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The following series implement a way to generate the help messages and the btrfs man page from the sources comments for the "btrfs" commanda . The syntax and the detailed help of every subcommand are stored in the comments before the function which implements the subcommand. The fact that the help messages and the man page are generated from the same source should help to avoid

...enlarge/reduce a filesystem, you must make sure you +can expand/reduce the size of the partition also. +.TP + +\fBshow|\-l\fR [<dev>|<label>...]\fR +Show the btrfs devices with some additional info. If no devices or labels are +passed, \fBbtrfs\fR scans all the block devices. +.TP + +\fBbalance|\-b\fR \fI<path>\fR +Balance the chunk of the filesystem identified by \fI<path>\fR +across the devices. +.TP + +\fBadd\-dev|\-A \fR\fI <dev> [<dev>..] <path>\fR +Add device(s) to the filesystem identified by \fI<path>\fR. +.TP + +\fBrm\-dev|\-R \fR\fI <dev&g...

This is the next patch series for scrub userland tools. Change log v1->v2: - commands now reachable as "btrfs scrub ..." instead of "btrfs filesystem scrub ..." - ability to scrub a single device instead of a whole file system - superfluous command line options removed - resume is now a separate command ("scrub resume") instead of "scrub start -r" -