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nvme-multipath: do not select namespaces which are about to be removed

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nvme_ns_remove() will first set the NVME_NS_REMOVING flag before removing
it from the list at the very last step.
So to avoid selecting a namespace in nvme_find_path() which is about to be
removed check the NVME_NS_REMOVING flag, too, when selecting a new path.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Hannes Reinecke 2019-07-04 08:10:47 +02:00 • committed by Christoph Hellwig
parent 2032d07471
commit 04e70bd4a0
1 changed files with 2 additions and 1 deletions
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3
drivers/nvme/host/multipath.c
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@ -126,7 +126,8 @@ void nvme_mpath_clear_current_path(struct nvme_ns *ns)
static bool nvme_path_is_disabled(struct nvme_ns *ns)
{
return ns->ctrl->state != NVME_CTRL_LIVE ||
test_bit(NVME_NS_ANA_PENDING, &ns->flags);
test_bit(NVME_NS_ANA_PENDING, &ns->flags) ||
test_bit(NVME_NS_REMOVING, &ns->flags);
}
static struct nvme_ns *__nvme_find_path(struct nvme_ns_head *head, int node)