From: Darrick J. Wong <djwong@xxxxxxxxxx> Document the -n parent option to mkfs.xfs so that users will actually know how to turn on directory parent pointers. Signed-off-by: "Darrick J. Wong" <djwong@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- man/man8/mkfs.xfs.8.in | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/man/man8/mkfs.xfs.8.in b/man/man8/mkfs.xfs.8.in index a854b0e87cb1a2..e56c8f31a52c78 100644 --- a/man/man8/mkfs.xfs.8.in +++ b/man/man8/mkfs.xfs.8.in @@ -902,6 +902,18 @@ .SH OPTIONS enabled, and cannot be turned off. .IP In other words, this option is only tunable on the deprecated V4 format. +.TP +.BI parent= value +This feature creates back references from child files to parent directories +so that online repair can reconstruct broken directory files. +The value is either 0 to disable the feature, or 1 to create parent pointers. + +By default, +.B mkfs.xfs +will not create parent pointers. +This feature is only available for filesystems created with the (default) +.B \-m crc=1 +option set. .RE .PP .PD 0
