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    uint32_t tmp;
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    uint32_t tmp;
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    preemption_disable();
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    preemption_disable();
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    asm volatile (
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    asm volatile (
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        "0:\n"
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        "0:\n"
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#ifdef CONFIG_HT
-
 
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        "pause\n"        /* Pentium 4's HT love this instruction */
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        "pause\n"        /* Pentium 4's HT love this instruction */
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#endif
-
 
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        "mov %[count], %[tmp]\n"
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        "mov %[count], %[tmp]\n"
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        "testl %[tmp], %[tmp]\n"
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        "testl %[tmp], %[tmp]\n"
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        "jnz 0b\n"       /* lightweight looping on locked spinlock */
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        "jnz 0b\n"       /* lightweight looping on locked spinlock */
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        "incl %[tmp]\n"  /* now use the atomic operation */
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        "incl %[tmp]\n"  /* now use the atomic operation */