From: Sagi Grimberg Date: Thu, 2 Apr 2020 05:44:43 +0000 (-0700) Subject: nvme: inherit stable pages constraint in the mpath stack device X-Git-Tag: v5.10.7~2827^2~1^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=74e4d20e2f43cf09a35543d960ac8f7a1ffcbbb5;p=platform%2Fkernel%2Flinux-rpi.git nvme: inherit stable pages constraint in the mpath stack device 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 Signed-off-by: Christoph Hellwig --- diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 2db8563..91c1bd6 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -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