Re: [RFC PATCH 2/7] block: don't merge different kinds of P2P transfers in a single bio

From: Bart Van Assche
Date: Thu Oct 31 2024 - 16:59:20 EST


On 10/27/24 7:21 AM, Leon Romanovsky wrote:
+ /*
+ * When doing ZONE_DEVICE-based P2P transfers, all pages in a
+ * bio must be P2P pages from the same device.
+ */
+ if ((bio->bi_opf & REQ_P2PDMA) &&
+ !zone_device_pages_have_same_pgmap(bv->bv_page, page))
+ return 0;

It's probably too late to change the "zone_device_" prefix into
something that cannot be confused with a reference to zoned block
devices?

Thanks,

Bart.