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Return page_count(page) - !!page_has_private(page) == 2 discussion
06/18/09
(15:34:44) vincentinsz: 287 static inline int is_page_cache_freeable(struct page *page)
288 {
289 return page_count(page) - !!page_has_private(page) == 2;
290 }
(15:35:21) vincentinsz: this function eventually returns 0 or 1, right?
(15:36:35) qunying: not -
kernel virtual address to size caculation chat log
06/11/09
I had an interesting chat with my friend qunying about how to caculate the hex presentation of address to a size:
(14:29:56) vincentinsz: on x86 32bit the kernel image located at physical address 1MiB, which translate to 0x00100000, but how 0x00100000 equals 1M, how to caculate it?
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Return page_count(page) - !!page_has_private(page) == 2 discussion
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