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btrfs-progs: docs: update defrag regarding recursion 

State that defrag by default does not descend to subvolumes, this has
been hidden in implementation details.

Issue: #185
Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2019-07-02 15:24:32 +02:00
parent 88f4bcb351
commit 534c296121
1 changed files with 4 additions and 2 deletions
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6
Documentation/btrfs-filesystem.asciidoc
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@ -83,7 +83,8 @@ If conflicting options are passed, the last one takes precedence.
*defragment* [options] <file>|<dir> [<file>|<dir>...]::
Defragment file data on a mounted filesystem. Requires kernel 2.6.33 and newer.
+
If '-r' is passed, files in dir will be defragmented recursively.
If '-r' is passed, files in dir will be defragmented recursively (not
descending to subvolumes and mount points).
The start position and the number of bytes to defragment can be specified by
start and length using '-s' and '-l' options below.
Extents bigger than value given by '-t' will be skipped, otherwise this value
@ -116,7 +117,8 @@ compress file contents while defragmenting. Optional argument selects the compre
algorithm, 'zlib' (default), 'lzo' or 'zstd'. Currently it's not possible to select no
compression. See also section 'EXAMPLES'.
-r::::
defragment files recursively in given directories
defragment files recursively in given directories, does not descend to
subvolumes or mount points
-f::::
flush data for each file before going to the next file.
+