diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-03-15 13:27:07 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-03-16 16:48:00 +0100 |
| commit | ce8d78616a6b637d1b763eb18e32045687a84305 (patch) | |
| tree | 711d94c4a2c068922066060b22557b47b24c6336 /drivers/nvme | |
| parent | e559398f47e090394bbbd9006349c858e1ba80da (diff) | |
nvme: warn about shared namespaces without CONFIG_NVME_MULTIPATH
Start warning about exposing a namespace as multiple block devices,
and set a fixed deprecation release.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index c868015c1c96..3c0461129bca 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3855,6 +3855,14 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid, nsid); goto out_put_ns_head; } + + if (!multipath && !list_empty(&head->list)) { + dev_warn(ctrl->device, + "Found shared namespace %d, but multipathing not supported.\n", + nsid); + dev_warn_once(ctrl->device, + "Support for shared namespaces without CONFIG_NVME_MULTIPATH is deprecated and will be removed in Linux 6.0\n."); + } } list_add_tail_rcu(&ns->siblings, &head->list); |