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authorParav Pandit <pandit.parav@gmail.com>2017-01-10 03:02:13 +0300
committerTejun Heo <tj@kernel.org>2017-01-10 19:14:27 +0300
commit39d3e7584a686541a3295ff1624d341e669e1afc (patch)
tree611c0f26db570d8207fb22a8ca2b96392196f0a3 /init
parent7b4632f048415263669676dda20fd5d811c3d3e4 (diff)
downloadlinux-39d3e7584a686541a3295ff1624d341e669e1afc.tar.xz
rdmacg: Added rdma cgroup controller
Added rdma cgroup controller that does accounting, limit enforcement on rdma/IB resources. Added rdma cgroup header file which defines its APIs to perform charging/uncharging functionality. It also defined APIs for RDMA/IB stack for device registration. Devices which are registered will participate in controller functions of accounting and limit enforcements. It define rdmacg_device structure to bind IB stack and RDMA cgroup controller. RDMA resources are tracked using resource pool. Resource pool is per device, per cgroup entity which allows setting up accounting limits on per device basis. Currently resources are defined by the RDMA cgroup. Resource pool is created/destroyed dynamically whenever charging/uncharging occurs respectively and whenever user configuration is done. Its a tradeoff of memory vs little more code space that creates resource pool object whenever necessary, instead of creating them during cgroup creation and device registration time. Signed-off-by: Parav Pandit <pandit.parav@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 223b734abccd..ef80d46a32b6 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1090,6 +1090,16 @@ config CGROUP_PIDS
since the PIDs limit only affects a process's ability to fork, not to
attach to a cgroup.
+config CGROUP_RDMA
+ bool "RDMA controller"
+ help
+ Provides enforcement of RDMA resources defined by IB stack.
+ It is fairly easy for consumers to exhaust RDMA resources, which
+ can result into resource unavailability to other consumers.
+ RDMA controller is designed to stop this from happening.
+ Attaching processes with active RDMA resources to the cgroup
+ hierarchy is allowed even if can cross the hierarchy's limit.
+
config CGROUP_FREEZER
bool "Freezer controller"
help