On Thu, 8 Mar 2001, Anton Altaparmakov wrote:
> 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
It's in units of PAGE_CACHE_SIZE. I've corrected the documentation.
> [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?
I'm not sure ... anyone ?
regards,
Rik
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