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authorThomas Gleixner <tglx@linutronix.de>2015-12-31 16:30:50 +0000
committerThomas Gleixner <tglx@linutronix.de>2016-01-15 13:44:01 +0100
commit847667ef10356b824a11c853fc8a8b1b437b6a8d (patch)
tree4a82369c56abf3231bcbb50a14e0589f9c912b6e /arch
parentab25ac02148b600e645f77cfb8b8ea415ed75bb4 (diff)
downloadlinux-847667ef10356b824a11c853fc8a8b1b437b6a8d.tar.bz2
x86/irq: Remove offline cpus from vector cleanup
No point of keeping offline cpus in the cleanup mask. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Borislav Petkov <bp@alien8.de> Tested-by: Joe Lawrence <joe.lawrence@stratus.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jeremiah Mahler <jmmahler@gmail.com> Cc: andy.shevchenko@gmail.com Cc: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org #4.3+ Link: http://lkml.kernel.org/r/20151231160106.808642683@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/apic/vector.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index fccfa3f5545c..68d18b338e3a 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -202,8 +202,12 @@ next_cpu:
return -ENOSPC;
update:
- /* Cleanup required ? */
- d->move_in_progress = cpumask_intersects(d->old_domain, cpu_online_mask);
+ /*
+ * Exclude offline cpus from the cleanup mask and set the
+ * move_in_progress flag when the result is not empty.
+ */
+ cpumask_and(d->old_domain, d->old_domain, cpu_online_mask);
+ d->move_in_progress = !cpumask_empty(d->old_domain);
d->cfg.vector = vector;
cpumask_copy(d->domain, vector_cpumask);
success: