tweak
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trap.c
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trap.c
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@ -43,6 +43,7 @@ trap(struct trapframe *tf)
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return;
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return;
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}
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}
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// PAGEBREAK: 10
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// Increment nlock to make sure interrupts stay off
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// Increment nlock to make sure interrupts stay off
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// during interrupt handler. Decrement before returning.
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// during interrupt handler. Decrement before returning.
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cpus[cpu()].nlock++;
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cpus[cpu()].nlock++;
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