1DEFRAG.F2FS(8)              System Manager's Manual             DEFRAG.F2FS(8)
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NAME

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

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

13       defrag.f2fs is used to move specified number of blocks starting from  a
14       given  block  address  to  the  target  block address with a direction.
15       device  is  the  special  file  corresponding  to  the   device   (e.g.
16       /dev/sdXX).
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18       For example, # defrag.f2fs -s 0x4000 -l 0x100 -t 0x10000 -i /dev/sdb1
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20       This  moves  blocks  between 0x4000 and 0x4100 to the left-hand area of
21       0x10000.
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24       The exit code returned by defrag.f2fs is 0 on success and -1  on  fail‐
25       ure.
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OPTIONS

28       -s start block address
29              Specify the starting block address.
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31       -l number of blocks
32              Specifiy the number of blocks to move.
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34       -t target block address
35              Specify the destination block address.
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37       -i direction
38              Set  the  direction  to  left.  If  it is not set, the direction
39              becomes right by default.
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41       -d debug-level
42              Specify the level of debugging options.  The default  number  is
43              0, which shows basic debugging messages.
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46       AUTHOR
47              This  version  of  defrag.f2fs  has  been written by Jaegeuk Kim
48              <jaegeuk@kernel.org>.
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AVAILABILITY

51       defrag.f2fs is available  from  git://git.kernel.org/pub/scm/linux/ker‐
52       nel/git/jaegeuk/f2fs-tools.git.
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SEE ALSO

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