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nvme: export nvme_find_get_ns() and nvme_put_ns()

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nvme_find_get_ns() and nvme_put_ns() are required by the target passthru
code and are exported under the NVME_TARGET_PASSTHRU namespace.

Based-on-a-patch-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Logan Gunthorpe 2020-07-24 11:25:16 -06:00 committed by Christoph Hellwig
parent f783f444ce
commit 24493b8b85
2 changed files with 6 additions and 2 deletions
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6
drivers/nvme/host/core.c
View file

@ -465,10 +465,11 @@ static void nvme_free_ns(struct kref *kref)
kfree(ns);
}
static void nvme_put_ns(struct nvme_ns *ns)
void nvme_put_ns(struct nvme_ns *ns)
{
kref_put(&ns->kref, nvme_free_ns);
}
EXPORT_SYMBOL_NS_GPL(nvme_put_ns, NVME_TARGET_PASSTHRU);
static inline void nvme_clear_nvme_request(struct request *req)
{
@ -3827,7 +3828,7 @@ static int ns_cmp(void *priv, struct list_head *a, struct list_head *b)
return nsa->head->ns_id - nsb->head->ns_id;
}
static struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
{
struct nvme_ns *ns, *ret = NULL;
@ -3845,6 +3846,7 @@ static struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
up_read(&ctrl->namespaces_rwsem);
return ret;
}
EXPORT_SYMBOL_NS_GPL(nvme_find_get_ns, NVME_TARGET_PASSTHRU);
static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
{

2
drivers/nvme/host/nvme.h
View file

@ -794,5 +794,7 @@ u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
u8 opcode);
void nvme_execute_passthru_rq(struct request *rq);
struct nvme_ctrl *nvme_ctrl_get_by_path(const char *path);
struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid);
void nvme_put_ns(struct nvme_ns *ns);
#endif /* _NVME_H */