linux.git/kernel/cgroup/rdma.c, branch v6.6.131

rdmacg: fix kernel-doc warnings in rdmacg

2023-06-05T19:45:14+00:00

Fix all kernel-doc warnings in rdmacg:

kernel/cgroup/rdma.c:209: warning: Function parameter or member 'cg'
not described in 'rdmacg_uncharge_hierarchy'
kernel/cgroup/rdma.c:230: warning: Function parameter or member 'cg'
not described in 'rdmacg_uncharge'

Signed-off-by: Gaosheng Cui 
Signed-off-by: Tejun Heo

cgroup: fix spelling mistakes

2021-05-24T16:45:26+00:00

Fix some spelling mistakes in comments:
hierarhcy ==> hierarchy
automtically ==> automatically
overriden ==> overridden
In absense of .. or ==> In absence of .. and
assocaited ==> associated
taget ==> target
initate ==> initiate
succeded ==> succeeded
curremt ==> current
udpated ==> updated

Signed-off-by: Zhen Lei 
Signed-off-by: Tejun Heo

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 451

2019-06-19T15:09:08+00:00

Based on 1 normalized pattern(s):

  this file is subject to the terms and conditions of version 2 of the
  gnu general public license see the file copying in the main
  directory of the linux distribution for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 5 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081200.872755311@linutronix.de
Signed-off-by: Greg Kroah-Hartman

IB/core: Simplify rdma cgroup registration

2019-01-18T20:43:10+00:00

RDMA cgroup registration routine always returns success, so simplify
function to be void and run clang formatter over whole CONFIG_CGROUP_RDMA
art of core_priv.h.

This reduces unwinding error path for regular registration and future net
namespace change functionality for rdma device.

Signed-off-by: Parav Pandit 
Signed-off-by: Leon Romanovsky 
Acked-by: Tejun Heo 
Signed-off-by: Jason Gunthorpe

rdmacg: Convert to use match_string() helper

2018-05-07T16:27:26+00:00

The new helper returns index of the matching string in an array.
We are going to use it here.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Tejun Heo

rdmacg: Fixed uninitialized current resource usage

2017-01-10T17:52:32+00:00

Fixed warning reported by kbuild test robot.
When reading current resource usage value, when no resources are
allocated, its possible that it can report a uninitialized value
for current resource usage.
This fix avoids it by initializing it to zero as no resource is
allocated.

Signed-off-by: Parav Pandit 
Signed-off-by: Tejun Heo

rdmacg: Added rdma cgroup controller

2017-01-10T16:14:27+00:00

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 
Signed-off-by: Tejun Heo