On 30/04/2016 05:40, Emilio G. Cota wrote: >> The tb_flush >> > is a fairly rare occurrence its not like its on the critical performance >> > path (although of course pathological cases are possible). > This is what I thought from the beginning, but wanted to give this > alternative a go anyway to see if it was feasible. > > On my end I won't do any more work on this approach. Will go back > to locks, despite Paolo's (justified) dislike for them =)
Which locks? tb_lock during tb_find_fast? The problem with that was that it slowed down everything a lot, wasn't it? To me, the RCU idea is not really about making tb_flush (the rare case) faster; it was more about keeping the rest simple and fast. Paolo
