btrfs-progs: update docs and completion for inspect-internal dump-tree

Signed-off-by: Alexander Fougner <fougner89@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Documentation/btrfs-debug-tree.asciidoc

@@ -25,8 +25,15 @@ Print detailed extents info.
 Print info of btrfs device and root tree dirs only.
 -r::
 Print info of roots only.
+-R::
+Print info of roots and root backups.
+-u::
+Print info of UUID tree only.
 -b <block_num>::
 Print info of the specified block only.
+-t <tree_id>::
+Print only the tree with the specified ID.
+
 
 EXIT STATUS
 -----------

Documentation/btrfs-inspect-internal.asciidoc

@@ -19,6 +19,31 @@ requires calls to privileged ioctls.
 
 SUBCOMMAND
 ----------
+*dump-tree* [options] <device>::
+(needs root privileges)
++
+Dump the whole tree of the given device.
+This is useful for analyzing filesystem state or inconsistence and has
+a positive educational effect on understanding the internal structure.
+<device> is the device file where the filesystem is stored.
++
+`Options`
++
+-e::::
+Print detailed extents info.
+-d::::
+Print info of btrfs device and root tree dirs only.
+-r::::
+Print info of roots only.
+-R::::
+Print info of roots and root backups.
+-u::::
+Print info of UUID tree only.
+-b <block_num>::::
+Print info of the specified block only.
+-t <tree_id>::::
+Print only the tree with the specified ID.
+
 *inode-resolve* [-v] <ino> <path>::
 (needs root privileges)
 +

btrfs-completion

@@ -20,13 +20,13 @@ _btrfs_mnts()
 	COMPREPLY+=( $( compgen -W "$MNTS" -- "$cur" ) )
 }
 
-_btrfs() 
+_btrfs()
 {
 	local cur prev words cword
     _init_completion || return
 
     COMPREPLY=()
-    
+
 	local cmd=${words[1]}
 
     commands='subvolume filesystem balance device scrub check rescue restore inspect-internal property send receive quota qgroup replace help version'
@@ -36,7 +36,7 @@ _btrfs()
     commands_device='scan add delete remove ready stats usage'
     commands_scrub='start cancel resume status'
     commands_rescue='chunk-recover super-recover'
-    commands_inspect_internal='inode-resolve logical-resolve subvolid-resolve rootid min-dev-size'
+    commands_inspect_internal='inode-resolve logical-resolve subvolid-resolve rootid min-dev-size dump-tree'
     commands_property='get set list'
     commands_quota='enable disable rescan'
     commands_qgroup='assign remove create destroy show limit'
@@ -146,7 +146,7 @@ _btrfs()
     fi
 
     _filedir -d
-    return 0  
+    return 0
 }
 
 complete -F _btrfs btrfs