[dm-devel] [PATCH 1/3] block: allow BIOSET_PERCPU_CACHE use from bio_alloc_clone
Christoph Hellwig
hch at lst.de
Tue Mar 22 19:54:14 UTC 2022
On Tue, Mar 22, 2022 at 03:49:25PM -0400, Mike Snitzer wrote:
> - bio = bio_alloc_bioset(bdev, 0, bio_src->bi_opf, gfp, bs);
> + if (bs->cache && bio_src->bi_opf & REQ_POLLED)
> + bio = bio_alloc_percpu_cache(bdev, 0, bio_src->bi_opf, gfp, bs);
> + else
I don't think we can just unconditionally do this based on REQ_POLLED.
We'd either need a flag for bio_alloc_bioset or (probably better)
a separate interface.
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