[14/14] ubi: Remove experimental stigma from Fastmap

Message ID 20180613212344.11608-15-richard@nod.at
State Under Review
Delegated to: Richard Weinberger
Headers show
  • ubi: Fastmap updates
Related show

Commit Message

Richard Weinberger June 13, 2018, 9:23 p.m.
I've hold up this a way too long. Over the last two years Fastmap gained
many users which made it possible to sort out the last issues.

Signed-off-by: Richard Weinberger <richard@nod.at>
 drivers/mtd/ubi/Kconfig | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)


diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index 43d131f5ae10..4de5e4e8d4ab 100644
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -57,12 +57,9 @@  config MTD_UBI_BEB_LIMIT
 	  Leave the default value if unsure.
-	bool "UBI Fastmap (Experimental feature)"
+	bool "UBI Fastmap"
 	default n
-	   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.
@@ -74,6 +71,8 @@  config MTD_UBI_FASTMAP
 	   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.
+	   While Fastmap is considered correct it weakens UBI wrt. robustness,
+	   a full scan of the MTD allows UBI to react better to bad flashes.
 	   If in doubt, say "N".