Commit-ID: 8938db1da6e73ef2217c7ae304a89f8e29ad22c7 Gitweb: https://git.kernel.org/tip/8938db1da6e73ef2217c7ae304a89f8e29ad22c7 Author: Reinette Chatre <reinette.cha...@intel.com> AuthorDate: Tue, 29 May 2018 05:57:47 -0700 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Wed, 20 Jun 2018 00:56:35 +0200
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.cha...@intel.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: fenghua...@intel.com Cc: tony.l...@intel.com Cc: vikas.shiva...@linux.intel.com Cc: gavin.hind...@intel.com Cc: jithu.jos...@intel.com Cc: dave.han...@intel.com Cc: h...@zytor.com Link: https://lkml.kernel.org/r/d3efe6b526e28e335463578870ec7d5dc91ed96d.1527593971.git.reinette.cha...@intel.com --- arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) 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 @@ -13,6 +13,19 @@ #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
