Messages in this thread | | | Date | Thu, 08 Mar 2001 10:11:50 +0000 | From | Anton Altaparmakov <> | Subject | Questions - Re: [PATCH] documentation for mm.h |
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At 22:33 07/03/2001, Rik van Riel wrote: [snip] > typedef struct page { >+ struct list_head list; /* ->mapping has some page lists. */ >+ struct address_space *mapping; /* The inode (or ...) we belong to. */ >+ unsigned long index; /* Our offset within mapping. */
Assuming index is in bytes (it looks like it is): Shouldn't index of type unsigned long long or __u64? Otherwise, AFAICS using the page cache automatically results in an artificial 4Gib limit on file size, which is not very good, even by todays standards.
[snip] >+ * During disk I/O, PG_locked is used. This bit is set before I/O >+ * and reset when I/O completes. page->wait is a wait queue of all >+ * tasks waiting for the I/O on this page to complete.
Is this physical I/O only or does it include a driver writing/reading the page?
Thanks,
Anton
-- Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @) Linux NTFS Maintainer / WWW: http://sourceforge.net/projects/linux-ntfs/ ICQ: 8561279 / WWW: http://www-stu.christs.cam.ac.uk/~aia21/
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