"Denis V. Lunev" <dlunev@xxxxxxxxx> writes: > Daniel Lezcano wrote: >> Oh, by the way, I forgot something important you spotted with the list >> protected by the mutex. >> >> When looking at ipv6/fib_hash.c with Benjamin, we need to browse the network >> namespaces list for the garbage collecting, but we are in an interrupt >> handler, so I can not use rtnl_lock. > where exactly.... > > all interesting places are called under rtnl already... > >> Why is not possible to protect the list with a simple spinlock ? so we can >> call spin_lock_bh when we are in interrupt handler. > > see my old patch with a locking rules :) Actually at this point given that your rtnl_unlock() cleanup made it in things are much simpler and if we really need to we can add a spinlock protecting things. > By the way, I have forgotten to mention, that the original patch works from 2004 > for OpenVz :) Probably. It is a different optimization and maintenance point however. So while it can inspire things it isn't an apples to apples comparison. Eric _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
