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nvmet: delete controllers deletion upon subsystem release

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No reason for them to be kept around if we are
deleting the subsystem, so instead of passively
wait for the host to disconnect, actively delete
the controllers.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2016-11-27 22:29:17 +02:00
parent c81e55e057
commit 344770b07b
3 changed files with 12 additions and 0 deletions
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1
drivers/nvme/target/configfs.c
View File

@ -631,6 +631,7 @@ static void nvmet_subsys_release(struct config_item *item)
{
struct nvmet_subsys *subsys = to_subsys(item);
nvmet_subsys_del_ctrls(subsys);
nvmet_subsys_put(subsys);
}

10
drivers/nvme/target/core.c
View File

@ -935,6 +935,16 @@ static void nvmet_subsys_free(struct kref *ref)
kfree(subsys);
}
void nvmet_subsys_del_ctrls(struct nvmet_subsys *subsys)
{
struct nvmet_ctrl *ctrl;
mutex_lock(&subsys->lock);
list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)
ctrl->ops->delete_ctrl(ctrl);
mutex_unlock(&subsys->lock);
}
void nvmet_subsys_put(struct nvmet_subsys *subsys)
{
kref_put(&subsys->ref, nvmet_subsys_free);

1
drivers/nvme/target/nvmet.h
View File

@ -282,6 +282,7 @@ void nvmet_ctrl_put(struct nvmet_ctrl *ctrl);
struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn,
enum nvme_subsys_type type);
void nvmet_subsys_put(struct nvmet_subsys *subsys);
void nvmet_subsys_del_ctrls(struct nvmet_subsys *subsys);
struct nvmet_ns *nvmet_find_namespace(struct nvmet_ctrl *ctrl, __le32 nsid);
void nvmet_put_namespace(struct nvmet_ns *ns);