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- config FS_JFFS2
- bool "Enable JFFS2 filesystem support"
- help
- This provides support for reading images from JFFS2 (Journalling
- Flash File System version 2). JFFS2 is a log-structured file system
- for use with flash memory devices. It supports raw NAND devices,
- hard links and compression.
- config JFFS2_LZO
- bool "Enable LZO compression in JFFS2"
- depends on FS_JFFS2
- help
- Enable LZO compression in the JFFS2 filesystem
- config JFFS2_NAND
- bool "Enable JFFS2 support for NAND flash"
- depends on FS_JFFS2
- help
- Enable support for NAND flash as the backing store for JFFS2.
- config SYS_JFFS2_SORT_FRAGMENTS
- bool "Enable JFFS2 sorting of filesystem fragments (SLOW!)"
- depends on FS_JFFS2
- help
- If you boot from a partition which is mounted writable, and you
- update your boot environment by replacing single files on that
- partition, you should also define CONFIG_SYS_JFFS2_SORT_FRAGMENTS.
- Scanning the JFFS2 filesystem takes *much* longer with this feature,
- though. Sorting is done while inserting into the fragment list,
- which is more or less a bubble sort. That algorithm is known to be
- O(n^2), thus you should really consider if you can avoid it!
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