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 /include/sys/fs | |
| 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
Diffstat (limited to 'include/sys/fs')
| -rw-r--r-- | include/sys/fs/zfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h index a2b68eddf..2ac84f645 100644 --- a/include/sys/fs/zfs.h +++ b/include/sys/fs/zfs.h @@ -21,6 +21,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011 by Delphix. All rights reserved. */ /* Portions Copyright 2010 Robert Milkowski */ @@ -122,6 +123,7 @@ typedef enum { ZFS_PROP_DEDUP, ZFS_PROP_MLSLABEL, ZFS_PROP_SYNC, + ZFS_PROP_REFRATIO, ZFS_NUM_PROPS } zfs_prop_t; |