Commit 7be176e1 authored by Jim Harris's avatar Jim Harris
Browse files

reduce: add vol->backing_io_units_per_chunk 



This can be derived from chunk_size and backing_io_unit_size
in the params, but saving this value explicitly in the vol
structure is helpful so we don't always have to calculate
it.

Signed-off-by: default avatarJim Harris <james.r.harris@intel.com>
Change-Id: Ic389afcf60984ea431a6d1c7523005a368547447

Reviewed-on: https://review.gerrithub.io/434112


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent d465a21a

lib/reduce/reduce.c

+4 −1
Original line number Diff line number Diff line
@@ -81,6 +81,7 @@ struct spdk_reduce_vol_request { 


struct spdk_reduce_vol {

	struct spdk_reduce_vol_params		params;

	uint32_t				backing_io_units_per_chunk;

	struct spdk_reduce_pm_file		pm_file;

	struct spdk_reduce_backing_dev		*backing_dev;

	struct spdk_reduce_vol_superblock	*backing_super;
@@ -325,7 +326,7 @@ _allocate_bit_arrays(struct spdk_reduce_vol *vol) 
		return -ENOMEM;

	}



	/* Set backing block bits associated with metadata. */

	/* Set backing io unit bits associated with metadata. */

	spdk_bit_array_set(vol->allocated_backing_io_units, 0);

	spdk_bit_array_set(vol->allocated_backing_io_units, 1);
@@ -446,6 +447,7 @@ spdk_reduce_vol_init(struct spdk_reduce_vol_params *params, 
		return;

	}



	vol->backing_io_units_per_chunk = params->chunk_size / params->backing_io_unit_size;

	memcpy(&vol->params, params, sizeof(*params));



	rc = _allocate_bit_arrays(vol);
@@ -512,6 +514,7 @@ _load_read_super_and_path_cpl(void *cb_arg, int ziperrno) 
	}



	memcpy(&vol->params, &vol->backing_super->params, sizeof(vol->params));

	vol->backing_io_units_per_chunk = vol->params.chunk_size / vol->params.backing_io_unit_size;



	rc = _allocate_bit_arrays(vol);

	if (rc != 0) {