pfm_install_alt_pmu_interrupt   28 arch/ia64/include/asm/perfmon.h extern int  pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
pfm_install_alt_pmu_interrupt 6417 arch/ia64/kernel/perfmon.c EXPORT_SYMBOL_GPL(pfm_install_alt_pmu_interrupt);