linux-next: build failure after merge of the block tree

[Stephen Rothwell]

Hi Jens,

After merging the block tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/mtd/mtd_blkdevs.c: In function 'mtd_blktrans_cease_background':
drivers/mtd/mtd_blkdevs.c:127: error: implicit declaration of function 'elv_queue_empty'

Caused by commit 7eaceaccab5f ("block: remove per-queue plugging")
interacting with commit c7519dbf6f4b ("mtd_blkdevs: Add background
processing support") from the mtd tree.

I have no idea how to fix this up, so I have reverted the above commit
from them mtd tree (along with commits a32159024620 "mtd: Add mtdswap
block driver" and 89d8d32060de "mtd: fix printf format warnings, mostly
lack of %zd for size_t, in mtdswap" that depend on it).

Jens, maybe you could advise the mtd guys.
-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/

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