Messages in this thread | | | Date | Sat, 15 Jun 2002 13:22:50 -0700 | From | Andrew Morton <> | Subject | Re: bio_chain: proposed solution for bio_alloc failure and large IO simplification |
| |
"Adam J. Richter" wrote: > > >- It's tricky to determine how many bvecs are available in > > a bio. There is no straightforward "how big is it" field > > in struct bio. > > Can't I make a macro to do a table lookup from bio->bi_max?
Not really. If I do
bio_alloc(GFP_KERNEL, 27);
then I'll get a 32-slot bvec. But presumably, I don't want to put more than 27 pages into it.
- - 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/
| |