diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/include/arch/smp/spinlock.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/arch/x86/include/arch/smp/spinlock.h b/src/arch/x86/include/arch/smp/spinlock.h index c7008c1b8c..cb25531b15 100644 --- a/src/arch/x86/include/arch/smp/spinlock.h +++ b/src/arch/x86/include/arch/smp/spinlock.h @@ -25,17 +25,17 @@ typedef struct { * We make no fairness assumptions. They have a cost. */ #define barrier() __asm__ __volatile__("" : : : "memory") -#define spin_is_locked(x) (*(volatile char *)(&(x)->lock) <= 0) +#define spin_is_locked(x) (*(volatile int *)(&(x)->lock) <= 0) #define spin_unlock_wait(x) do { barrier(); } while (spin_is_locked(x)) #undef barrier #define spin_lock_string \ "\n1:\t" \ - "lock ; decb %0\n\t" \ + "lock ; decl %0\n\t" \ "js 2f\n" \ ".section .text.lock,\"ax\"\n" \ "2:\t" \ - "cmpb $0,%0\n\t" \ + "cmpl $0,%0\n\t" \ "rep;nop\n\t" \ "jle 2b\n\t" \ "jmp 1b\n" \ @@ -45,7 +45,7 @@ typedef struct { * This works. Despite all the confusion. */ #define spin_unlock_string \ - "movb $1,%0" + "movl $1,%0" static __always_inline void spin_lock(spinlock_t *lock) { |