Usage of balancing btrfs is "btrfs filesystem balance", not "btrfs device balance". And remove unneeded usage of "btrfs filesystem defrag". Also fix some typos and over 80 columns.
Signed-off-by: Akira Fujita <a-fuj...@rs.jp.nec.com> --- man/btrfs.8.in | 35 +++++++++++++++++++++-------------- 1 files changed, 21 insertions(+), 14 deletions(-) diff --git a/man/btrfs.8.in b/man/btrfs.8.in index be478e0..2f36f2a 100644 --- a/man/btrfs.8.in +++ b/man/btrfs.8.in @@ -17,20 +17,20 @@ btrfs \- control a btrfs filesystem .PP \fBbtrfs\fP \fBsubvolume get-default\fP\fI <path>\fP .PP +\fBbtrfs\fP \fBfilesystem defragment\fP -c[zlib|lzo] [-l \fIlen\fR] \ +[-s \fIstart\fR] [-t \fIsize\fR] -[vf] <\fIfile\fR>|<\fIdir\fR> \ +[<\fIfile\fR>|<\fIdir\fR>...] +.PP \fBbtrfs\fP \fBfilesystem sync\fP\fI <path> \fP .PP \fBbtrfs\fP \fBfilesystem resize\fP\fI [+/\-]<size>[gkm]|max <filesystem>\fP .PP \fBbtrfs\fP \fBfilesystem label\fP\fI <dev> [newlabel]\fP .PP -\fBbtrfs\fP \fBfilesystem defrag\fP\fI [options] <file>|<dir> [<file>|<dir>...]\fP -.PP \fBbtrfs\fP \fBsubvolume find-new\fP\fI <subvolume> <last_gen>\fP .PP \fBbtrfs\fP \fBfilesystem balance\fP\fI <path> \fP .PP -\fBbtrfs\fP \fBfilesystem defragment\fP\fI <file>|<dir> [<file>|<dir>...]\fP -.PP \fBbtrfs\fP \fBdevice scan\fP\fI [--all-devices|<device> [<device>...]]\fP .PP \fBbtrfs\fP \fBdevice show\fP\fI [--all-devices|<uuid>|<label>]\fP @@ -78,7 +78,7 @@ and as .I filesystem sync. In this case .I btrfs -returnsfilesystem sync +returns filesystem sync If a command is terminated by .I --help , the detailed help is showed. If the passed command matches more commands, @@ -132,12 +132,17 @@ Get the default subvolume of the filesystem \fI<path>\fR. The output format is similar to \fBsubvolume list\fR command. .TP -\fBfilesystem defragment\fP -c[zlib|lzo] [-l \fIlen\fR] [-s \fIstart\fR] [-t \fIsize\fR] -[vf] <\fIfile\fR>|<\fIdir\fR> [<\fIfile\fR>|<\fIdir\fR>...] +\fBfilesystem defragment\fP -c[zlib|lzo] [-l \fIlen\fR] [-s \fIstart\fR] \ +[-t \fIsize\fR] -[vf] <\fIfile\fR>|<\fIdir\fR> [<\fIfile\fR>|<\fIdir\fR>...] Defragment file data and/or directory metadata. To defragment all files in a directory you have to specify each one on its own or use your shell wildcards. -The start position and the number of bytes to deframention can be specified by \fIstart\fR and \fIlen\fR. Any extent bigger than \fIthresh\fR will be considered already defragged. Use 0 to take the kernel default, and use 1 to say eveery single extent must be rewritten. You can also turn on compression in defragment operations. +The start position and the number of bytes to defragment can be specified by +\fIstart\fR and \fIlen\fR. Any extent bigger than threshold will be +considered already defragged. Use 0 to take the kernel default, and use 1 to +say every single extent must be rewritten. You can also turn on compression in +defragment operations. \fB-v\fP be verbose @@ -151,9 +156,11 @@ The start position and the number of bytes to deframention can be specified by \ \fB-t size\fP defragment only files at least \fIsize\fR bytes big -NOTE: defragmenting with kernels up to 2.6.37 will unlink COW-ed copies of data, don't -use it if you use snapshots, have de-duplicated your data or made copies with -\fBcp --reflink\fP. +NOTE: defragmenting with kernels up to 2.6.37 will unlink COW-ed copies of data, +don't use it if you use snapshots, have de-duplicated your data or made +copies with \fBcp --reflink\fP. +.TP + \fBsubvolume find-new\fR\fI <subvolume> <last_gen>\fR List the recently modified files in a subvolume, after \fI<last_gen>\fR ID. .TP @@ -185,13 +192,13 @@ can expand the partition before enlarging the filesystem and shrink the partition after reducing the size of the filesystem. .TP -\fBbtrfs\fP \fBfilesystem label\fP\fI <dev> [newlabel]\fP +\fBfilesystem label\fP\fI <dev> [newlabel]\fP Show or update the label of a filesystem. \fI<dev>\fR is used to identify the filesystem. If a \fInewlabel\fR optional argument is passed, the label is changed. The -following costraints exist for a label: +following constraints exist for a label: .IP -- the maximum allowable lenght shall be less or equal than 256 chars +- the maximum allowable length shall be less or equal than 256 chars .IP - the label shall not contain the '/' or '\\' characters. @@ -209,7 +216,7 @@ If \fB--all-devices\fP is passed, all the devices under /dev are scanned; otherwise the devices list is extracted from the /proc/partitions file. .TP -\fBdevice balance\fR \fI<path>\fR +\fBfilesystem balance\fR \fI<path>\fR Balance the chunks of the filesystem identified by \fI<path>\fR across the devices. .TP -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
