2017-05-17 09:25:38 +00:00
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config FS_JFFS2
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bool "Enable JFFS2 filesystem support"
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help
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This provides support for reading images from JFFS2 (Journalling
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Flash File System version 2). JFFS2 is a log-structured file system
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for use with flash memory devices. It supports raw NAND devices,
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hard links and compression.
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2021-12-17 23:08:47 +00:00
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config JFFS2_LZO
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bool "Enable LZO compression in JFFS2"
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depends on FS_JFFS2
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help
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Enable LZO compression in the JFFS2 filesystem
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config JFFS2_NAND
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bool "Enable JFFS2 support for NAND flash"
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depends on FS_JFFS2
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help
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Enable support for NAND flash as the backing store for JFFS2.
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2022-10-29 00:26:59 +00:00
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config SYS_JFFS2_SORT_FRAGMENTS
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bool "Enable JFFS2 sorting of filesystem fragments (SLOW!)"
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depends on FS_JFFS2
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help
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If you boot from a partition which is mounted writable, and you
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update your boot environment by replacing single files on that
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partition, you should also define CONFIG_SYS_JFFS2_SORT_FRAGMENTS.
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Scanning the JFFS2 filesystem takes *much* longer with this feature,
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though. Sorting is done while inserting into the fragment list,
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which is more or less a bubble sort. That algorithm is known to be
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O(n^2), thus you should really consider if you can avoid it!
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