| From | Sasha Levin <> | Subject | [PATCH 4.19 081/131] nvme-multipath: set bdi capabilities once | Date | Mon, 29 Jun 2020 11:34:12 -0400 |
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From: Keith Busch <kbusch@kernel.org>
[ Upstream commit b2ce4d90690bd29ce5b554e203cd03682dd59697 ]
The queues' backing device info capabilities don't change with each namespace revalidation. Set it only when each path's request_queue is initially added to a multipath queue.
Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/nvme/host/multipath.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 588864beabd80..6f584a9515f42 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -11,6 +11,7 @@ * more details. */ +#include <linux/backing-dev.h> #include <linux/moduleparam.h> #include <trace/events/block.h> #include "nvme.h" @@ -521,6 +522,13 @@ void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id) nvme_mpath_set_live(ns); mutex_unlock(&ns->head->lock); } + + 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; + } } void nvme_mpath_remove_disk(struct nvme_ns_head *head) -- 2.25.1
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