nvme: inherit stable pages constraint in the mpath stack device (74e4d20e) · Commits · 戴 / test

If the backing device require stable pages, we need to set it on the stack mpath device as well. This applies to rdma/fc transports when doing data integrity and tcp transport calculating digests. Signed-off-by:

Sagi Grimberg <sagi@grimberg.me> Signed-off-by:

Christoph Hellwig <hch@lst.de>

drivers/nvme/host/core.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -1897,6 +1897,13 @@ static void __nvme_revalidate_disk(struct gendisk disk, struct nvme_id_ns id)
		if (ns->head->disk) {
		nvme_update_disk_info(ns->head->disk, ns, id);
		blk_queue_stack_limits(ns->head->disk->queue, ns->queue);
		if (bdi_cap_stable_pages_required(ns->queue->backing_dev_info)) {
		struct backing_dev_info *info =
		ns->head->disk->queue->backing_dev_info;

		info->capabilities \|= BDI_CAP_STABLE_WRITES;
		}

		revalidate_disk(ns->head->disk);
		}
		#endif

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