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.  de‐
15       vice is the special file corresponding to the device (e.g.  /dev/sdXX).
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17       For example, # defrag.f2fs -s 0x4000 -l 0x100 -t 0x10000 -i /dev/sdb1
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19       This moves blocks between 0x4000 and 0x4100 to the  left-hand  area  of
20       0x10000.
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23       The  exit  code returned by defrag.f2fs is 0 on success and -1 on fail‐
24       ure.
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OPTIONS

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

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

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