Commit 1c277e50 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

dm: make EBS depend on !HIGHMEM 



__ebs_rw_bvec use page_address on the submitted bios data, and thus
can't deal with highmem.  Disable the target on highmem configs.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210804095634.460779-4-hch@lst.de


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent b93ef453

drivers/md/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -342,7 +342,7 @@ config DM_WRITECACHE 


config DM_EBS

	tristate "Emulated block size target (EXPERIMENTAL)"

	depends on BLK_DEV_DM

	depends on BLK_DEV_DM && !HIGHMEM

	select DM_BUFIO

	help

	  dm-ebs emulates smaller logical block size on backing devices