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SubjectRe: [PATCH 07/11] pktcdvd: use bio_clone_fast() instead of bio_clone()
On Thu, Apr 20, 2017 at 03:38:49PM +1000, NeilBrown wrote:
> pktcdvd doesn't change the bi_io_vec of the clone bio,
> so it is more efficient to use bio_clone_fast(), and not clone
> the bi_io_vec.
> This requires providing a bio_set, and it is safest to
> provide a dedicated bio_set rather than sharing
> fs_bio_set, which filesytems use.
> This new bio_set, pkt_bio_set, can also be use for the bio_split()
> call as the two allocations (bio_clone_fast, and bio_split) are
> independent, neither can block a bio allocated by the other.

Looks fine:

Reviewed-by: Christoph Hellwig <>

But didn't we decide we want to kill off pktcdvd a while ago?

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