blob_bdev.h File Reference

Helper library to use spdk_bdev as the backing device for a blobstore. More...

Functions
struct spdk_bs_dev *	spdk_bdev_create_bs_dev (struct spdk_bdev *bdev, spdk_bdev_remove_cb_t remove_cb, void *remove_ctx)
	Create a blobstore block device from a bdev. More...
struct spdk_bs_dev *	spdk_bdev_create_bs_dev_from_desc (struct spdk_bdev_desc *desc)
	Create a blobstore block device from the descriptor of a bdev. More...
int	spdk_bs_bdev_claim (struct spdk_bs_dev *bs_dev, struct spdk_bdev_module *module)
	Claim the bdev module for the given blobstore. More...

Detailed Description

Helper library to use spdk_bdev as the backing device for a blobstore.

Function Documentation

spdk_bdev_create_bs_dev()

struct spdk_bs_dev* spdk_bdev_create_bs_dev	(	struct spdk_bdev *	bdev,
		spdk_bdev_remove_cb_t	remove_cb,
		void *	remove_ctx
	)

Create a blobstore block device from a bdev.

(deprecated, please use spdk_bdev_create_bs_dev_from_desc, together with spdk_bdev_open_ext).

Parameters

bdev	Bdev to use.
remove_cb	Called when the block device is removed.
remove_ctx	Argument passed to function remove_cb.

Returns

a pointer to the blobstore block device on success or NULL otherwise.

spdk_bdev_create_bs_dev_from_desc()

struct spdk_bs_dev* spdk_bdev_create_bs_dev_from_desc

(

struct spdk_bdev_desc *

desc

)

Create a blobstore block device from the descriptor of a bdev.

Parameters

desc	Descriptor of a bdev. spdk_bdev_open_ext() is recommended to get the desc.

Returns

a pointer to the blobstore block device on success or NULL otherwise.

spdk_bs_bdev_claim()

int spdk_bs_bdev_claim	(	struct spdk_bs_dev *	bs_dev,
		struct spdk_bdev_module *	module
	)

Claim the bdev module for the given blobstore.

Parameters

bs_dev	Blobstore block device.
module	Bdev module to claim.

Returns

0 on success, negative errno on failure.