From: Fenghua Yu <fenghua.yu@intel.com>
Date: Fri, 18 Nov 2016 23:18:03 +0000 (-0800)
Subject: x86/intel_rdt: Fix setting of closid when adding CPUs to a group
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2659f46da8307871989f475accdcdfc4807e9e6c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

x86/intel_rdt: Fix setting of closid when adding CPUs to a group

There was a cut & paste error when adding code to update the per-cpu
closid when changing the bitmask of CPUs to an rdt group.

The update erronously assigns the closid of the default group to the CPUs
which are moved to a group instead of assigning the closid of their new
group. Use the proper closid.

Fixes: f410770293a1 ("x86/intel_rdt: Update percpu closid immeditately on CPUs affected by change")
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
Cc: "Tony Luck" <tony.luck@intel.com>
Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com>
Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com>
Cc: "H. Peter Anvin" <h.peter.anvin@intel.com>
Link: http://lkml.kernel.org/r/1479511084-59727-1-git-send-email-fenghua.yu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 98edba431033..eccea8a6adf8 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -278,7 +278,7 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
 				continue;
 			cpumask_andnot(&r->cpu_mask, &r->cpu_mask, tmpmask);
 		}
-		rdt_update_percpu_closid(tmpmask, rdtgroup_default.closid);
+		rdt_update_percpu_closid(tmpmask, rdtgrp->closid);
 	}
 
 	/* Done pushing/pulling - update this group with new mask */