[PATCH v2 2/4] Btrfs-progs: add mount-option command man page

[Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>]

Add mount-option command man page.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
---
 man/btrfs.8.in |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/man/btrfs.8.in b/man/btrfs.8.in
index 4b0a9f9..85d5030 100644
--- a/man/btrfs.8.in
+++ b/man/btrfs.8.in
@@ -52,6 +52,12 @@ btrfs \- control a btrfs filesystem
 \fBbtrfs\fP \fBinspect-internal logical-resolve\fP
 [-Pv] \fI<logical>\fP \fI<path>\fP
 .PP
+\fBbtrfs\fP \fBmount-option set\fP \fI[[<+/-/=><option>,...]...]\fP \fI<device>\fP
+.PP
+\fBbtrfs\fP \fBmount-option get\fP \fI<device>\fP
+.PP
+\fBbtrfs\fP \fBmount-option clear\fP \fI<device>\fP
+.PP
 \fBbtrfs\fP \fBhelp|\-\-help|\-h \fP\fI\fP
 .PP
 \fBbtrfs\fP \fB<command> \-\-help \fP\fI\fP
@@ -319,6 +325,25 @@ skip the path resolving and print the inodes instead
 .IP -v 5
 verbose mode. print count of returned paths and all ioctl() return values
 .RE
+.TP
+
+\fBmount-option set\fP \fI[<+/-/=><option>,...]...]\fP \fI<device>\fP
+With some operators \fB+\fP,\fB-\fP,\fB=\fP and some options,
+set default mount options to the \fI<device>\fP.
+These \fB+\fP,\fB-\fP,\fB=\fP operators mean like \fBchmod\fP operators.
+The operator \fB+\fP causes the selected mount options to be added to existing
+default mount options of the \fI<device>\fP; \fB-\fP causes them to be removed;
+and \fB=\fP causes them to be added and causes unmentioned options to be removed.
+Without options, print default mount options of the \fI<device>\fR.
+.TP
+
+\fBmount-option get\fP \fI<device>\fP
+Print default mount options of the \fI<device>\fR.
+.TP
+
+\fBmount-option clear\fP \fI<device>\fP
+Clear default mount options of the \fI<device>\fR.
+.TP
 
 .SH EXIT STATUS
 \fBbtrfs\fR returns a zero exist status if it succeeds. Non zero is returned in
-- 
1.7.7.6