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| author | David Sterba <dsterba@suse.com> | 2017-11-07 19:17:41 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-11-14 15:59:00 +0100 |
| commit | a0abb062181ad97bffc5011fba6920baeee5152e (patch) | |
| tree | 4cf43fb4df5904728876bb0950f37b7e28a321fc /Documentation/btrfs-man5.asciidoc | |
| parent | c9fa9355f39683fe6e294d16745427a6e42ba45a (diff) | |
btrfs-progs: docs: add note about mount option applicability
Copied from https://btrfs.wiki.kernel.org/index.php/Mount_options .
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'Documentation/btrfs-man5.asciidoc')
| -rw-r--r-- | Documentation/btrfs-man5.asciidoc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/btrfs-man5.asciidoc b/Documentation/btrfs-man5.asciidoc index bd005331..dd436cd1 100644 --- a/Documentation/btrfs-man5.asciidoc +++ b/Documentation/btrfs-man5.asciidoc @@ -26,6 +26,13 @@ This section describes mount options specific to BTRFS. For the generic mount options please refer to `mount`(8) manpage. The options are sorted alphabetically (discarding the 'no' prefix). +NOTE: most mount options apply to the whole filesystem and only options in the +first mounted subvolume will take effect. This is due to lack of implementation +and may change in the future. This means that (for example) you can't set +per-subvolume 'nodatacow', 'nodatasum', or 'compress' using mount options. This +should eventually be fixed, but it has proved to be difficult to implement +correctly within the Linux VFS framework. + *acl*:: *noacl*:: (default: on) |