> Please consider the scenario when many cpus are calling > ia64_global_tlb_purge at the same time without any lock. > Using global variables to indicate tlb flush start and end is not safe > here. Isn't everything protected by the spin_lock(&ptcg_lock); ... spin_unlock(&ptcg_lock); in ia64_global_tlb_purge()? Though the comment that this lock is required for HW serialization would need to be updated to note that the s/w implementation also requires this serialization. -Tony - 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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