diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-12-31 16:30:50 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-03 15:07:31 -0800 |
| commit | 550ac3f791f5cdf26021dfa6011adcb5f38856b6 (patch) | |
| tree | c9a395bc214074af730c81d4e465cbba0bb1ef6a | |
| parent | c655fd016c2917c5f88c4c694bdcdf9e68f4f661 (diff) | |
x86/irq: Remove offline cpus from vector cleanup
commit 847667ef10356b824a11c853fc8a8b1b437b6a8d upstream.
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>
Link: http://lkml.kernel.org/r/20151231160106.808642683@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index c604ca651b8a..175d3ac4690e 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -200,8 +200,12 @@ 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: |