X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=Kconfig;h=658feea5ff55ef43a692b33c38f3aefa73b21524;hp=6d3790e1f8dd7e732021bf64178aa22961a10cfa;hb=6648cbf52d6695755941ff8607fd7a0cda542e05;hpb=c95ba3c0ffa9598463e4b2b5a8a3e83339a6125f diff --git a/Kconfig b/Kconfig index 6d3790e..658feea 100644 --- a/Kconfig +++ b/Kconfig @@ -1,23 +1,23 @@ # -# YAFFS file system configurations +# yaffs file system configurations # config YAFFS_FS - tristate "YAFFS2 file system support" + tristate "yaffs2 file system support" default n depends on MTD_BLOCK select YAFFS_YAFFS1 select YAFFS_YAFFS2 help - YAFFS2, or Yet Another Flash Filing System, is a filing system + yaffs2, or Yet Another Flash File System, is a file system optimised for NAND Flash chips. - To compile the YAFFS2 file system support as a module, choose M + To compile the yaffs2 file system support as a module, choose M here: the module will be called yaffs2. If unsure, say N. - Further information on YAFFS2 is available at + Further information on yaffs2 is available at . config YAFFS_YAFFS1 @@ -25,7 +25,7 @@ config YAFFS_YAFFS1 depends on YAFFS_FS default y help - Enable YAFFS1 support -- yaffs for 512 byte / page devices + Enable yaffs1 support -- yaffs for 512 byte / page devices Not needed for 2K-page devices. @@ -49,11 +49,11 @@ config YAFFS_9BYTE_TAGS If unsure, say N. config YAFFS_DOES_ECC - bool "Lets Yaffs do its own ECC" + bool "Lets yaffs do its own ECC" depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS default n help - This enables Yaffs to use its own ECC functions instead of using + This enables yaffs to use its own ECC functions instead of using the ones from the generic MTD-NAND driver. If unsure, say N. @@ -74,7 +74,7 @@ config YAFFS_YAFFS2 depends on YAFFS_FS default y help - Enable YAFFS2 support -- yaffs for >= 2K bytes per page devices + Enable yaffs2 support -- yaffs for >= 2K bytes per page devices If unsure, say Y. @@ -91,59 +91,23 @@ config YAFFS_AUTO_YAFFS2 If unsure, say Y. config YAFFS_DISABLE_TAGS_ECC - bool "Disable YAFFS from doing ECC on tags by default" + bool "Disable yaffs from doing ECC on tags by default" depends on YAFFS_FS && YAFFS_YAFFS2 default n help - This defaults Yaffs to using its own ECC calculations on tags instead of + This defaults yaffs to using its own ECC calculations on tags instead of just relying on the MTD. This behavior can also be overridden with tags_ecc_on and tags_ecc_off mount options. If unsure, say N. -config YAFFS_DISABLE_LAZY_LOAD - bool "Disable lazy loading" - depends on YAFFS_YAFFS2 - default n - help - "Lazy loading" defers loading file details until they are - required. This saves mount time, but makes the first look-up - a bit longer. - - Lazy loading will only happen if enabled by this option being 'n' - and if the appropriate tags are available, else yaffs2 will - automatically fall back to immediate loading and do the right - thing. - - Lazy laoding will be required by checkpointing. - - Setting this to 'y' will disable lazy loading. - - If unsure, say N. - - -config YAFFS_DISABLE_WIDE_TNODES - bool "Turn off wide tnodes" - depends on YAFFS_FS - default n - help - Wide tnodes are only used for NAND arrays >=32MB for 512-byte - page devices and >=128MB for 2k page devices. They use slightly - more RAM but are faster since they eliminate chunk group - searching. - - Setting this to 'y' will force tnode width to 16 bits and save - memory but make large arrays slower. - - If unsure, say N. - config YAFFS_ALWAYS_CHECK_CHUNK_ERASED bool "Force chunk erase check" depends on YAFFS_FS default n help - Normally YAFFS only checks chunks before writing until an erased + Normally yaffs only checks chunks before writing until an erased chunk is found. This helps to detect any partially written chunks that might have happened due to power loss. @@ -156,17 +120,6 @@ config YAFFS_ALWAYS_CHECK_CHUNK_ERASED If unsure, say Y. -config YAFFS_SHORT_NAMES_IN_RAM - bool "Cache short names in RAM" - depends on YAFFS_FS - default y - help - If this config is set, then short names are stored with the - yaffs_Object. This costs an extra 16 bytes of RAM per object, - but makes look-ups faster. - - If unsure, say Y. - config YAFFS_EMPTY_LOST_AND_FOUND bool "Empty lost and found on boot" depends on YAFFS_FS @@ -175,6 +128,8 @@ config YAFFS_EMPTY_LOST_AND_FOUND If this is enabled then the contents of lost and found is automatically dumped at mount. + If unsure, say N. + config YAFFS_DISABLE_BLOCK_REFRESHING bool "Disable yaffs2 block refreshing" depends on YAFFS_FS @@ -184,3 +139,23 @@ config YAFFS_DISABLE_BLOCK_REFRESHING Block refreshing infrequently refreshes the oldest block in a yaffs2 file system. This mechanism helps to refresh flash to mitigate against data loss. This is particularly useful for MLC. + + If unsure, say N. + +config YAFFS_DISABLE_BACKGROUND + bool "Disable yaffs2 background processing" + depends on YAFFS_FS + default n + help + If this is set, then background processing is disabled. + Background processing makes many foreground activities faster. + + If unsure, say N. + +config YAFFS_XATTR + bool "Enable yaffs2 xattr support" + depends on YAFFS_FS + default y + help + If this is set then yaffs2 will provide xattr support. + If unsure, say Y.