NAME

       sload.f2fs - load directories and files into the device directly

SYNOPSIS

       sload.f2fs [ -f source-directory-path ] [ -t mount-point ] [ -d debugging-level ] [ -P ] [
       -c [ -L log-of-blocks-per-cluster ] [ -a compression-algorithm ] [  -x  file-extension-to-
       exclude-from-compression  |  -i  file-extension-to-include-for-compression ] [ -m minimum-
       compressed-blocks-per-cluster ] [ -r ] ] device

DESCRIPTION

       sload.f2fs is used to load directories and files into a disk partition, or an  F2FS  image
       (file).   device could a special file corresponding to the device (e.g.  /dev/sdXX), or an
       F2FS image file.

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

OPTIONS

       -f source-directory-path
              Specify the source directory path to be loaded.

       -t mount-point-path
              Specify the mount point path in the partition to load.

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

       -P     Preserve  owner:  user  and  group.  The user and group of the source files will be
              taken into account.

       -c     Enable a cluster-based file compression.  The file would be chopped into  clusters,
              and each cluster is compressed independently.

       -L log-of-blocks-per-cluster
              Specify  cluster  size  in  power of two blocks.  The minimum value is 2 (4 blocks,
              default).  The maximum value is 8 (256 blocks).  Note that a  block  contains  4096
              bytes.  This option must be used with option -c.

       -a compression-algorithm
              Choose  the  algorithm  for compression. Available options are: lzo, lz4 (default).
              This option must be used with option -c.

       -i file-extension-to-include-for-compression
              Specify a file extension to include for the compression.  To specify multiple  file
              extensions,  use  multiple  option -i's.  Files having one of the listed extensions
              will be compressed.  This option must be used with option -c.

       -x file-extension-to-exclude-from-compression
              Specify a file extension to exclude from compression.   To  specify  multiple  file
              extensions,  use  multiple  option -x's.  Files having one of the listed extensions
              won't be compressed.  This option must be used with option -c.

       -m minimum-compressed-blocks-per-cluster
              Specify a minimum block count saved (by  compression)  per  cluster.   The  minimum
              value  is  1  (default).   Maximum value is the cluster size in blocks minus 1.  If
              compression of a cluster fails to save at least the minimum compressed block  count
              given  by the option, the cluster will not be compressed.  This option must be used
              with option -c.

       -r     Specify read-only flag for the compressed files.  It allows filesystem  to  release
              compressed  space  to the users, since, without this option, filesystem should keep
              the space for future file updates.  This option must be used with option -c.

NOTES

       If neither -i nor -x is used, all files will be compressed.  Obviously, option -i  and  -x
       can not be used together.

AUTHOR

       This  version of sload.f2fs has been contributed by Hou Pengyang <houpengyang@huawei.com>,
       Liu  Shuoran  <liushuoran@huawei.com>,  Jaegeuk  Kim   <jaegeuk@kernel.org>,   Robin   Hsu
       <robinhsu@google.com>

AVAILABILITY

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

SEE ALSO

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

                                                                                    SLOAD.F2FS(8)