Messages in this thread |  | | Date | Thu, 8 Mar 2001 11:51:37 +0100 | From | Ingo Oeser <> | Subject | Re: Questions - Re: [PATCH] documentation for mm.h |
| |
On Thu, Mar 08, 2001 at 10:11:50AM +0000, 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):
isn't. To get the byte offset, you have to multiply it by PAGE_{CACHE_,}SIZE.
> [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?
Depends on the method of the driver, that is getting called. -- 10.+11.03.2001 - 3. Chemnitzer LinuxTag <http://www.tu-chemnitz.de/linux/tag> <<<<<<<<<<<< come and join the fun >>>>>>>>>>>> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |