| /trunk/kernel/arch/amd64/include/atomic.h |
|---|
| 115,7 → 115,9 |
| preemption_disable(); |
| asm volatile ( |
| "0:\n" |
| #ifdef CONFIG_HT |
| "pause\n" |
| #endif |
| "mov %[count], %[tmp]\n" |
| "testq %[tmp], %[tmp]\n" |
| "jnz 0b\n" /* lightweight looping on locked spinlock */ |
| /trunk/kernel/arch/ia32/src/atomic.S |
|---|
| 42,7 → 42,9 |
| movl 12(%esp),%ebx |
| 0: |
| #ifdef CONFIG_HT |
| pause # Pentium 4's with HT love this instruction |
| #endif |
| movl (%ebx),%eax |
| testl %eax,%eax |
| jnz 0b # lightweight looping while it is locked |
| /trunk/kernel/arch/ia32/include/atomic.h |
|---|
| 114,7 → 114,9 |
| preemption_disable(); |
| asm volatile ( |
| "0:\n" |
| #ifdef CONFIG_HT |
| "pause\n" /* Pentium 4's HT love this instruction */ |
| #endif |
| "mov %[count], %[tmp]\n" |
| "testl %[tmp], %[tmp]\n" |
| "jnz 0b\n" /* lightweight looping on locked spinlock */ |