From c24c92f4aef407f6d2cb8fb6422e0f1f77ef8880 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Thu, 19 Jun 2014 09:27:09 +0800
Subject: btrfs-progs: restore: document updates

Add some missing options, also improve some confusing
expressions.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
---
 Documentation/btrfs-restore.txt | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

(limited to 'Documentation')

diff --git a/Documentation/btrfs-restore.txt b/Documentation/btrfs-restore.txt
index d774343b..2fa28018 100644
--- a/Documentation/btrfs-restore.txt
+++ b/Documentation/btrfs-restore.txt
@@ -24,7 +24,7 @@ https://btrfs.wiki.kernel.org/index.php/Restore
 OPTIONS
 -------
 -s::
-get snapshots.
+get snapshots, btrfs restore skips snapshots in default.
 
 -x::
 get extended attributes.
@@ -38,17 +38,17 @@ ignore errors.
 -o::
 overwrite directories/files in <path>.
 
--t <location>::
-use <location> to read root tree.
+-t <bytenr>::
+use <bytenr> to read root tree.
 
--f <offset>::
-use <offset> to read fs tree.
+-f <bytenr>::
+only restore files that are under specified root whose root bytenr is <bytenr>.
 
--u <block>::
-use given superblock mirror identified by <block>.
+-u <mirror>::
+use given superblock mirror identified by <mirror>, it can be 0,1,2.
 
 -r <rootid>::
-use <rootid> as root objectid.
+only restore files that are under specified root whose objectid is <rootid>.
 
 -d::
 find dir.
@@ -56,6 +56,16 @@ find dir.
 -l::
 list tree roots.
 
+-D|--dry-run::
+dry run (only list files that would be recovered).
+
+--path-regex <regex>::
+restore only filenames matching regex, you have to use following syntax (possibly quoted):
+^/(|home(|/username(|/Desktop(|/.*))))$
+
+-c::
+ignore case (--path-regrex only).
+
 EXIT STATUS
 -----------
 *btrfs restore* returns a zero exist status if it succeeds. Non zero is
-- 
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