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 /include | |
| 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 'include')
| -rw-r--r-- | include/sys/fs/zfs.h | 8 | ||||
| -rw-r--r-- | include/sys/zvol.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h index 0ce35468f..b634635c8 100644 --- a/include/sys/fs/zfs.h +++ b/include/sys/fs/zfs.h @@ -154,6 +154,7 @@ typedef enum { ZFS_PROP_LOGICALUSED, ZFS_PROP_LOGICALREFERENCED, ZFS_PROP_INCONSISTENT, /* not exposed to the user */ + ZFS_PROP_VOLMODE, ZFS_PROP_FILESYSTEM_LIMIT, ZFS_PROP_SNAPSHOT_LIMIT, ZFS_PROP_FILESYSTEM_COUNT, @@ -394,6 +395,13 @@ typedef enum { ZFS_REDUNDANT_METADATA_MOST } zfs_redundant_metadata_type_t; +typedef enum { + ZFS_VOLMODE_DEFAULT = 0, + ZFS_VOLMODE_GEOM = 1, + ZFS_VOLMODE_DEV = 2, + ZFS_VOLMODE_NONE = 3 +} zfs_volmode_t; + /* * On-disk version number. */ diff --git a/include/sys/zvol.h b/include/sys/zvol.h index f149da977..e8b084762 100644 --- a/include/sys/zvol.h +++ b/include/sys/zvol.h @@ -51,6 +51,7 @@ extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); extern int zvol_set_volsize(const char *, uint64_t); extern int zvol_set_volblocksize(const char *, uint64_t); extern int zvol_set_snapdev(const char *, zprop_source_t, uint64_t); +extern int zvol_set_volmode(const char *, zprop_source_t, uint64_t); extern zvol_state_t *zvol_suspend(const char *); extern int zvol_resume(zvol_state_t *); extern void *zvol_tag(zvol_state_t *); |