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| author | Reinette Chatre <reinette.chatre@intel.com> | 2018-06-22 15:42:14 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-06-23 13:03:47 +0200 |
| commit | bbcee99b67c5a8cc4e8037d561be9ed293961fd3 (patch) | |
| tree | d41329884f2c36b214933c2c1fc31575575d8418 | |
| parent | 2a5d76a4fc6469ea9dd6f02fcd4dad3a129bc1c0 (diff) | |
| download | kernel_replicant_linux-bbcee99b67c5a8cc4e8037d561be9ed293961fd3.tar.gz kernel_replicant_linux-bbcee99b67c5a8cc4e8037d561be9ed293961fd3.tar.bz2 kernel_replicant_linux-bbcee99b67c5a8cc4e8037d561be9ed293961fd3.zip | |
x86/intel_rdt: Add check to determine if monitoring in progress
When a resource group is pseudo-locked it is orphaned without a class of
service associated with it. We thus do not want any monitoring in progress
on a resource group that will be used for pseudo-locking.
Introduce a test that can be used to determine if pseudo-locking in
progress on a resource group. Temporarily mark it as unused to avoid
compile warnings until it is used.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fenghua.yu@intel.com
Cc: tony.luck@intel.com
Cc: vikas.shivappa@linux.intel.com
Cc: gavin.hindman@intel.com
Cc: jithu.joseph@intel.com
Cc: dave.hansen@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/14fd9494f87ca72a213b3a197d1172d4e66ae196.1529706536.git.reinette.chatre@intel.com
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c index dc79b3090ac5..8693dbe602a2 100644 --- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c +++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c @@ -14,6 +14,19 @@ #include "intel_rdt.h" /** + * rdtgroup_monitor_in_progress - Test if monitoring in progress + * @r: resource group being queried + * + * Return: 1 if monitor groups have been created for this resource + * group, 0 otherwise. + */ +static int __attribute__ ((unused)) +rdtgroup_monitor_in_progress(struct rdtgroup *rdtgrp) +{ + return !list_empty(&rdtgrp->mon.crdtgrp_list); +} + +/** * rdtgroup_locksetup_user_restrict - Restrict user access to group * @rdtgrp: resource group needing access restricted * |