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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-12-31 16:30:50 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-01-15 13:44:01 +0100 |
| commit | 847667ef10356b824a11c853fc8a8b1b437b6a8d (patch) | |
| tree | 4a82369c56abf3231bcbb50a14e0589f9c912b6e | |
| parent | ab25ac02148b600e645f77cfb8b8ea415ed75bb4 (diff) | |
| download | linux-847667ef10356b824a11c853fc8a8b1b437b6a8d.tar.gz linux-847667ef10356b824a11c853fc8a8b1b437b6a8d.tar.bz2 linux-847667ef10356b824a11c853fc8a8b1b437b6a8d.zip | |
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>
| -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 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: |