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OpenCloudOS-Kernel
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x86: Convert set_atomicity_lock to raw_spinlock 

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2009-07-25 18:33:11 +02:00
parent 942fa3b63e
commit 40d6753e78
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/cpu/mtrr/generic.c
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@ -570,7 +570,7 @@ static unsigned long set_mtrr_state(void)
static unsigned long cr4;
static DEFINE_SPINLOCK(set_atomicity_lock);
static DEFINE_RAW_SPINLOCK(set_atomicity_lock);
/*
* Since we are disabling the cache don't allow any interrupts,
@ -590,7 +590,7 @@ static void prepare_set(void) __acquires(set_atomicity_lock)
* changes to the way the kernel boots
*/
spin_lock(&set_atomicity_lock);
raw_spin_lock(&set_atomicity_lock);
/* Enter the no-fill (CD=1, NW=0) cache mode and flush caches. */
cr0 = read_cr0() | X86_CR0_CD;
@ -627,7 +627,7 @@ static void post_set(void) __releases(set_atomicity_lock)
/* Restore value of CR4 */
if (cpu_has_pge)
write_cr4(cr4);
spin_unlock(&set_atomicity_lock);
raw_spin_unlock(&set_atomicity_lock);
}
static void generic_set_all(void)