Commit 1b23560f authored by Tomasz Zawadzki's avatar Tomasz Zawadzki
Browse files

lib/blob: add _spdk_bs_cluster_to_extent_page() for easy conversion 



Signed-off-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I3e49c398d9bdf9f4eacba65061cc7fe4b300fb56
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479963


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent 59f7f3f7

lib/blob/blobstore.h

+18 −0
Original line number Diff line number Diff line
@@ -518,6 +518,24 @@ _spdk_bs_back_dev_lba_to_io_unit(struct spdk_blob *blob, uint64_t lba) 
	return lba * (blob->back_bs_dev->blocklen / blob->bs->io_unit_size);

}



static inline uint64_t

_spdk_bs_cluster_to_extent_table_id(uint64_t cluster_num)

{

	return cluster_num / SPDK_EXTENTS_PER_EP;

}



static inline uint32_t *

_spdk_bs_cluster_to_extent_page(struct spdk_blob *blob, uint64_t cluster_num)

{

	uint64_t extent_table_id = _spdk_bs_cluster_to_extent_table_id(cluster_num);



	if (extent_table_id >= blob->active.extent_pages_array_size) {

		return NULL;

	}



	return &blob->active.extent_pages[extent_table_id];

}



/* End basic conversions */



static inline uint64_t