On Thu, 28 Feb 2008, Andrea Arcangeli wrote: > > 3. Keep the refcount elevated until pages are freed in another execution > > context. > > Page refcount is not enough (the mmu_notifier_release will run in > another cpu the moment after i_mmap_lock is unlocked) but mm_users may > prevent us to change the i_mmap_lock to a mutex, but it'll slowdown > truncate as it'll have to drop the lock and restart the radix tree > walk every time so a change like this better fits as a separate > CONFIG_XPMEM IMHO.
Erm. This would also be needed by RDMA etc. _______________________________________________ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
