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authorAndrew Victor <andrew@sanpeople.com>2005-02-09 09:24:26 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:29:43 +0200
commit2f82ce1eb637c06dfc60f095cd1891ae0ba4894c (patch)
tree425727d05f70fdd55d5cf715c7acbeca6aeeeb18 /fs/Kconfig
parent8f15fd55f9bf266139b10850947e19c4e3f4e9b7 (diff)
[JFFS2] Use a single config option for write buffer support
This patch replaces the current CONFIG_JFFS2_FS_NAND, CONFIG_JFFS2_FS_NOR_ECC and CONFIG_JFFS2_FS_DATAFLASH with a single configuration option - CONFIG_JFFS2_FS_WRITEBUFFER. The only functional change of this patch is that the slower div/mod calculations for SECTOR_ADDR(), PAGE_DIV() and PAGE_MOD() are now always used when CONFIG_JFFS2_FS_WRITEBUFFER is enabled. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/Kconfig')
-rw-r--r--fs/Kconfig33
1 files changed, 9 insertions, 24 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index 07835d24c785..475769c25d64 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1063,33 +1063,18 @@ config JFFS2_FS_DEBUG
If reporting bugs, please try to have available a full dump of the
messages at debug level 1 while the misbehaviour was occurring.
-config JFFS2_FS_NAND
- bool "JFFS2 support for NAND flash"
+config JFFS2_FS_WRITEBUFFER
+ bool "JFFS2 write-buffering support"
depends on JFFS2_FS
- default n
+ default y
help
- This enables the support for NAND flash in JFFS2. NAND is a newer
- type of flash chip design than the traditional NOR flash, with
- higher density but a handful of characteristics which make it more
- interesting for the file system to use.
+ This enables the write-buffering support in JFFS2.
- Say 'N' unless you have NAND flash.
-
-config JFFS2_FS_NOR_ECC
- bool "JFFS2 support for ECC'd NOR flash (EXPERIMENTAL)"
- depends on JFFS2_FS && EXPERIMENTAL
- default n
- help
- This enables the experimental support for NOR flash with transparent
- ECC for JFFS2. This type of flash chip is not common, however it is
- available from ST Microelectronics.
-
-config JFFS2_FS_DATAFLASH
- bool "JFFS2 support for DataFlash (EXPERIMENTAL)"
- depends on JFFS2_FS && EXPERIMENTAL
- default n
- help
- This enables the experimental support for JFFS2 on DataFlash devices.
+ This functionality is required to support JFFS2 on the following
+ types of flash devices:
+ - NAND flash
+ - NOR flash with transparent ECC
+ - DataFlash
config JFFS2_COMPRESSION_OPTIONS
bool "Advanced compression options for JFFS2"