Commit-ID: 847667ef10356b824a11c853fc8a8b1b437b6a8d Gitweb: http://git.kernel.org/tip/847667ef10356b824a11c853fc8a8b1b437b6a8d Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Thu, 31 Dec 2015 16:30:50 +0000 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Fri, 15 Jan 2016 13:44:01 +0100 x86/irq: Remove offline cpus from vector cleanup No point of keeping offline cpus in the cleanup mask. Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Tested-by: Borislav Petkov <bp@xxxxxxxxx> Tested-by: Joe Lawrence <joe.lawrence@xxxxxxxxxxx> Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx> Cc: Jeremiah Mahler <jmmahler@xxxxxxxxx> Cc: andy.shevchenko@xxxxxxxxx Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx #4.3+ Link: http://lkml.kernel.org/r/20151231160106.808642683@xxxxxxxxxxxxx Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- arch/x86/kernel/apic/vector.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index fccfa3f..68d18b3 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: -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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