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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-25 12:25:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-25 12:25:48 -0700 |
| commit | 7e97b28309edc5669ced2bb1371704e8f8d084e3 (patch) | |
| tree | 9605694b00b4233a730ad86ea6d395cf59efc905 /drivers/mtd/ubi/Kconfig | |
| parent | 5421d059068341b3f21df1a21c2ba9175e55ebef (diff) | |
| parent | 3887ed5231fb6f339f36c3a0297c996cd1a1dad9 (diff) | |
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (82 commits)
[MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI Flash
[MTD] m25p80: add FAST_READ access support to M25Pxx
[MTD] [NAND] bf5xx_nand: Avoid crash if bfin_mac is installed.
[MTD] [NAND] at91_nand: control NCE signal
[MTD] [NAND] AT91 hardware ECC compile fix for at91sam9263 / at91sam9260
[MTD] [NAND] Hardware ECC controller on at91sam9263 / at91sam9260
[JFFS2] Introduce dbg_readinode2 log level, use it to shut read_dnode() up
[JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure.
[JFFS2] Add erase_checking_list to hold blocks being marked.
UBI: add a message
[JFFS2] Return values of jffs2_block_check_erase error paths
[MTD] Clean up AR7 partition map support
[MTD] [NOR] Fix Intel CFI driver for collie flash
[JFFS2] Finally remove redundant ref->__totlen field.
[JFFS2] Honour TEST_TOTLEN macro in debugging code. ref->__totlen is going!
[JFFS2] Add paranoia debugging for superblock counts
[JFFS2] Fix free space leak with in-band cleanmarkers
[JFFS2] Self-sufficient #includes in jffs2_fs_i.h: include <linux/mutex.h>
[MTD] [NAND] Verify probe by retrying to checking the results match
[MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board
...
Diffstat (limited to 'drivers/mtd/ubi/Kconfig')
| -rw-r--r-- | drivers/mtd/ubi/Kconfig | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig index b9daf159a4a..3f063108e95 100644 --- a/drivers/mtd/ubi/Kconfig +++ b/drivers/mtd/ubi/Kconfig @@ -24,8 +24,13 @@ config MTD_UBI_WL_THRESHOLD erase counter value and the lowest erase counter value of eraseblocks of UBI devices. When this threshold is exceeded, UBI starts performing wear leveling by means of moving data from eraseblock with low erase - counter to eraseblocks with high erase counter. Leave the default - value if unsure. + counter to eraseblocks with high erase counter. + + The default value should be OK for SLC NAND flashes, NOR flashes and + other flashes which have eraseblock life-cycle 100000 or more. + However, in case of MLC NAND flashes which typically have eraseblock + life-cycle less then 10000, the threshold should be lessened (e.g., + to 128 or 256, although it does not have to be power of 2). config MTD_UBI_BEB_RESERVE int "Percentage of reserved eraseblocks for bad eraseblocks handling" |