Re: PATCH 7/8] lguest: the block driver

From: Rusty Russell
Date: Wed Apr 11 2007 - 00:00:45 EST


On Tue, 2007-04-10 at 14:36 +0300, Pekka Enberg wrote:
> On 4/10/07, Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote:
> > > +/* Jens gave me this nice helper to end all chunks of a request. */
> > > +static void end_entire_request(struct request *req, int uptodate)
> > > +{
> > > + if (end_that_request_first(req, uptodate, req->hard_nr_sectors))
> > > + BUG();
> > > + add_disk_randomness(req->rq_disk);
> > > + blkdev_dequeue_request(req);
> > > + end_that_request_last(req, uptodate);
> > > +}
>
> On 4/10/07, Pekka Enberg <penberg@xxxxxxxxxxxxxx> wrote:
> > Perhaps we should move this to generic code (i.e. block/ll_rw_blk.c)?

Yeah, Jens said to put it in here and he'd hoist it later.

> Uhm, I am bit confused now. Why don't you just use end_request() here?

What a question! end_request() doesn't end a request! What a crazy
idea!

As far as I can tell, every name in the block layer is actually some
variant of "fuck off, this is too complicated for you to understand".

Hope that clarifies!
Rusty.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/