Commit 76ac66e4 authored by Richard Weinberger's avatar Richard Weinberger Committed by Artem Bityutskiy
Browse files

UBI: Wire-up fastmap 



Make fastmap known to Kconfig, UBI Makefile and MAINTAINERS.

Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
parent dbb7d2a8

MAINTAINERS

+6 −0
Original line number Diff line number Diff line
@@ -7075,6 +7075,12 @@ F: drivers/mtd/ubi/ 
F:	include/linux/mtd/ubi.h

F:	include/mtd/ubi-user.h



UNSORTED BLOCK IMAGES (UBI) Fastmap

M:	Richard Weinberger <richard@nod.at>

L:	linux-mtd@lists.infradead.org

S:	Maintained

F:	drivers/mtd/ubi/fastmap.c



USB ACM DRIVER

M:	Oliver Neukum <oliver@neukum.org>

L:	linux-usb@vger.kernel.org

drivers/mtd/ubi/Kconfig

+21 −0
Original line number Diff line number Diff line
@@ -56,6 +56,27 @@ config MTD_UBI_BEB_LIMIT 


	  Leave the default value if unsure.



config MTD_UBI_FASTMAP

	bool "UBI Fastmap (Experimental feature)"

	default n

	help

	   Important: this feature is experimental so far and the on-flash

	   format for fastmap may change in the next kernel versions



	   Fastmap is a mechanism which allows attaching an UBI device

	   in nearly constant time. Instead of scanning the whole MTD device it

	   only has to locate a checkpoint (called fastmap) on the device.

	   The on-flash fastmap contains all information needed to attach

	   the device. Using fastmap makes only sense on large devices where

	   attaching by scanning takes long. UBI will not automatically install

	   a fastmap on old images, but you can set the UBI module parameter

	   fm_autoconvert to 1 if you want so. Please note that fastmap-enabled

	   images are still usable with UBI implementations without

	   fastmap support. On typical flash devices the whole fastmap fits

	   into one PEB. UBI will reserve PEBs to hold two fastmaps.



	   If in doubt, say "N".



config MTD_UBI_GLUEBI

	tristate "MTD devices emulation driver (gluebi)"

	help

drivers/mtd/ubi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -2,5 +2,6 @@ obj-$(CONFIG_MTD_UBI) += ubi.o 


ubi-y += vtbl.o vmt.o upd.o build.o cdev.o kapi.o eba.o io.o wl.o attach.o

ubi-y += misc.o debug.o

ubi-$(CONFIG_MTD_UBI_FASTMAP) += fastmap.o



obj-$(CONFIG_MTD_UBI_GLUEBI) += gluebi.o