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authorShaohua Li <shli@fb.com>2017-03-27 10:51:31 -0700
committerJens Axboe <axboe@fb.com>2017-03-28 08:02:20 -0600
commit327ffb9b37a9df80dad4fa176fbf0c0fb1ac4ac0 (patch)
tree7f195b776921f0f4d090c29c94fcdfc7bd600522 /block/Kconfig
parent9f626e372a602486fa319c2c6ab18e8068b30094 (diff)
downloadlinux-0-day-327ffb9b37a9df80dad4fa176fbf0c0fb1ac4ac0.tar.gz
blk-throttle: add configure option for new .low interface
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@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/Kconfig')
-rw-r--r--block/Kconfig12
1 files changed, 12 insertions, 0 deletions
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