As discussed in LSF, add configure option for the interface and mark it as experimental, so people can try/test. Signed-off-by: Shaohua Li <shli@xxxxxx> --- block/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/block/Kconfig b/block/Kconfig index e9f780f..89cd28f 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -115,6 +115,18 @@ config BLK_DEV_THROTTLING See Documentation/cgroups/blkio-controller.txt for more information. +config BLK_DEV_THROTTLING_LOW + bool "Block throttling .low limit interface support (EXPERIMENTAL)" + depends on BLK_DEV_THROTTLING + default n + ---help--- + Add .low limit interface for block throttling. The low limit is a best + effort limit to prioritize cgroups. Depending on the setting, the limit + can be used to protect cgroups in terms of bandwidth/iops and better + utilize disk resource. + + Note, this is an experimental interface and could be changed someday. + config BLK_CMDLINE_PARSER bool "Block device command line partition parser" default n -- 2.9.3
