kconfig

嵌入式linux下基于SRAM的内存文件系统

config PRAMFS
	tristate "Persistent and Protected RAM file system support"
	help
	   If your system has a block of fast (comparable in access speed to
	   system memory) and non-volatile RAM and you wish to mount a
	   light-weight, full-featured, and space-efficient filesystem over it,
	   say Y here, and read <file:Documentation/filesystems/pramfs.txt>.

	   To compile this as a module,  choose M here: the module will be
	   called pramfs.

config PRAMFS_NOWP
	bool "Disable PRAMFS write protection (default is enabled)"
	depends on PRAMFS
	help
	   Say Y here to disable the write protect feature of PRAMFS.

config ROOT_PRAMFS
	bool "Root file system on PRAMFS"
	depends on PRAMFS
	help
	  Say Y if you have enabled PRAMFS, and you want to be
	  able to use PRAMFS as the root filesystem.  To actually
	  have the kernel mount PRAMFS as a root file system, you
	  must also pass the command line parameter
	  "root=/dev/null rootflags=physaddr=0x********" to the kernel
	  (replace 0x******** with the physical address location of the
	  previously initialized PRAMFS memory to boot with).

config PRAMFS_FAILSAFE
	bool "Enable powerfail safe support for PRAMFS"
	depends on PRAMFS
	default y

config PRAMFS_VNVRAM
	bool "PRAMFS based on Virtual Non-Volatile RAM support"
	depends on PRAMFS && VNVRAM
	default y