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authorSagi Grimberg <sagi@grimberg.me>2020-04-01 22:44:43 -0700
committerChristoph Hellwig <hch@lst.de>2020-04-02 10:51:46 +0200
commit74e4d20e2f43cf09a35543d960ac8f7a1ffcbbb5 (patch)
tree3d7d23e4ea273befd1ac2a4a0323688be660de0e /drivers
parent39d06079a50fe2a651091b38e311e605de0788cb (diff)
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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 <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvme/host/core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 2db8563aeb2d..91c1bd659947 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