On Thu, Apr 15, 2021 at 03:52:39AM +0800, Gao Xiang wrote: > After shrinking, some inactive AGs won't be valid anymore except > that these perags are still here. Introduce a new m_maxagcount > mainly used for freeing all perags. With active/passive perag references, I don't think this is necessary anymore. By the time we get to changing mp->m_sb.sb_agblocks, we've already guaranteed that there is nothing referencing the perag structures we are about to get rid of. And if we do a lookup on a agno we've already removed, it'll fail anyway because that perag can't be found in the radix tree.... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
