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x86/irq: Remove offline cpus from vector cleanup

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commit 847667ef10 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>
This commit is contained in:
Thomas Gleixner 2015-12-31 16:30:50 +00:00 committed by Greg Kroah-Hartman
parent c655fd016c
commit 550ac3f791
1 changed files with 6 additions and 2 deletions
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8
arch/x86/kernel/apic/vector.c
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@ -200,8 +200,12 @@ static int __assign_irq_vector(int irq, struct apic_chip_data *d,
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: