Messages in this thread | | | Date | Mon, 20 Jan 2014 03:50:17 -0500 | From | "Chen, Gong" <> | Subject | Re: [PATCH] x86, cpu hotplug, use cpumask stack safe variant cpumask_var_t in check_irq_vectors_for_cpu_disable() |
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On Fri, Jan 17, 2014 at 08:39:21AM -0500, Prarit Bhargava wrote: [...] > + > + if (!alloc_cpumask_var(&online_new, GFP_KERNEL)){ > + ret = -ENOMEM; > + goto out; > + } > + > + if (!alloc_cpumask_var(&affinity_new, GFP_KERNEL)) { > + ret = -ENOMEM; > + goto free_online_new; > + } > This function is protected by stop_machine, which means the interrupts have been disabled, so GFP_KERNEL is not reliable. [unhandled content-type:application/pgp-signature] | |