Commit 950c362b authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Greg Kroah-Hartman

x86/irq: Remove outgoing CPU from vector cleanup mask

commit 56d7d2f4 upstream.

We want to synchronize new vector assignments with a pending cleanup. Remove a
dying cpu from a pending cleanup mask.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Tested-by: default avatarBorislav Petkov <bp@alien8.de>
Tested-by: default avatarJoe 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/20151231160107.045961667@linutronix.deSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 00bb4471
......@@ -631,9 +631,23 @@ void irq_complete_move(struct irq_cfg *cfg)
void irq_force_complete_move(int irq)
{
struct irq_cfg *cfg = irq_cfg(irq);
struct apic_chip_data *data;
if (!cfg)
return;
if (cfg)
__irq_complete_move(cfg, cfg->vector);
__irq_complete_move(cfg, cfg->vector);
/*
* Remove this cpu from the cleanup mask. The IPI might have been sent
* just before the cpu was removed from the offline mask, but has not
* been processed because the CPU has interrupts disabled and is on
* the way out.
*/
raw_spin_lock(&vector_lock);
data = container_of(cfg, struct apic_chip_data, cfg);
cpumask_clear_cpu(smp_processor_id(), data->old_domain);
raw_spin_unlock(&vector_lock);
}
#endif
......
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