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authorWang Shilong <wangsl.fnst@cn.fujitsu.com>2014-06-19 09:27:09 +0800
committerDavid Sterba <dsterba@suse.cz>2014-08-22 14:43:10 +0200
commitc24c92f4aef407f6d2cb8fb6422e0f1f77ef8880 (patch)
tree534a3643945d361d7b694229c14c56b624b842f4
parent958bd97a55eed38c295687c2e85f9fb135f89eb3 (diff)
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>
-rw-r--r--Documentation/btrfs-restore.txt26
-rw-r--r--cmds-restore.c7
2 files changed, 22 insertions, 11 deletions
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
diff --git a/cmds-restore.c b/cmds-restore.c
index 310a84e1..3465f842 100644
--- a/cmds-restore.c
+++ b/cmds-restore.c
@@ -1117,9 +1117,9 @@ const char * const cmd_restore_usage[] = {
"-v verbose",
"-i ignore errors",
"-o overwrite",
- "-t <location> tree location",
- "-f <offset> filesystem location",
- "-u <block> super mirror",
+ "-t <bytenr> tree location",
+ "-f <bytenr> filesystem location",
+ "-u <mirror> super mirror",
"-r <rootid> root objectid",
"-d find dir",
"-l list tree roots",
@@ -1128,6 +1128,7 @@ const char * const cmd_restore_usage[] = {
" restore only filenames matching regex,",
" you have to use following syntax (possibly quoted):",
" ^/(|home(|/username(|/Desktop(|/.*))))$",
+ "-c ignore case (--path-regrex only)",
NULL
};