Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
nvme-multipath: drop head pointer check in nvme_mpath_clear_current_path()
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>
authored by
John Garry
and committed by
Keith Busch
7d435caa
7f991e3f
-4
-4
drivers/nvme/host/multipath.c
-4
drivers/nvme/host/multipath.c
···
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bool changed = false;
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int node;
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-
if (!head)
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-
goto out;
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-
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for_each_node(node) {
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if (ns == rcu_access_pointer(head->current_path[node])) {
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rcu_assign_pointer(head->current_path[node], NULL);
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changed = true;
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}
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}
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-
out:
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return changed;
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}
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