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This tool tries to move the valid blocks ranging from blkaddr to blkaddr + len to targeted blkaddr with a direction like expand or shrink. The option includes: -d debug level [default:0] -s start block address [default: main_blkaddr] -l length [default:512 (2MB)] -t target block address [default: main_blkaddr + 2MB] -i set direction as shrink [default: expand] For example, # defrag.f2fs -s 0x100 -l 0x10 -t 0x4000 /dev/sdb1 This will move data blocks between 0x100 and 0x110 to the right side of 0x4000 space. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
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| fsck | ||
| include | ||
| lib | ||
| m4 | ||
| man | ||
| mkfs | ||
| scripts | ||
| tools | ||
| .gitignore | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| Makefile.am | ||
| README | ||
| VERSION | ||
F2FS format utilility --------------------- To use f2fs filesystem, you should format the storage partition with this utilility. Otherwise, you cannot mount f2fs. Before compilation ------------------ Your should install the following packages. - libuuid-devel or uuid-dev - pkg-config - autoconf - libtool Initial compilation ------------------- Before compilation initially, autoconf/automake tools should be run. # autoreconf --install How to compile -------------- # ./configure # make How to cross-compile (e.g., for ARM) ------------------------------------ 1. Add the below line into mkfs/Makefile.am: mkfs_f2fs_LDFLAGS = -all-static 2. Add the below line into fsck/Makefile.am: fsck_f2fs_LDFLAGS = -all-static 3. then, do: # LDFLAGS=--static ./configure \ --host=arm-none-linux-gnueabi --target=arm-none-linux-gnueabi # make How to run by default --------------------- $ ./mkfs.f2fs -l [LABEL] $DEV For more mkfs options, see man page.