On Tue, 25 Mar 2008, Luck, Tony wrote: > 2) Is it feasible to rearrange the MM code so that we don't > hold any locks while doing a TLB flush? Or should I implement > some sort of spin_only_semaphore? The EMM notifier V2 patchset contains two patches that convert the immap_lock and the anon_vma lock to semaphores. After that much of the TLB flushing is (tlb_finish_mmu, tlb_gather etc) is running without holding any spinlocks. There would need to be additional measures for flushing inherent in macros (like ptep_clear_flush). Currently the pte functions are called under pte lock. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
