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authorChristoph Hellwig <hch@lst.de>2022-02-15 13:05:36 +0300
committerJens Axboe <axboe@kernel.dk>2022-02-17 05:39:09 +0300
commit248c793359daacd826a7507a258ffe41653efef7 (patch)
tree069d8709c9dcda5de41ec5ad7b62f0375bd9859a /drivers/md/Kconfig
parentf122d103b564e5fb7c82de902c6f8f6cbdf50ec9 (diff)
downloadlinux-248c793359daacd826a7507a258ffe41653efef7.tar.xz
blk-mq: make the blk-mq stacking code optional
The code to stack blk-mq drivers is only used by dm-multipath, and will preferably stay that way. Make it optional and only selected by device mapper, so that the buildbots more easily catch abuses like the one that slipped in in the ufs driver in the last merged window. Another positive side effects is that kernel builds without device mapper shrink a little bit as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Snitzer <snitzer@redhat.com> Link: https://lore.kernel.org/r/20220215100540.3892965-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/Kconfig')
-rw-r--r--drivers/md/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index b5ea378e66cb..998a5cfdbc4e 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -204,6 +204,7 @@ config BLK_DEV_DM
tristate "Device mapper support"
select BLOCK_HOLDER_DEPRECATED if SYSFS
select BLK_DEV_DM_BUILTIN
+ select BLK_MQ_STACKING
depends on DAX || DAX=n
help
Device-mapper is a low level volume manager. It works by allowing