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Diffstat (limited to 'Documentation/filesystems/btrfs.txt')
| -rw-r--r-- | Documentation/filesystems/btrfs.txt | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index c772b47e7ef0..6593d2e415c5 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -168,10 +168,23 @@ Options with (*) are default options and will not show in the mount options. notreelog Enable/disable the tree logging used for fsync and O_SYNC writes. - recovery - Enable autorecovery attempts if a bad tree root is found at mount time. - Currently this scans a list of several previous tree roots and tries to + nologreplay + Disable the log tree replay at mount time to prevent filesystem + from getting modified. + Must be used with 'ro' mount option. + A filesystem mounted with this option cannot transition to a + read-write mount via remount,rw - the filesystem must be unmounted + and mounted back again if read-write access is desired. + + usebackuproot + Enable attempts to use backup tree roots if a bad tree root is found at + mount time. + Currently this scans a list of 4 previous tree roots and tries to use the first readable. + And since the mount option doesn't affect any behavior after mount, + it won't be shown in mount info. + Prior to 4.6, this was done by 'recovery' option that has been + deprecated, but will work. rescan_uuid_tree Force check and rebuild procedure of the UUID tree. This should not |