| 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! |
