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nvme-multipath: drop head pointer check in nvme_mpath_clear_current_path()

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A NS will always have a head pointer, so drop the check. As proof in
practice, all the nvme_mpath_clear_current_path() callers also
dereference ns->head.

This check has endured since the original changes to support multipath.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
John Garry 2026-04-08 08:03:57 +00:00 committed by Keith Busch
parent 7f991e3f9b
commit 7d435caacd
1 changed files with 0 additions and 4 deletions
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4
drivers/nvme/host/multipath.c
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@ -231,16 +231,12 @@ bool nvme_mpath_clear_current_path(struct nvme_ns *ns)
bool changed = false;
int node;
if (!head)
goto out;
for_each_node(node) {
if (ns == rcu_access_pointer(head->current_path[node])) {
rcu_assign_pointer(head->current_path[node], NULL);
changed = true;
}
}
out:
return changed;
}