On Thu, 2008-05-08 at 00:44 +0200, Andrea Arcangeli wrote: > > Please note, we can't allow a thread to be in the middle of > zap_page_range while mmu_notifier_register runs.
You said yourself that mmu_notifier_register can be as slow as you want ... what about you use stop_machine for it ? I'm not even joking here :-) > vmtruncate takes 1 single lock, the i_mmap_lock of the inode. Not more > than one lock and we've to still take the global-system-wide lock > _before_ this single i_mmap_lock and no other lock at all. Ben. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
