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authorVivek Goyal <vgoyal@redhat.com>2010-09-15 17:06:35 -0400
committerJens Axboe <jaxboe@fusionio.com>2010-09-16 08:42:52 +0200
commite43473b7f223ec866f7db273697e76c337c390f9 (patch)
treee90b52dbe4ec4ae37263a00e2bd9eaf5367cf72f /block/Kconfig
parent4c9eefa16c6f124ffcc736cb719b24ea27f85017 (diff)
downloadlinux-0-day-e43473b7f223ec866f7db273697e76c337c390f9.tar.gz
blkio: Core implementation of throttle policy
o Actual implementation of throttling policy in block layer. Currently it implements READ and WRITE bytes per second throttling logic. IOPS throttling comes in later patches. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.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 9be0b56..6c9213e 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -77,6 +77,18 @@ config BLK_DEV_INTEGRITY
T10/SCSI Data Integrity Field or the T13/ATA External Path
Protection. If in doubt, say N.
+config BLK_DEV_THROTTLING
+ bool "Block layer bio throttling support"
+ depends on BLK_CGROUP=y && EXPERIMENTAL
+ default n
+ ---help---
+ Block layer bio throttling support. It can be used to limit
+ the IO rate to a device. IO rate policies are per cgroup and
+ one needs to mount and use blkio cgroup controller for creating
+ cgroups and specifying per device IO rate policies.
+
+ See Documentation/cgroups/blkio-controller.txt for more information.
+
endif # BLOCK
config BLOCK_COMPAT