Messages in this thread | | | Date | Sat, 12 Aug 2006 17:23:41 -0700 | From | Andrew Morton <> | Subject | Re: get_swap_bio() question |
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On Fri, 11 Aug 2006 23:32:17 +0200 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> Hi, > > I'm looking at get_swap_bio() in mm/page_io.c and wonder why the result of > map_swap_page() in there is multiplied by (PAGE_SIZE >> 9). Is it the block > size of 512 B hardcoded? And if so, is that actually right (I mean, aren't there > any block devices with different block sizes)? >
Yep, the Linux block layer is based on a 512-bytes sector all over the place. Everywhere you see a sector_t, that's in units of 512-byte-sectors. - 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/
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