Jim Harris 5a04099b01 reduce: save compressed data size in chunk map
Upcoming patches will try to compress the data before
writing it to backing I/O units, and we'll need to save
the exact number of compressed bytes.

For now, since we're not actually compressing data yet,
just save the uncompressed data size to this field.  There
will be cases when we cannot realize any compression
savings and will just store the uncompressed data, so
handling this now is one less path we'll need to add later.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I499a89590349e4816fe0fef77cc1bfabde6871bf

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449078
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2019-03-27 14:20:26 +00:00
..