diff options
| author | LOLi <[email protected]> | 2017-07-12 22:05:37 +0200 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2017-07-12 13:05:37 -0700 |
| commit | cf8738d85374f51298a0872bcd58257bbb4fda6d (patch) | |
| tree | 213e94c15f61f569836e7e0f0fb40727e8cdd4f9 /module/zcommon | |
| parent | e19572e4cc0b8df95ebf60053029e454592a92d4 (diff) | |
Add port of FreeBSD 'volmode' property
The volmode property may be set to control the visibility of ZVOL
block devices.
This allow switching ZVOL between three modes:
full - existing fully functional behaviour (default)
dev - hide partitions on ZVOL block devices
none - not exposing volumes outside ZFS
Additionally the new zvol_volmode module parameter can be used to
control the default behaviour.
This functionality can be used, for instance, on "backup" pools to
avoid cluttering /dev with unneeded zd* devices.
Original-patch-by: mav <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Ported-by: loli10K <[email protected]>
Signed-off-by: loli10K <[email protected]>
FreeBSD-commit: https://github.com/freebsd/freebsd/commit/dd28e6bb
Closes #1796
Closes #3438
Closes #6233
Diffstat (limited to 'module/zcommon')
| -rw-r--r-- | module/zcommon/zfs_prop.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/module/zcommon/zfs_prop.c b/module/zcommon/zfs_prop.c index 97736ee27..93c89e4aa 100644 --- a/module/zcommon/zfs_prop.c +++ b/module/zcommon/zfs_prop.c @@ -245,6 +245,15 @@ zfs_prop_init(void) { NULL } }; + static zprop_index_t volmode_table[] = { + { "default", ZFS_VOLMODE_DEFAULT }, + { "full", ZFS_VOLMODE_GEOM }, + { "geom", ZFS_VOLMODE_GEOM }, + { "dev", ZFS_VOLMODE_DEV }, + { "none", ZFS_VOLMODE_NONE }, + { NULL } + }; + /* inherit index properties */ zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", ZFS_REDUNDANT_METADATA_ALL, @@ -302,6 +311,10 @@ zfs_prop_init(void) zprop_register_index(ZFS_PROP_DNODESIZE, "dnodesize", ZFS_DNSIZE_LEGACY, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "legacy | auto | 1k | 2k | 4k | 8k | 16k", "DNSIZE", dnsize_table); + zprop_register_index(ZFS_PROP_VOLMODE, "volmode", + ZFS_VOLMODE_DEFAULT, PROP_INHERIT, + ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + "default | full | geom | dev | none", "VOLMODE", volmode_table); /* inherit index (boolean) properties */ zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, |