path: root/Documentation
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authorMisono, Tomohiro <>2017-10-06 10:05:08 +0900
committerDavid Sterba <>2017-11-14 15:59:00 +0100
commit4a5b95abb620175ca6eb356ff8a7d698891fa8ab (patch)
tree064a6f191eee6e7f43142aa8f19ba3d16e9511ad /Documentation
parentc56d61883c6f093ac905c49f76a99be5e8e09332 (diff)
btrfs-progs: subvol: change set-default to also accept path
This patch changes "subvol set-default" to also accept the subvolume path for convenience. If there are two args, they are assumed as subvol id and path to the fs (the same as current behavior), and if there is only one arg, it is assumed as the path to the subvolume. subvol id is resolved by test_issubvolume() + lookup_path_rootid(). The empty subvol (ino == 2) will get error on test_issubvolume() which checks whether inode num is 256 or not. Issue: #35 Signed-off-by: Tomohiro Misono <> [ update documentation, use the new multi-line command scheme ] Signed-off-by: David Sterba <>
Diffstat (limited to 'Documentation')
1 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/btrfs-subvolume.asciidoc b/Documentation/btrfs-subvolume.asciidoc
index 5cfe8856..d33fee5a 100644
--- a/Documentation/btrfs-subvolume.asciidoc
+++ b/Documentation/btrfs-subvolume.asciidoc
@@ -142,12 +142,13 @@ you can add \'\+' or \'-' in front of each items, \'+' means ascending,
for --sort you can combine some items together by \',', just like
-*set-default* <id> <path>::
-Set the subvolume of the filesystem <path> which is mounted as
+*set-default* [<subvolume>|<id> <path>]::
+Set the default subvolume of the (mounted) filesystem.
-The subvolume is identified by <id>, which is returned by the *subvolume list*
+There are two ways how to specify the subvolume, by <id> or by the <subvolume>
+The id can be obtained from *btrfs subvolume list*, *btrfs subvolume show* or
+*btrfs inspect-internal rootid*.
*show* <path>::
Show information of a given subvolume in the <path>.