Messages in this thread | | | Date | Tue, 15 Oct 2002 10:32:44 +0100 | Subject | Re: [linux-lvm] Re: [PATCH] 2.5 version of device mapper submission | From | Joe Thornber <> |
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On Tue, Oct 15, 2002 at 10:21:52AM +0200, Jens Axboe wrote: > On Mon, Oct 14 2002, Joe Thornber wrote: > > 10.patch > > [Device-mapper] > > Add call to blk_queue_bounce() at the beginning of the request function. > > What on earth for? I also see that you are setting BLK_BOUNCE_HIGH as > the bounce limit unconditionally for your queue. Puzzled.
This is just me stupidly copying loop.c, already found out it doesn't work. Please ignore.
> When does dm even have to touch the data in the bio?
Tell me; if I'm splitting a bio using bio_clone, and then map the bio to a driver that calls blk_queue_bounce. How can I avoid the
BUG_ON((*bio_orig)->bi_idx);
triggering ? Or is bio_clone not to be used anymore ?
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