To accept DUP on multidev fs, in addition to the following
commit, we need to mark DUP as an allowed data/metadata
profile.
commit
42f1279bf8e9 ("btrfs-progs: mkfs: allow DUP on multidev fs, only warn")
* actual result
=============================================
# ./mkfs.btrfs -f -m DUP -d DUP /dev/sdb1 /dev/sdb2
btrfs-progs v4.5-24-ga35b7e6
See http://btrfs.wiki.kernel.org for more information.
WARNING: DUP is not recommended on filesystem with multiple devices
ERROR: unable to create FS with metadata profile DUP (have 2 devices but 1 devices are required)
=============================================
* expected result
=============================================
# ./mkfs.btrfs -f -m dup -d dup /dev/sdb1 /dev/sdb2
WARNING: DUP is not recommended on filesystem with multiple devices
btrfs-progs v4.5-25-g1a10a3c
See http://btrfs.wiki.kernel.org for more information.
Label: (null)
UUID:
010d72ff-c87c-4516-8916-
5e635719d110
Node size: 16384
Sector size: 4096
Filesystem size: 28.87GiB
Block group profiles:
Data: DUP 1.01GiB
Metadata: DUP 1.01GiB
System: DUP 12.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 2
Devices:
ID SIZE PATH
1 953.00MiB /dev/sdb1
2 27.94GiB /dev/sdb2
==================================================
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>