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SubjectRe: [PATCH] superbh, fractured blocks, and grouped io
On Wed, Oct 16 2002, Joel Becker wrote:
> On Mon, Oct 14, 2002 at 03:51:00PM +0200, Jens Axboe wrote:
> > @@ -943,7 +1015,6 @@
> > */
> > bh = blk_queue_bounce(q, rw, bh);
>
> I don't know why this only slightly bothered me until I oopsed.
> This only bounces the superbh and certainly doesn't bounce all the
> attendant bhs in the list.

Eh no, it actually doesn't bounce anything! I added a test to bypass
bouncing temporarily in blk_queue_bounce() (see the BH_Super test in
there), but forgot to replace it with the real thing. The superbh
contains no data, so is not a candidate for bouncing.

--
Jens Axboe

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