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[PATCH] i386: replace spin_lock_irqsave with spin_lock

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IRQ is already disabled through local_irq_disable().  So
spin_lock_irqsave() can be replaced with spin_lock().

Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Hisashi Hifumi 2007-05-02 19:27:18 +02:00 committed by Andi Kleen
parent e8a72ffa3a
commit 62dbc210e2
1 changed files with 2 additions and 4 deletions
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6
arch/i386/kernel/reboot.c
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@ -198,8 +198,6 @@ static unsigned char jump_to_bios [] =
*/ */
void machine_real_restart(unsigned char *code, int length) void machine_real_restart(unsigned char *code, int length)
{ {
unsigned long flags;
local_irq_disable(); local_irq_disable();
/* Write zero to CMOS register number 0x0f, which the BIOS POST /* Write zero to CMOS register number 0x0f, which the BIOS POST
@ -212,9 +210,9 @@ void machine_real_restart(unsigned char *code, int length)
safe side. (Yes, CMOS_WRITE does outb_p's. - Paul G.) safe side. (Yes, CMOS_WRITE does outb_p's. - Paul G.)
*/ */
spin_lock_irqsave(&rtc_lock, flags); spin_lock(&rtc_lock);
CMOS_WRITE(0x00, 0x8f); CMOS_WRITE(0x00, 0x8f);
spin_unlock_irqrestore(&rtc_lock, flags); spin_unlock(&rtc_lock);
/* Remap the kernel at virtual address zero, as well as offset zero /* Remap the kernel at virtual address zero, as well as offset zero
from the kernel segment. This assumes the kernel segment starts at from the kernel segment. This assumes the kernel segment starts at