Currently CMCI mask of hot-added CPU is always disabled after CPU hotplug. We should adjust this mask depending on CMC polling state. Thanks, H.Seto Signed-off-by: Hidetoshi Seto <seto.hidetoshi@xxxxxxxxxxxxxx> Signed-off-by: Satoru Takeuchi <takeuchi_satoru@xxxxxxxxxxxxxx> --- Index: linux-2.6.24-rc5/arch/ia64/kernel/mca.c =================================================================== --- linux-2.6.24-rc5.orig/arch/ia64/kernel/mca.c +++ linux-2.6.24-rc5/arch/ia64/kernel/mca.c @@ -75,6 +75,7 @@ #include <linux/workqueue.h> #include <linux/cpumask.h> #include <linux/kdebug.h> +#include <linux/cpu.h> #include <asm/delay.h> #include <asm/machvec.h> @@ -1813,6 +1814,36 @@ PAGE_KERNEL)); } +static void __cpuinit ia64_mca_cmc_vector_adjust(void *dummy) +{ + unsigned long flags; + + local_irq_save(flags); + if (!cmc_polling_enabled) + ia64_mca_cmc_vector_enable(NULL); + local_irq_restore(flags); +} + +static int __cpuinit mca_cpu_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) +{ + int hotcpu = (unsigned long) hcpu; + + switch (action) { + case CPU_ONLINE: + case CPU_ONLINE_FROZEN: + smp_call_function_single(hotcpu, ia64_mca_cmc_vector_adjust, + NULL, 1, 0); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block mca_cpu_notifier __cpuinitdata = { + .notifier_call = mca_cpu_callback +}; + /* * ia64_mca_init * @@ -1996,6 +2027,8 @@ if (!mca_init) return 0; + register_hotcpu_notifier(&mca_cpu_notifier); + /* Setup the CMCI/P vector and handler */ init_timer(&cmc_poll_timer); cmc_poll_timer.function = ia64_mca_cmc_poll; - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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