Question about free_pgd_slow ?

rocky bill_carson at 126.com
Thu Feb 24 22:35:52 EST 2011


Hi,all

free_pgd_slow in arch/arm/mm/pgd.c  free the 4 pages at pgd level,
while could I ask a question about why free the page by pointed by pgd index 0 ?

cannot figure it out, any tips ?

thanks


rocky




       



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