NAME

       defrag.f2fs - relocate blocks in a given area to the specified region

SYNOPSIS

       defrag.f2fs [ -s start block address ] [ -l number of blocks ] [ -t target block address ] [ -i direction
       ] [ -d debugging-level ] device

DESCRIPTION

       defrag.f2fs is used to move specified number of blocks starting from a given block address to the  target
       block  address  with  a  direction.   device  is  the  special  file  corresponding  to  the device (e.g.
       /dev/sdXX).

       For example, # defrag.f2fs -s 0x4000 -l 0x100 -t 0x10000 -i /dev/sdb1

       This moves blocks between 0x4000 and 0x4100 to the left-hand area of 0x10000.

       The exit code returned by defrag.f2fs is 0 on success and -1 on failure.

OPTIONS

       -s start block address
              Specify the starting block address.

       -l number of blocks
              Specify the number of blocks to move.

       -t target block address
              Specify the destination block address.

       -i direction
              Set the direction to left. If it is not set, the direction becomes right by default.

       -d debug-level
              Specify the level of debugging options.  The default number is  0,  which  shows  basic  debugging
              messages.

       AUTHOR
              This version of defrag.f2fs has been written by Jaegeuk Kim <jaegeuk@kernel.org>.

AVAILABILITY

       defrag.f2fs is available from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git.

SEE ALSO

       mkfs.f2fs(8), dump.f2fs(8), fsck.f2fs(8), resize.f2fs(8), sload.f2fs(8).

                                                                                                  DEFRAG.F2FS(8)