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15 lines
192 B
C
15 lines
192 B
C
#include <inc/lib.h>
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int
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pageref(void *v)
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{
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pte_t pte;
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if (!(uvpd[PDX(v)] & PTE_P))
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return 0;
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pte = uvpt[PGNUM(v)];
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if (!(pte & PTE_P))
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return 0;
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return pages[PGNUM(pte)].pp_ref;
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}
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