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Merge up to 2.6.22-rc2
Merge of 2.6.x-xfs-melb:linux:28675b by kenmcd.

comment "UBI debugging options"
	depends on MTD_UBI

config MTD_UBI_DEBUG
	bool "UBI debugging"
	depends on SYSFS
	depends on MTD_UBI
	select DEBUG_FS
	select KALLSYMS_ALL
	help
	  This option enables UBI debugging.

config MTD_UBI_DEBUG_MSG
	bool "UBI debugging messages"
	depends on MTD_UBI_DEBUG
	default n
	help
	  This option enables UBI debugging messages.

config MTD_UBI_DEBUG_PARANOID
	bool "Extra self-checks"
	default n
	depends on MTD_UBI_DEBUG
	help
	  This option enables extra checks in UBI code. Note this slows UBI down
	  significantly.

config MTD_UBI_DEBUG_DISABLE_BGT
	bool "Do not enable the UBI background thread"
	depends on MTD_UBI_DEBUG
	default n
	help
	  This option switches the background thread off by default. The thread
	  may be also be enabled/disabled via UBI sysfs.

config MTD_UBI_DEBUG_USERSPACE_IO
	bool "Direct user-space write/erase support"
	default n
	depends on MTD_UBI_DEBUG
	help
	  By default, users cannot directly write and erase individual
	  eraseblocks of dynamic volumes, and have to use update operation
	  instead. This option enables this capability - it is very useful for
	  debugging and testing.

config MTD_UBI_DEBUG_EMULATE_BITFLIPS
	bool "Emulate flash bit-flips"
	depends on MTD_UBI_DEBUG
	default n
	help
	  This option emulates bit-flips with probability 1/50, which in turn
	  causes scrubbing. Useful for debugging and stressing UBI.

config MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES
	bool "Emulate flash write failures"
	depends on MTD_UBI_DEBUG
	default n
	help
	  This option emulates write failures with probability 1/100. Useful for
	  debugging and testing how UBI handlines errors.

config MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES
	bool "Emulate flash erase failures"
	depends on MTD_UBI_DEBUG
	default n
	help
	  This option emulates erase failures with probability 1/100. Useful for
	  debugging and testing how UBI handlines errors.

menu "Additional UBI debugging messages"
	depends on MTD_UBI_DEBUG

config MTD_UBI_DEBUG_MSG_BLD
	bool "Additional UBI initialization and build messages"
	default n
	depends on MTD_UBI_DEBUG
	help
	  This option enables detailed UBI initialization and device build
	  debugging messages.

config MTD_UBI_DEBUG_MSG_EBA
	bool "Eraseblock association unit messages"
	default n
	depends on MTD_UBI_DEBUG
	help
	  This option enables debugging messages from the UBI eraseblock
	  association unit.

config MTD_UBI_DEBUG_MSG_WL
	bool "Wear-leveling unit messages"
	default n
	depends on MTD_UBI_DEBUG
	help
	  This option enables debugging messages from the UBI wear-leveling
	  unit.

config MTD_UBI_DEBUG_MSG_IO
	bool "Input/output unit messages"
	default n
	depends on MTD_UBI_DEBUG
	help
	  This option enables debugging messages from the UBI input/output unit.

endmenu # UBI debugging messages