Merge tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs
Pull UBI bufix from Richard Weinberger:
"This contains a single bug fix for the UBI block driver"
* tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs:
UBI: block: Add missing cache flushes