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blob: add support for base bdev claim

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Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ia6b6e5352ce4da04784fb0a3ea1efd0552650067
Reviewed-on: https://review.gerrithub.io/381548
Reviewed-by: Piotr Pelpliński <piotr.pelplinski@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Maciej Szwed 2017-10-05 17:17:38 +02:00 committed by Daniel Verkamp
parent 96bd19093b
commit c4fe479812
2 changed files with 27 additions and 0 deletions
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3
include/spdk/blob_bdev.h
View File

@ -47,10 +47,13 @@ extern "C" {
struct spdk_bs_dev; struct spdk_bs_dev;
struct spdk_bdev; struct spdk_bdev;
struct spdk_bdev_module_if;
struct spdk_bs_dev *spdk_bdev_create_bs_dev(struct spdk_bdev *bdev, spdk_bdev_remove_cb_t remove_cb, struct spdk_bs_dev *spdk_bdev_create_bs_dev(struct spdk_bdev *bdev, spdk_bdev_remove_cb_t remove_cb,
void *remove_ctx); void *remove_ctx);
int spdk_bs_bdev_claim(struct spdk_bs_dev *bs_dev, struct spdk_bdev_module_if *module);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

24
lib/blob/bdev/blob_bdev.c
View File

@ -38,11 +38,13 @@
#include "spdk/io_channel.h" #include "spdk/io_channel.h"
#include "spdk/log.h" #include "spdk/log.h"
#include "spdk/endian.h" #include "spdk/endian.h"
#include "spdk_internal/bdev.h"
struct blob_bdev { struct blob_bdev {
struct spdk_bs_dev bs_dev; struct spdk_bs_dev bs_dev;
struct spdk_bdev *bdev; struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc; struct spdk_bdev_desc *desc;
bool claimed;
}; };
static inline struct spdk_bdev_desc * static inline struct spdk_bdev_desc *
@ -134,6 +136,23 @@ bdev_blob_unmap(struct spdk_bs_dev *dev, struct spdk_io_channel *channel, uint64
} }
} }
int
spdk_bs_bdev_claim(struct spdk_bs_dev *bs_dev, struct spdk_bdev_module_if *module)
{
struct blob_bdev *blob_bdev = (struct blob_bdev *)bs_dev;
int rc;
rc = spdk_bdev_module_claim_bdev(blob_bdev->bdev, NULL, module);
if (rc != 0) {
SPDK_ERRLOG("could not claim bs dev\n");
return rc;
}
blob_bdev->claimed = true;
return rc;
}
static struct spdk_io_channel * static struct spdk_io_channel *
bdev_blob_create_channel(struct spdk_bs_dev *dev) bdev_blob_create_channel(struct spdk_bs_dev *dev)
{ {
@ -152,6 +171,11 @@ static void
bdev_blob_destroy(struct spdk_bs_dev *bs_dev) bdev_blob_destroy(struct spdk_bs_dev *bs_dev)
{ {
struct spdk_bdev_desc *desc = __get_desc(bs_dev); struct spdk_bdev_desc *desc = __get_desc(bs_dev);
struct blob_bdev *blob_bdev = (struct blob_bdev *)bs_dev;
if (blob_bdev->claimed) {
spdk_bdev_module_release_bdev(blob_bdev->bdev);
}
spdk_bdev_close(desc); spdk_bdev_close(desc);
free(bs_dev); free(bs_dev);