31 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
static int __init init_syscall32(void)
{
char *syscall32_page = (void *)get_zeroed_page(GFP_KERNEL);
if (!syscall32_page)
panic("Cannot allocate syscall32 page");
syscall32_pages[0] = virt_to_page(syscall32_page);
if (use_sysenter > 0) {
memcpy(syscall32_page, syscall32_sysenter,
syscall32_sysenter_end - syscall32_sysenter);
} else {
memcpy(syscall32_page, syscall32_syscall,
syscall32_syscall_end - syscall32_syscall);
}
if (use_sysenter > 0) {
memcpy(syscall32_page, syscall32_sysenter,
syscall32_sysenter_end - syscall32_sysenter);
} else {
memcpy(syscall32_page, syscall32_syscall,
syscall32_syscall_end - syscall32_syscall);
}
return 0;
}
__initcall(init_syscall32);
/* May not be __init: called during resume */
void syscall32_cpu_init(void)
{
if (use_sysenter < 0)
use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
/* Load these always in case some future AMD CPU supports
SYSENTER from compat mode too. */
/*
* Load these always in case some future AMD CPU supports
* SYSENTER from compat mode too.
*/
checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);