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| Rev 1104 | Rev 1121 | ||
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| Line 99... | Line 99... | ||
| 99 | 99 | ||
| 100 | preemption_disable(); |
100 | preemption_disable(); |
| 101 | __asm__ volatile ( |
101 | __asm__ volatile ( |
| 102 | "0:;" |
102 | "0:;" |
| 103 | #ifdef CONFIG_HT |
103 | #ifdef CONFIG_HT |
| 104 | "pause;" /* Pentium 4's HT love this instruction */ |
104 | "pause;" |
| 105 | #endif |
105 | #endif |
| 106 | "mov %0, %1;" |
106 | "mov %0, %1;" |
| 107 | "testq %1, %1;" |
107 | "testq %1, %1;" |
| 108 | "jnz 0b;" /* Lightweight looping on locked spinlock */ |
108 | "jnz 0b;" /* Lightweight looping on locked spinlock */ |
| 109 | 109 | ||