diff options
| author | Matt Ahrens <[email protected]> | 2011-07-26 12:23:00 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-08-01 12:09:11 -0700 |
| commit | f5fc4acaa77e2c1782a9495bbf1a39884b4c3940 (patch) | |
| tree | 1d562e2608deaf93b5b65042f72e7e0f6b992750 /module/zfs/zfs_dir.c | |
| parent | 6d974228ef05366c546bb04198dafcb38785c16d (diff) | |
Illumos #1092: zfs refratio property
Add a "REFRATIO" property, which is the compression ratio based on
data referenced. For snapshots, this is the same as COMPRESSRATIO,
but for filesystems/volumes, the COMPRESSRATIO is based on the
data "USED" (ie, includes blocks in children, but not blocks
shared with the origin).
This is needed to figure out how much space a filesystem would
use if it were not compressed (ignoring snapshots).
Reviewed by: George Wilson <[email protected]>
Reviewed by: Adam Leventhal <[email protected]>
Reviewed by: Dan McDonald <[email protected]>
Reviewed by: Richard Elling <[email protected]>
Reviewed by: Mark Musante <[email protected]>
Reviewed by: Garrett D'Amore <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References to Illumos issue and patch:
- https://www.illumos.org/issues/1092
- https://github.com/illumos/illumos-gate/commit/187d6ac08a
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #340
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