The nvme_ns->ref was added to nvme_bdev_ns to support both multipath
and OCSSD range. OCSSD range was to split a namespace into multiple
partitions.
However, OCSSD range was not used and removed to simplify multipath.
When namespace is not split, nvme_ns->ref is 2 at the maximum. First is
for populating namespace and second is for nvme_bdev. nvme_ns->populated
is for populating namespace and nvme_ns->bdev is for nvme_bdev.
Hence we can use nvme_ns->populated and nvme_ns->bdev directly instead of
nvme_ns->ref.
A few patches from this remove nvme_ns->ref and use nvme_ns->populated
and nvme_ns->bdev instead.
dThis patch inlines nvme_bdev_ns_detach() into the callers and remove it.
The following patches will adjust the locations to update nvme_ns->populated
and nvme_ns->bdev and then remove nvme_ns->ref.
Removing nvme_ns->ref will be helpful to associate multiple namespaces
into a single nvme_bdev for multipath.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I87581d39769681adc5e1fdf0b33680e31d958e47
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7095
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
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