nvme-multipath: relax ANA state check

[ Upstream commit cc2278c413c3a06a93c23ee8722e4dd3d621de12 ]

When undergoing state transitions I/O might be requeued, hence
we should always call nvme_mpath_set_live() to schedule requeue_work
whenever the nvme device is live, independent on whether the
old state was live or not.

Signed-off-by: Martin George <marting@netapp.com>
Signed-off-by: Gargi Srinivas <sring@netapp.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index da8f5ad30c719e05dcc43e813334ead44663663a..260248fbb8feb4cbf7c9149c9b9e43939c7a431f 100644 (file)
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -349,15 +349,12 @@ static inline bool nvme_state_is_live(enum nvme_ana_state state)
 static void nvme_update_ns_ana_state(struct nvme_ana_group_desc *desc,
                struct nvme_ns *ns)
 {
-       enum nvme_ana_state old;
-
        mutex_lock(&ns->head->lock);
-       old = ns->ana_state;
        ns->ana_grpid = le32_to_cpu(desc->grpid);
        ns->ana_state = desc->state;
        clear_bit(NVME_NS_ANA_PENDING, &ns->flags);
 
-       if (nvme_state_is_live(ns->ana_state) && !nvme_state_is_live(old))
+       if (nvme_state_is_live(ns->ana_state))
                nvme_mpath_set_live(ns);
        mutex_unlock(&ns->head->lock);
 }